Historic tsunamis

From Wikipedia, the free encyclopedia

A depiction of wave shoaling.

This article lists notable historic tsunamis, which are sorted by the date and location that the tsunami occurred, the earthquake that generated it, or both.

Because of seismic and volcanic activity at tectonic plate boundaries along the Pacific Ring of Fire, tsunamis occur most frequently in thePacific Ocean, but are

worldwide natural phenomena. They are possible wherever large bodies of water are found, including inland lakes, where they can be caused by landslides and glacier calving.

Very small tsunamis, non-destructive and undetectable without specialized equipment, occur frequently as a result of minor earthquakes and other events.

As early as 426 BC, the Greek historian Thucydides inquired in his book History of the Peloponnesian War (3.89.1-6) about the causes of tsunamis. He argued rightly that it

could only be explained as a consequence of ocean earthquakes, and could see no other possible causes for the phenomenon.[1]

Crete and the Argolid and other locations were destroyed by a tsunami caused by the eruption of Thira, which destroyed Minoan civilization onCrete and related cultures in

the Cyclades and in areas facing the eruption on the Greek mainland such as the Argolid.

During the Persian siege of the sea town Potidaea, Greece, in 479 BC,[2] the Greek historian Herodotus reports how the Persian attackers who tried to exploit an unusual retreat

of the water were suddenly surprised by "a great flood-tide, higher, as the people of the place say, than any one of the many that had been before". Herodotus attributes the

cause of the sudden flood to the wrath of Poseidon.[3]

Contents

 [hide]

1 Before 1000 AD

o 1.1 ≈6100 BC: Norwegian Sea

o 1.2 ≈1600 BC: Santorini, Greece

o 1.3 426 BC: Maliakos Gulf, Greece

o 1.4 373 BC: Helike, Greece

o 1.5 79 AD: Gulf of Naples, Italy

o 1.6 365 AD: Alexandria, Eastern Mediterranean

o 1.7 684 AD: Hakuho, Japan (白鳳大地震)

o 1.8 869 AD: Sendai, Japan

o 1.9 887 AD: Ninna Nankai, Japan (仁和南海地震)

2 1000–1700

o 2.1 1293: Kamakura, Japan (鎌倉大地震)

o 2.2 1303: Eastern Mediterranean

o 2.3 1361: Shōhei Nankai, Japan (正平 & 康安)南海地震)

o 2.4 1498: Meiō Nankai, Japan (明応地震)

o 2.5 1541: Nueva Cadiz, Venezuela

o 2.6 1605: Keichō Nankaido, Japan

o 2.7 1607: Bristol Channel, Great Britain

o 2.8 1698: Seikaido-Nankaido, Japan

3 1700s

o 3.1 1700: Vancouver Island, Canada

o 3.2 1707: Hōei, Japan (宝永大地震)

o 3.3 1741: W. Hokkaido, Japan

o 3.4 1755: Lisbon, Portugal

o 3.5 1771: Yaeyama Islands, Okinawa, Japan (八重山地震)

o 3.6 1792: Mount Unzen, Nagasaki Prefecture, Kyūshū, Japan (島原大変肥後迷惑)

4 1800s

o 4.1 1833: Sumatra, Indonesia

o 4.2 1854: Nankai, Tokai, and Kyushu Japan (安政南海地震)

o 4.3 1855: Edo, Japan (安政江戸大地震)

o 4.4 1868: Hawaiian Islands

o 4.5 1868: Arica, Chile

o 4.6 1883: Krakatoa, Sunda Strait, Indonesia

o 4.7 1896: Meiji Sanriku, Japan (明治三陸地震)

5 1900–1950

o 5.1 1908: Messina, Italy

o 5.2 1923: Kanto, Japan (関東大震災)

o 5.3 1929: Newfoundland

o 5.4 1933: Showa Sanriku, Japan (昭和三陸地震)

o 5.5 1944: Tonankai, Japan (東南海地震)

o 5.6 1946: Nankaidō, Japan (南海地震)

o 5.7 1946: Aleutian Islands

6 1950–2000

o 6.1 1952: Severo-Kurilsk, Kuril Islands, USSR

o 6.2 1958: Lituya Bay, Alaska, USA

o 6.3 1960: Valdivia, Chile

o 6.4 1963: Vajont Dam, Monte Toc, Italy

o 6.5 1964: Niigata, Japan (新潟地震)

o 6.6 1964: Alaska, USA

o 6.7 1976: Moro Gulf, Mindanao, Philippines

o 6.8 1979: Tumaco, Colombia

o 6.9 1980: Spirit Lake, Washington, USA

o 6.10 1983: Sea of Japan (日本海中部地震)

o 6.11 1993: Okushiri, Hokkaido, Japan (北海道南西沖地震)

o 6.12 1998: Papua New Guinea

7 2000s

o 7.1 2004: Indian Ocean

o 7.2 2006: South of Java Island

o 7.3 2006: Kuril Islands

o 7.4 2007: Solomon Islands

o 7.5 2007: Niigata, Japan (新潟県中越沖地震)

o 7.6 2010: Chile

o 7.7 2011: New Zealand

o 7.8 2011: Pacific coast of Japan

8 Highest or tallest

9 Deadliest

10 Other historic tsunamis

o 10.1 South Asia

o 10.2 North America and the Caribbean

10.2.1 Possible

o 10.3 Europe

10.3.1 Possible

11 See also

12 References

13 External links

[edit]Before 1000 AD

[edit]≈6100 BC: Norwegian Sea

Main article: Storegga Slide

The Storegga Slides occurred 100 km north-west of the Møre coast in the Norwegian Sea, causing a very large tsunami in the North Atlantic Ocean. This collapse involved an

estimated 290 km length of coastal shelf, with a total volume of 3,500 km3 of debris.[4] Based on carbon dating of plant material recovered from sediment deposited by the

tsunami, the latest incident occurred around 6100 BC.[5] In Scotland, traces of the subsequent tsunami have been recorded, with deposited sediment being discovered

in Montrose Basin, the Firth of Forth, up to 80 km inland and 4 metres above current normal tide levels.

[edit]≈1600 BC: Santorini, Greece

Main article: Minoan eruption

The volcanic eruption on Santorini, Greece is assumed to have caused severe damage to cities around it, most notably the Minoan civilization on Crete. A tsunami is assumed

to be the factor that caused the most damage.

[edit]426 BC: Maliakos Gulf, Greece

Main article: 426 BC Maliakos Gulf tsunami

In the summer of 426 BC, a tsunami hit hard the Maliakos bay in Eastern Greece.[6] The Greek historian Thucydides (3.89.1-6) described how the tsunami and a series of

earthquakes intervened with the events of the raging Peloponnesian War (431-404 BC) and correlated for the first time in the history of natural science quakes and waves in

terms of cause and effect.[7]

[edit]373 BC: Helike, Greece

An earthquake and a tsunami destroyed the prosperous Greek city Helike, lying 2 km away from the sea. The fate of the city, which remained permanently submerged, was

often commented upon by ancient writers[8] and may have inspired the contemporary Plato to the myth of Atlantis.

[edit]79 AD: Gulf of Naples, Italy

A smaller tsunami was witnessed in the Bay of Naples by Pliny the Younger during the eruption of Mount Vesuvius.[9]

[edit]365 AD: Alexandria, Eastern Mediterranean

Main article: 365 Crete earthquake

In the morning of July 21, 365 AD, an earthquake of great magnitude caused a huge tsunami more than 100 feet (30 m) high. It devastated Alexandria and the eastern shores of

the Mediterranean, killing thousands and hurling ships nearly two miles inland.[10][11] The Roman historian Ammianus Marcellinus  (Res Gestae 26.10.15-19) describes in his vivid

account the typical sequence of the tsunami including an incipient earthquake, the sudden retreat of the sea and a following gigantic wave:

Slightly after daybreak, and heralded by a thick succession of fiercely shaken thunderbolts, the solidity of the whole earth was made to shake and shudder, and the sea was driven away, its waves were rolled

back, and it disappeared, so that the abyss of the depths was uncovered and many-shaped varieties of sea-creatures were seen stuck in the slime; the great wastes of those valleys and mountains, which the

very creation had dismissed beneath the vast whirlpools, at that moment, as it was given to be believed, looked up at the sun's rays. Many ships, then, were stranded as if on dry land, and people wandered at will

about the paltry remains of the waters to collect fish and the like in their hands; then the roaring sea as if insulted by its repulse rises back in turn, and through the teeming shoals dashed itself violently on islands

and extensive tracts of the mainland, and flattened innumerable buildings in towns or wherever they were found. Thus in the raging conflict of the elements, the face of the earth was changed to reveal wondrous

sights. For the mass of waters returning when least expected killed many thousands by drowning, and with the tides whipped up to a height as they rushed back, some ships, after the anger of the watery element

had grown old, were seen to have sunk, and the bodies of people killed in shipwrecks lay there, faces up or down. Other huge ships, thrust out by the mad blasts, perched on the roofs of houses, as happened at

Alexandria, and others were hurled nearly two miles from the shore, like the Laconian vessel near the town of Methone which I saw when I passed by, yawning apart from long decay. [10]

The tsunami in 365 AD was so devastating that the anniversary of the disaster was still commemorated annually at the end of the 6th century in Alexandria as a "day of

horror."[12]

Researchers at the University of Cambridge recently carbon dated corals on the coast of Crete which were lifted 10 metres and clear of the water in one massive push. This

indicates that the tsunami of 365 AD was generated by an earthquake in a steep fault in the Hellenic trench near Crete. The scientists estimate that such a large uplift is only

likely to occur once in 5,000 years, however the other segments of the fault could slip on a similar scale - and could happen every 800 years or so. It is unsure whether "one of

the contiguous patches might slip in the future."[13]

[edit]684 AD: Hakuho, Japan (白鳳大地震)

Japan is the nation with the most recorded tsunamis in the world.[citation needed] The number of tsunamis in Japan totals 195 over a 1,313 year period (thru 1997), averaging one

event every 6.73 years, the highest rate of occurrence in the world.[citation needed]

The Great Hakuho Earthquake was the first recorded tsunami in Japan. It hit in Japan on November 29, 684. It occurred off the shore of the Kii

Peninsula, Nankaido, Shikoku, Kii, and Awaji region. It has been estimated to be a magnitude 8.4 [14] It was followed by a huge tsunami, but no estimates on how many deaths.

[15]

[edit]869 AD: Sendai, Japan

Main article: 869 Sanriku earthquake and tsunami

The Sendai region was struck by a major tsunami that caused flooding extending 4 km inland from the coast. The town of Tagajō was destroyed, with an estimated 1,000

casualties.

[edit]887 AD: Ninna Nankai, Japan (仁和南海地震)

On August 26 of the Ninna era, there was a strong shock in the Kyoto region, causing great destruction and some victims. At the same time, there was a strong earthquake

in Osaka, Shiga, Gifu, andNagano prefectures. A tsunami flooded the coastal locality, and some people died. The coast of Osaka and primarily Osaka Bay suffered especially

heavily from the tsunami. The tsunami was also observed on the coast of Hyuga-Nada.[14]

[edit]1000–1700

[edit]1293: Kamakura, Japan (鎌倉大地震)

Magnitude 7.1 Quake and tsunami hit Kamakura, Japan's de facto capital, killing 23,000 after resulting fires.

[edit]1303: Eastern Mediterranean

Main article: 1303 Crete earthquake

A team from Southern Cross University in Lismore, New South Wales, Australia, has found geological evidence of five tsunamis that have hit Greece over the past 2000 years.

"Most were small and local, but in 1303 a larger one hit Crete, Rhodes, Alexandria and Acre in Palestine."[16]

[edit]1361: Shōhei Nankai, Japan (正平 & 康安)南海地震)

On Aug 3 of the Shōhei era, a 8.4 Nankaido quake and tsunami hit, with 660 deaths, 1700 houses destroyed. There was a strong earthquake in Tokushima, Osaka, Wakayama,

and Nara Prefectures and on Awaji Island. A tsunami was observed on the coast of Tokushima and Kochi Prefectures, in Kii Strait  and in Osaka Bay.Yunomine Hot

Spring (Wakayama Prefecture) stopped. Yukiminato, Awacompletely destroyed by tsunami and more than 1,700 houses washed away. 60 persons drowned at Awa.

[edit]1498: Meiō Nankai, Japan (明応地震)

Main article: 1498 Meiō Nankaidō earthquake

Sep 20 7.5 Quake and tsunami hit in the Meiō era. Port in Wakayama damaged by tsunami of several meters in height. 30-40 thousand deaths estimated.[14][17] The building

around great Buddha of Kamakura (altitude 7m) was swept away by the tsunami.[18]

[edit]1541: Nueva Cadiz, Venezuela

In 1528, Cristóbal Guerra  founded Nueva Cádiz on the island of Cubagua, the first Spanish settlement in Venezuela, and one of the first ones in the Americas. Nueva Cádiz,

which reached a population between 1000 and 1500, was possibly destroyed in an earthquake followed by tsunami in 1541—it also could have been a major hurricane.[19] The

ruins were declared a National Monument of Venezuela in 1979.

[edit]1605: Keichō Nankaido, Japan

Main article: 1605 Keichō Nankaido earthquake

On Feb 3 of the Keichō era, a 8.1 Quake and tsunami hit 700 houses (41%) at Hiro, Wakayama Prefecture washed away. 3,600 drowned in Shishikui area. Awa, wave height 6-

7m. 350 at Kannoura 60 at Sakihama drowned, wave height 5–6 m and 8–10 m, respectively. Total more than 5,000 drowned. An enormous tsunami with a maximum known

rise of water of 30 m was observed on the coast from the Boso Peninsula  to the eastern part of Kyushu Island. The eastern part of the Boso Peninsula, the coast of Tokyo Bay,

the coast of the prefectures of Kanagawa and Shizuoka, and the southeastern coast of Kochi Prefecture suffered especially heavily.[14]

[edit]1607: Bristol Channel, Great Britain

Main article: Bristol Channel floods, 1607

On 30 January 1607, approximately 2,000 or more people were drowned, houses and villages swept away and an estimated 200 square miles (518 km2) was inundated. Until

the 1990s, it was undisputed that the flooding was caused by a storm surge aggravated by other factors, but recent research indicates a tsunami.[20] The probable cause is

postulated as a submarine earthquake off the Irish coast.

[edit]1698: Seikaido-Nankaido, Japan

On December 22, 1698, a large tsunami struck Seikaido-Nankaido, Japan.[14]

[edit]1700s

[edit]1700: Vancouver Island, Canada

Main article: 1700 Cascadia earthquake

On January 26, 1700, the Cascadia earthquake , one of the largest earthquakes on record (estimated MW 9 magnitude), ruptured the Cascadia subduction zone  (C SZ ) offshore

from Vancouver Island to northern California, and caused a massive tsunami across the Pacific Northwest logged in Japan and oral traditions of the indigenous peoples of the

Pacific Northwest.[21]

[edit]1707: Hōei, Japan (宝永大地震)

Main article: 1707 Hōei earthquake

On October 28, 1707, during the Hōei era, an 8.4 earthquake and a tsunami up to 10 m in height[22] struck at the Kochi Prefecture. More than 29,000 houses in total wrecked

and washed away and about 30,000 deaths. In Tosa, 11,170 houses washed away and 18,441 people drowned. About 700 drowned and 603 houses washed away in Osaka.

20 m high[citation needed] at Tanezaki, Tosa, 6.58 at Muroto. Hot springs at Yunomine, Sanji, Ryujin, Seto-Kanayana (Kii) and Dogo (Iyo,145 days) stopped.[14]

[edit]1741: W. Hokkaido, Japan

On 29 August 1741 the western side of Hokkaido was hit by a tsunami associated with the eruption of the volcano on Oshima island. The cause of the tsunami is thought to

have been a large landslide, partly submarine, triggered by the eruption.[23] 1,467 people were killed on Hokkaido and another 8 in Aomori Prefecture.[24]

[edit]1755: Lisbon, Portugal

Main article: 1755 Lisbon earthquake

Tens of thousands of Portuguese people who survived the Great Lisbon Earthquake on November 1, 1755 were killed by a tsunami which followed 40 minutes later. Many

townspeople fled to the waterfront, believing the area safe from fires and from falling debris from aftershocks. When at the waterfront, they saw that the sea was rapidly

receding, revealing a sea floor littered with lost cargo and forgotten shipwrecks. The tsunami struck with a maximum height of 15 metres (49 ft), and went far inland.

The earthquake, tsunami, and many fires killed between 60,000 and 100,000 in Lisbon alone, making it one of the deadliest natural disasters in recorded history. Historical

records of explorations byVasco da Gama and other early navigators were lost, and countless buildings were destroyed (including most examples of Portugal's Manueline

architecture). Europeans of the 18th century struggled to understand the disaster within religious and rational belief systems. Philosophers of the Enlightenment,

notably Voltaire, wrote about the event. The philosophical concept of the sublime, as described by philosopher Immanuel Kant in the Observations on the Feeling of the

Beautiful and Sublime, took inspiration in part from attempts to comprehend the enormity of the Lisbon quake and tsunami.

The tsunami took just over 4 hours to travel over 1,000 miles (1,600 km) to Cornwall in the United Kingdom. An account by Arnold Boscowitz claimed "great loss of life." It also

hit Galway in Ireland, and caused some serious damage to the Spanish Arch section of the city wall.

[edit]1771: Yaeyama Islands, Okinawa, Japan (八重山地震)

Main article: 1771 Great Yaeyama Tsunami

An undersea earthquake of estimated magnitude 7.4 occurred near Yaeyama Islands  in Okinawa, Japan on 4 April 1771 at about 8 A.M.. The earthquake is not believed to have

directly resulted in any deaths, but a resulting tsunami is thought to have killed about 12,000 people (9313 on the Yaeyama Islands and 2548 on Miyako Islands according to

one source [25]). Estimates of the highest seawater runup on Ishigaki Island , range between 30 meters and 85.4 meters. The tsunami put an abrupt stop to population growth on

the islands, and was followed by malaria epidemics and crop failures which decreased the population further. It was to be another 148 years before population returned to its

pre-tsunami level. ja: 八重山地震

[edit]1792: Mount Unzen, Nagasaki Prefecture, Kyūshū, Japan (島原大変肥後迷惑)

Main article: Mount Unzen

Tsunamis were the main cause of death for Japan's worst-ever volcanic disaster, due to an eruption of Mount Unzen in Nagasaki Prefecture, Kyūshū, Japan. It began towards

the end of 1791 as a series of earthquakes on the western flank of Mount Unzen which gradually moved towards Fugen-daké, one of Mount Unzen's peaks. In February

1792, Fugen-daké started to erupt, triggering a lava flow which continued for two months. Meanwhile, the earthquakes continued, shifting nearer to the city of Shimabara. On the

night of 21 May, two large earthquakes were followed by a collapse of the eastern flank of Mount Unzen's Mayuyama dome, causing an avalanche which swept through

Shimabara and into Ariake Bay, triggering a tsunami. It is not known to this day whether the collapse occurred as a result of an eruption of the dome or as a result of the

earthquakes. The tsunami struck Higo Province on the other side of Ariake Bay  before bouncing back and hitting Shimabara again. Out of an estimated total of 15,000 fatalities,

around 5,000 is thought to have been killed by the landslide, around 5,000 by the tsunami across the bay in Higo Province, and a further 5,000 by the tsunami returning to strike

Shimabara. The waves reached a height of 330 ft (100 m), classing this tsunami as a small megatsunami.

[edit]1800s

[edit]1833: Sumatra, Indonesia

Main article: 1833 Sumatra earthquake

On 25 November 1833, a massive earthquake estimated to have been between 8.8-9.2 on the moment magnitude scale, struck Sumatra in Indonesia. The coast of Sumatra

near the quake's epicentre was hardest hit by the resulting tsunami.

[edit]1854: Nankai, Tokai, and Kyushu Japan (安政南海地震)

Main article: Ansei Great Earthquakes

The Ansei Quake which hit the south coast of Japan, was actually set of 3 quakes, two magnitude 8.4 quakes and a 7.4 quake all in 3 days.

The first on Nov 4, 1854 near what is today Aichi Prefecture and Shizuoka Prefecture with tsunami heights of 4–6 m (though with localized run-ups up to 16.5 m, thought

to be due to harbor shape).[26]

It was followed by another 8.4 the next day in Wakayama Prefecture. The resulting tsunami generated waves as high as 8.4 m.[27] The tsunami washed 15,000 homes

away.[citation needed] The number of homes destroyed directly by the earthquake was 2,598; 1,443 people died.[14]

The third was a 7.4 quake on Nov 7, 1854 in Ehime Prefecture and Oita Prefecture.

The total result was 80,000-100,000 deaths.[28]

[edit]1855: Edo, Japan (安政江戸大地震)

Main article: 1855 Ansei Edo earthquake

The following year, the 1855 Great Ansei Edo Quake hit (Tokyo region), killing 4,500 to 10,000 people. Popular stories of the time blamed the quakes and tsunamis on

giant catfish called Namazuthrashing about. The Japanese era name was changed to bring good luck after 4 menacing quake/tsunamis in 2 years.

[edit]1868: Hawaiian Islands

On April 2, 1868, a local earthquake with a magnitude estimated between 7.5 and 8.0 rocked the southeast coast of the Big Island of Hawaiʻi. It triggered a landslide on the

slopes of the Mauna Loavolcano, five miles (8 km) north of Pahala, killing 31 people. A tsunami then claimed 46 additional lives. The villages of Punaluu, Ninole, Kawaa,

Honuapo, and Keauhou Landing were severely damaged and the village of ʻĀpua was destroyed. According to one account, the tsunami "rolled in over the tops of the coconut

trees, probably 60 feet high .... inland a distance of a quarter of a mile in some places, taking out to sea when it returned, houses, men, women, and almost everything

movable." This was reported in the 1988 edition of Walter C. Dudley's book "Tsunami!" (ISBN 0-8248-1125-9).

[edit]1868: Arica, Chile

On August 16, 1868, an earthquake with a magnitude estimated at 8.5 struck the oceanic trench currently known as the Peru-Chile Trench. A resulting tsunami struck the port

of Arica, then part ofPeru, killing an estimated 25,000 in Arica and 70,000 in all. Three military vessels anchored at Arica, the US warship Wateree and the storeship Fredonia,

and the Peruvian warship America, were swept up by the tsunami.[29]

[edit]1883: Krakatoa, Sunda Strait, Indonesia

Main article: 1883 eruption of Krakatoa

The island volcano of Krakatoa in Indonesia exploded with devastating fury on August 26–27, 1883, blowing its underground magma chamber partly empty so that much

overlying land and seabed collapsed into it. A series of large tsunami waves was generated from the collapse, some reaching a height of over 40 meters above sea level.

Tsunami waves were observed throughout the Indian Ocean, the Pacific Ocean, and even as far away as the American West Coast, and South America. On the facing coasts

of Java and Sumatra the sea flood went many miles inland and caused such vast loss of life[30] that one area was never resettled but reverted to the jungle and is now the Ujung

Kulon nature reserve.

[edit]1896: Meiji Sanriku, Japan (明治三陸地震)

Main article: 1896 Meiji-Sanriku earthquake

On 15 June 1896, at around 19:36 local time, a large undersea earthquake off the Sanriku coast of northeastern Honshū, Japan, triggered tsunami waves which struck the coast

about half an hour later. Although the earthquake itself is not thought to have resulted in any fatalities, the waves, which reached a height of 100 feet (30 m), killed approximately

27,000 people. In 2005 the same general area was hit by the 2005 Sanriku Japan Earthquake, but with no major tsunami.

[edit]1900–1950

[edit]1908: Messina, Italy

The aftermath of the tsunami that struckMessina in 1908.

The 1908 Messina earthquake in Italy, triggered a large tsunami that took more than 70,000 lives.

[edit]1923: Kanto, Japan (関東大震災)

Main article: Great Kanto Earthquake

The Great Kanto Earthquake, which occurred in eastern Japan on 1 September 1923, and devastated Tokyo, Yokohama and the surrounding areas, caused tsunamis which

struck the Shonan coast, Boso Peninsula , Izu Islands  and the east coast of Izu Peninsula , within minutes in some cases. In Atami, waves reaching 12 meters were recorded.

Examples of tsunami damage include about 100 people killed along Yuigahama beach in Kamakura and an estimated 50 people on the Enoshima causeway. However,

tsunamis only accounted for a small proportion of the final death toll of over 100,000, most of whom were killed in fire.

[edit]1929: Newfoundland

The aftermath of the tsunami that struckNewfoundland in 1929.

On November 18, 1929, an earthquake of magnitude 7.2 occurred beneath the Laurentian Slope on the Grand Banks. The quake was felt throughout the Atlantic Provinces

of Canada and as far west as Ottawa and as far south as Claymont, Delaware. The resulting tsunami measured over 7 meters in height and took about 2½ hours to reach

the Burin Peninsula on the south coast of Newfoundland, where 28 people lost their lives in various communities. It also snapped telegraph lines laid under the Atlantic.

[edit]1933: Showa Sanriku, Japan (昭和三陸地震)

Main article: 1933 Sanriku earthquake

On March 3, 1933, the Sanriku coast of northeastern Honshū, Japan which had already suffered a devastating tsunami in 1896 (see above) was again stuck by tsunami waves

as a result of an offshore magnitude 8.1 earthquake. The quake destroyed about 5,000 homes and killed 3,068 people, the vast majority as a result of tsunami waves. Especially

hard hit was the coastal village of Taro (now part of Miyako city ) in Iwate Prefecture, which lost 42% of its total population and 98% of its buildings. Taro is now protected by an

enormous tsunami wall, currently 10 meters in height and over 2 kilometers long. The original wall, constructed in 1958, saved Taro from destruction of the 1960 Chilean

tsunami (see below). However it failed to protect Taro from the 2011 Tōhoku earthquake and tsunami which inundated the village with 12–15 meters of water.[31]

[edit]1944: Tonankai, Japan (東南海地震)

Main article: 1944 Tōnankai earthquake

A magnitude 8.0 earthquake on 7 December 1944, about 20 km off the Shima Peninsula  in Japan, which struck the Pacific coast of central Japan, mainly Mie, Aichi,

and Shizuoka Prefectures. News of the event was downplayed by the authorities in order to protect wartime morale, and as a result the full extent of the damage is not known,

but the quake is estimated to have killed 1223 people, the tsunami being the leading cause of the fatalities. ja: 東南海地震

[edit]1946: Nankaidō, Japan (南海地震)

Main article: 1946 Nankaidō earthquake

The Nankai earthquake on 21 December 1946 had a magnitude of 8.4 and hit at 4:19 [local time]. There was a catastrophic earthquake on the southwest of Japan in the Nankai

Trough. It was felt almost everywhere in the central and western parts of the country. The tsunami that washed away 1451 houses and caused 1500 deaths in Japan. It was

observed on tide gauges in California, Hawaii, and Peru.[14]

The Nankai megathrust earthquakes  are periodic earthquakes occurring off the southern coast of Kii Peninsula  and Shikoku, Japan every 100 to 150 years. Particularly hard hit

were the coastal towns of Kushimoto and Kainan on the Kii Peninsula. The quake led to more than 1400 deaths, tsunami being the leading cause. measuring 8.4.

[edit]1946: Aleutian Islands

Main article: 1946 Aleutian Islands earthquake

Residents run from an approaching tsunami inHilo, Hawai’i.

On April 1, 1946, the Aleutian Islands tsunami killed 159 people on Hawaii and five in Alaska (the lighthouse keepers at the Scotch Cap Light in theAleutians). It resulted in the

creation of a tsunami warning system known as the Pacific Tsunami Warning Center (PTWC), established in 1949 forOceania countries. The tsunami is known as the April

Fools Day Tsunami in Hawaii due to people thinking the warnings were an April Fools prank.

[edit]1950–2000

[edit]1952: Severo-Kurilsk, Kuril Islands, USSR

Main article: 1952 Severo-Kurilsk tsunami

The November 5, 1952 tsunami killed 2,336 on the Kuril Islands, USSR.

[edit]1958: Lituya Bay, Alaska, USA

Main article: 1958 Lituya Bay megatsunami

On July 9, 1958, an earthquake caused a landslide which caused a megatsunami to reaching a height taller than the Empire State Building, measuring over 520 metres

(1,706 ft), killing two.

[edit]1960: Valdivia, Chile

Main article: 1960 Valdivia earthquake

The magnitude-9.5 Great Chilean Earthquake of May 22, 1960 is the strongest earthquake ever recorded. Its epicenter, off the coast of South Central Chile, generated one of

the most destructive tsunami of the 20th Century. It also caused a volcanic eruption.

It spread across the entire Pacific Ocean, with waves measuring up to 25 meters high. The first tsunami arrived at Hilo approximately 14.8 hrs after it originated off the coast of

South Central Chile. The highest wave at Hilo Bay was measured at around 10.7 m (35 ft). 61 lives were lost allegedly due to people's failure to heed warning sirens.

Almost 22 hours after the quake, the waves hit the ill-fated Sanriku coast of Japan, reaching up to 3 m above high tide, and killed 142 people. Up to 6,000 people died in total

worldwide due to the earthquake and tsunami.[32]

[edit]1963: Vajont Dam, Monte Toc, Italy

Main article: Vajont Dam

The Vajont Dam  as seen from Longaronetoday, showing approximately the top 60-70 metres of concrete. The 200-250 metre wall of water (megatsunami) that over-topped the dam would have obscured virtually all of the sky in this

picture.

The Vajont Dam  was completed in 1961 under Monte Toc, 100 km north of Venice, Italy. At 262 metres, it was one of the highest dams in the world. On October 9, 1963 an

enormous landslide of about 260 million cubic metres of forest, earth, and rock, fell into the reservoir at up to 110 km per hour (68 mph). The resulting displacement of water

caused 50 million cubic metres of water to overtop the dam in a 250-metre high megatsunami wave. The flooding destroyed the villages

of Longarone, Pirago, Rivalta, Villanova and Faè, killing 1,450 people. Almost 2,000 people (some sources report 1,909) perished in total.

[edit]1964: Niigata, Japan (新潟地震)

The 1964 Niigata earthquake in Japan killed 28 people, and liquefacted whole apartment buildings. A subsequent tsunami destroyed the port of Niigata city.ja: 新潟地震

[edit]1964: Alaska, USA

Main article: 1964 Alaska earthquake

After the magnitude 9.2 Good Friday Earthquake, tsunamis struck Alaska, British Columbia, California, and coastal Pacific Northwest towns, killing 121 people. The waves were

up to 100 feet (30 m) tall, and killed 11 people as far away as Crescent City, California. This happened on March 27, 1964. The incident was covered in Dennis Powers' The

Raging Sea: The Powerful Account of the Worst Tsunami in U.S. History (ISBN 0806526823).

[edit]1976: Moro Gulf, Mindanao, Philippines

On August 16, 1976 at 12:11 A.M., a devastating earthquake of 7.9 hit the island of Mindanao, Philippines. It created a tsunami that devastated more than 700 km of coastline

bordering Moro Gulf in the North Celebes Sea. An estimated number of victims for this tragedy left 5,000 dead, 2,200 missing or presumed dead, more than 9,500 injured and a

total of 93,500 people were left homeless. It devastated the cities of Cotabato, Pagadian, and Zamboanga, and the and provinces of Basilan, Lanao del Norte , Lanao del

Sur, Maguindanao, Sultan Kudarat, Sulu, and Zamboanga del Sur .

[edit]1979: Tumaco, Colombia

A magnitude 7.9 earthquake occurred on December 12, 1979 at 7:59:4.3 UTC along the Pacific coast of Colombia and Ecuador. The earthquake and the resulting tsunami

caused the destruction of at least six fishing villages and the death of hundreds of people in the Colombian Department of Nariño. The earthquake was felt

in Bogotá, Cali, Popayán, Buenaventura, and several other cities and towns in Colombia and in Guayaquil, Esmeraldas, Quito, and other parts of Ecuador. When the tsunami hit

the coast, it caused huge destruction in the city of Tumaco, as well as in the small towns of El Charco, San Juan, Mosquera, and Salahonda on the Pacific coast of Colombia.

The total number of victims of this tragedy was 259 dead, 798 wounded and 95 missing or presumed dead.

[edit]1980: Spirit Lake, Washington, USA

Main articles: Spirit Lake (Washington), 1980 eruption of Mount St. Helens, and Mount St. Helens

On May 18, 1980, the upper 460 m (1400 ft) of Mount St. Helens had failed, in the course of a major eruption of that volcano, causing a major landslide. One lobe of the

landslide surged onto the nearbySpirit Lake, creating a megatsunami of 260 meters high.[33]

[edit]1983: Sea of Japan (日本海中部地震)

On May 26, 1983 at 11:59:57 local time, a magnitude-7.7 earthquake occurred in the Sea of Japan, about 100 km west of the coast of Noshiro in Akita Prefecture, Japan. Out of

the 107 fatalities, all but four were killed by the resulting tsunami, which struck communities along the coast, especially Aomori and Akita Prefectures and the east coast of Noto

Peninsula. Footage of the tsunami hitting the fishing harbor of Wajima on Noto Peninsula was broadcast on TV. The waves exceeded 10 meters in some areas. Three of the

fatalities were along the east coast of South Korea (whether North Koreawas affected is not known). The tsunami also hit Okushiri Island, the site of a more deadly tsunami 10

years later. ja: 日本海中部地震

[edit]1993: Okushiri, Hokkaido, Japan (北海道南西沖地震)

Main article: 1993 Hokkaido earthquake

A devastating tsunami wave occurred along the coasts of Hokkaidō in Japan as a result of a magnitude 7.8 earthquake, 80 miles (130 km) offshore, on July 12, 1993.

Within minutes, the Japan Meteorological Agency issued a tsunami warning that was broadcast on NHK in English and Japanese (archived at NHK library). However, it was too

late for Okushiri, a small island near the epicenter, which was struck with extremely big waves, some reaching 30 meters, within two to five minutes of the quake. Aonae, a

village on a low-lying peninsula at the southern tip of the island, was devastated over the course of the following hour by 13 waves of over two meters’ height arriving from

multiple directions, including waves that had bounced back off Hokkaidō—despite being surrounded by tsunami barriers. Of 250 people killed as a result of the quake, 197 were

victims of the series of tsunamis that hit Okushiri; the waves also caused deaths on the coast of Hokkaidō. While many residents, remembering the 1983 tsunami (see above),

survived by quickly evacuating on foot to higher ground, it is thought that many others underestimated how soon the waves would arrive (the 1983 tsunami took 17 minutes to hit

Okushiri) and were killed as they attempted to evacuate by car along the village’s narrow lanes. The highest wave of the tsunami was a staggering 31 meters (102 ft) high. ja: 北

海道南西沖地震

[edit]1998: Papua New Guinea

Main article: 1998 Papua New Guinea earthquake

On 17 July 1998, a Papua New Guinea tsunami killed approximately 2,200 people.[34] A 7.1-magnitude earthquake 24 km offshore was followed within 11 minutes by a tsunami

about 15 metres tall. The tsunami was generated by an undersea landslide, which was triggered by the earthquake. The magnitude of the earthquake was too low to generate a

tsunami. The villages of Arop and Warapu were destroyed.

[edit]2000s

[edit]2004: Indian Ocean

Main article: 2004 Indian Ocean earthquake

The 2004 Indian Ocean earthquake; Tsunami strikes Ao Nang , Thailand.

The 2004 Indian Ocean earthquake, which had a moment magnitude of 9.1–9.3,[35] triggered a series of lethal tsunamis on December 26, 2004, that killed approximately

230,210 people (including 168,000 in Indonesia alone), making it the deadliest tsunami as well as one of the deadliest natural disasters inrecorded history. It was also caused by

the third largest earthquake in recorded history. The initial surge was measured at a height of approximately 33 meters (108 ft), making it the largest earthquake-generated

tsunami in recorded history. The tsunami killed people over an area ranging from the immediate vicinity of the quake in Indonesia, Thailand, and the north-western coast

of Malaysia, to thousands of kilometres away in Bangladesh, India, Sri Lanka, theMaldives, and even as far away as Somalia, Kenya, and Tanzania in eastern Africa. This trans-

Indian Ocean tsunami is an example of a teletsunami, which can travel vast distances across the open ocean. In this case, it is an ocean-wide tsunami.

Unlike in the Pacific Ocean, there was no organized alert service covering the Indian Ocean. This was in part due to the absence of major tsunami events since 1883

(the Krakatoa eruption, which killed 36,000 people). In light of the 2004 Indian Ocean tsunami, UNESCO and other world bodies have called for an international tsunami

monitoring system.

[edit]2006: South of Java Island

Main article: July 2006 Java earthquake

A 7.7 magnitude earthquake rocked the Indian Ocean seabed on July 17, 2006, 200 km south of Pangandaran, a beautiful beach famous to surfers for its perfect waves. This

earthquake triggered tsunamis which height varied from 2 meters at Cilacap to 6 meters at Cimerak beach, where it swept away and flattened buildings as far as 400 meters

away from the coastline. More than 800 people were reported missing or dead.

[edit]2006: Kuril Islands

Main article: 2006 Kuril Islands earthquake

On 15 November 2006, a magnitude 8.3 earthquake occurred off the coast near the Kuril Islands. In spite of the quake's large 8.3 magnitude, a relatively small tsunami was

generated. The small tsunami was recorded or observed in Japan and at distant locations throughout the Pacific.

[edit]2007: Solomon Islands

Main article: 2007 Solomon Islands earthquake

On April 24, 2007, a powerful magnitude 8.1 (initially 7.6) earthquake hit the East Pacific region about 40 km (25 miles), south of Ghizo Island in the western Solomon Islands at

7:39 a.m., resulting in a tsunami that was up to 12 m (36 feet) tall. The wave, which struck the coast of Solomon Islands (mainly Choiseul, Ghizo Island, Ranongga, and Simbo),

triggered region-wide tsunami warnings and watches extending from Japan to New Zealand to Hawaii and the eastern seaboard of Australia. The tsunami that followed the

earthquake killed 52 people. Dozens more have been injured with entire towns inundated by the sweeping water which traveled 300 meters inland in some places. A state of

national emergency was declared for the Solomon Islands. On the island of Choiseul, a wall of water reported to be 9.1 m (30 feet) high swept almost 400 meters inland

destroying everything in its path. The largest waves hit the northern tip of Simbo Island. There two villages, Tapurai and Riquru, were completely destroyed by a 12 m wave,

killing 10 people. Officials estimate that the tsunami displaced more than 5000 residents all over the archipelago.

[edit]2007: Niigata, Japan (新潟県中越沖地震)

Main article: 2007 Niigata earthquake

On 16 July 2007, a strong earthquake struck northwestern Japan, causing a fire and minor radioactive water leak at one of the world's most powerful nuclear power plants. At

least seven people were killed and hundreds injured. Japan's Meteorological Agency measured the quake at 6.8 on the richter scale and sending aftershocks of 6.6. The U.S.

Geological Survey, which monitors quakes around the world, said the initial quake registered 6.7. A tsunami watch was issued along the Sea of Japan. The predicted height of

the tsunami was estimated to be 50 cm (20 inches).[36] That earthquake sparked only a few small tsunamis, growing to be no more than about 20 cm (8 inches) tall. However,

the 1964 quake and tsunami north of the current one destroyed the port of the city of Niigata. ja: 新潟県中越沖地震

[edit]2010: Chile

Destruction provoked by the 2010 Chile earthquake and tsunami, in Pichilemu,O'Higgins Region , Chile.

Main article: 2010 Chile earthquake

The seismic event in the southern Pacific produced waves measuring 1.8–9 meters along the Sanriku Coastline  of northeastern Honshu in Japan.[clarification needed][37]

[edit]2011: New Zealand

Main article: 2011 Christchurch earthquake

On February 22, 2011, a 6.3 magnitude earthquake hit the Canterbury Region of the South Island, New Zealand. Some 200 kilometres (120 mi) away from the earthquake's

epicenter, around 30 million tonnes of ice tumbled off the Tasman Glacier into Tasman Lake, producing a series of 3.5 m (11 ft) high tsunami waves, which hit tourist boats in

the lake.[38][39]

[edit]2011: Pacific coast of Japan

Main article: 2011 Tōhoku earthquake and tsunami

On March 11, 2011, off the Pacific coast of Japan, a 9.0 magnitude earthquake produced a tsunami 33 feet (10 m) high along Japan's northeastern coast. The wave caused

widespread devastation, with an official count of more than 25,000 people confirmed to be killed/missing. The highest tsunami which was recorded at Ryōri Bay, Ōfunato,

reached a total height of 97 feet (30 m).[40] In addition the tsunami precipitated multiple hydrogen explosions and nuclear meltdown at the Fukushima I Nuclear Power Plant.

Tsunami warnings were issued to the entirePacific Rim.[41][42]

[edit]Highest or tallest

Main article: Megatsunami

The tallest tsunami ever recorded so far is the 1958 Lituya Bay megatsunami, which had a record height of 524 m (1742 ft).

The only other recent megatsunamis are the 1980 Spirit Lake megatsunami, which measured 260 m (780 ft) tall and the 1963 Vajont Dam megatsunami which had

an initial height of 250 m (750 ft)

[edit]Deadliest

The deadliest tsunami in recorded history was the 2004 Asian tsunami, which killed almost 230,000 people in eleven countries across the Indian Ocean.

[edit]Other historic tsunamis

Other tsunamis that have occurred include the following:

ca. 500 BC: Poompuhar, Tamil Nadu, India, Maldives

1541: a tsunami struck the earliest European settlement in Brazil, São Vicente. There is no record of deaths or injuries, but the town was almost completely destroyed.

[edit]South Asia

Tsunamis in South Asia

Source: Amateur Seismic Centre, India[43]

Date Location

1524 Near Dabhol, Maharashtra

2 April 1762 Arakan Coast, Myanmar

16 June 1819 Rann of Kachchh, Gujarat, India

31 October 1847 Great Nicobar Island, India

31 December 1881 Car Nicobar Island, India

26 August 1883 Krakatoa, Sunda Strait , Indonesia

28 November 1945 Mekran coast, Balochistan

[edit]North America and the Caribbean

1690 - Nevis

14 November 1840 - Great Swell on the Delaware River

18 November 1867 - Virgin Islands

17 November 1872 - Maine

11 October 1918 - Puerto Rico

9 January 1926 - Maine

4 August 1946 - Dominican Republic

18 August 1946 - Dominican Republic

15 November 2006 - Crescent City, CA

[edit]Possible

35 million years ago - Chesapeake Bay impact crater, Chesapeake Bay

9 June 1913 - Longport, NJ

6 August 1923 - Rockaway Park, Queens, NY.

8 August 1924 - Coney Island, NY.

19 August 1931 - Atlantic City, NJ

22 June 1932 - Cuyutlán, Colima, Mexico

19 May 1964 - Northeast USA

4 July 1992 - Daytona Beach, FL

Source: NOAA National Weather Service Forecast Office,[44]

[edit]Europe

6100 BC - Storegga Slide , Norway - The Storegga slide generated a huge tsunami that washed through the North Atlantic Ocean, hitting Norway, Iceland and the east

coast of Scotland, where it reached a height of 21 metres, and even washed over some of the Shetland Islands.

11 January 1683 - An earthquake in Italy triggered a tsunami that killed more than 1000 people.

6 February 1783 - An offshore earthquake in Southern Italy caused a tsunami that killed around 1500 people.

20 September 1867 - An earthquake in Greece caused a tsunami that killed 12 people.

11 September 1930 - 2 people were killed by a tsunami in Italy, caused by an undersea earthquake measuring 7.7 on the Richter Scale.

9 July 1956 - An earthquake in Greece generated a tsunami that drowned 4 people.

28 February 1969 - A submarine earthquake measuring 7.3 on the Richter Scale, with its epicentre of the coast of Portugal, caused a tsunami that hit Northern Portugal,

parts of Spain, andMorocco. No lives were lost.

16 October 1979 - 23 people died when the coast of Nice, France, was hit by a tsunami, caused by an undersea landslide. The sea suddenly receded from the shore and

returned in two huge waves, hitting a 36-mile (58 km)-long coastal stretch. Hundreds of boats were overturned, and 11 people working in a shipyard were drowned.

13 December 1990 - 6 people died when an undersea earthquake in Italy caused a tsunami.

17 August 1999 - The 1999 İzmit earthquake in Northwest Turkey triggered a 2 metre high tsunami in the Sea of Marmara.[45][46][47][48]

[edit]Possible

≈43 BC: a massive and widespread oceanic flood with large-scale destruction was reported by multiple ancient writers for the Western Mediterranean regions of

the Tyrrhenian Coast, most notably near Ostia, and for Gibraltar and the Atlas region, while the possible tsunami also created a flood of the Tiber in the city of Rome.[49]

The 1607 Bristol Channel floods, which were traditionally believed to be a massive storm surge, could possibly have been a tsunami, caused by an earthquake or

landslide off the coast of Southern Ireland. There is some evidence suggesting it was a tsunami, but not enough to confirm. It was the deadliest natural disaster in the

history of the United Kingdom, and killed around 2000 people fromSomerset to Cardiff.

[edit]See also

Disasters portal

Tsunami

Tsunamis in the United Kingdom

List of deadly earthquakes since 1900

List of earthquakes

List of natural disasters by death toll

[edit]References

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