Active Faults Study of

Potential Great Earthquake in Sunda Arc

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Introduction

• Western Java is the most dense population in Indonesia.

• Many infrastructures such as : Industries, Tourism, Public service facilities, etc.

• Western Java is predicted by scientists as one of the highest potential earthquake and tsunami hazard.

• Advance technology is needed to reduce the risk.

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This explanation has been

Broadly presented in

some events

and published by media

Evidence

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Lock Zone

Rotasi Sumatra dari GPS (Cecep dkk, 2002)

BPPT JAMSTEC

BPPT JAMSTEC

Deep Sea Observation by Sinkai JAMSTEC

BPPT JAMSTEC

BPPT JAMSTEC

?

Result Published by

Dr. Rama Hanifa.

Energy accumulation is

Equal to Minimum Mag.

8.3.

Danny Hilman and other

Predicted to be M9

Equal to MMI 7 or More.

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Research by BPPT : Preliminary result

MODELLING BY DR. WIDJO KONGKO

Tinggi tsunami di JSS sekitar 6 – 10

Untuk scenario M9

• Indonesia will be suffered and has big lost if the predicted EQ and tsunami occurred.

• We need to be well prepare and need good hazard mitigation and adaptation technology

• BPPT has very long collaboration with JAMSTEC > 20 years.

• DONET (Dense Ocean Network System for Earthquake and Tsunami) is one of the most advance technology.

• BPPT-JAMSTEC plan to implement this technology

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DONET: Dense Oceanfloor Network System for Earthquakes and Tsunamis

(JAMSTEC, proposed for Southern West Java)

Benefit

22/12/2009 Footer 21

• Precise Earthquake epycentrum calculation

• Earthquake early detection.

• Well inform tsunami Early Warning

• Very good data for modelling and research activity

including earthquake prediction

• Expensive but safe and almost free maintenance

• Ina buoys are broken due to vandalism.

• Ina buoys technology is High cost maintenance and

operation

Other Factors • The best location to support infrastructure of

DONET (Electric Power Plan, transportation, safety, and man power).

• Use higher technology in the future which needs earthquake early detection :

– Jakarta Subway’s system.

– High building

– High risk Industry in Cilegon

– Evacuation of tourist at Charita

– Giant sea wall infrastructure and Sunda Strait Bridge. 22

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Terima Kasih