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Indonesia
Indonesia Earthquake
The Indonesian Archipelago is one of the most volcanically active
regions in the world located in the convergence zone of the three major
lithospheric plates: the Indo-Australian plate, the Pacific plate, and
the Eurasian plate. The interaction of these major plates, as well as
the Philippine Plate to the north, leads to a great deal of seismic
activity.
Although much of western Indonesia is located on a stable extension of
the Eurasian plate, the Sumatra Fault Zone spans the entire length of
Sumatra. This transform fault zone is analogous to the San Andreas Fault
Zone in California, producing a significant number of shallow,
destructive, high magnitude events. The seismic hazard arising from the
Sumatra Fault Zone is among the highest in Indonesia.
Indonesia is also located in one of the most active and most complex
subduction zones in the world. The two largest historical events in
Indonesia happened in 1883 and measured M8.7-M8.8 and M8.3-8.5. Both
caused massive destruction and generated damaging tsunamis along the
southern coast of Sumatra. These events were generated from the
subduction zone along the Sumatra and Java coasts.
Since 1996, the RMS® Indonesia Earthquake Model has been used by local
and international institutions to manage earthquake risk. Application
include development of earthquake rating recommendations by the
Indonesian insurance association (Dewan Asuransi Indonesia), and risk
transfer applications for facultative and treaty reinsurance.
Model Highlights
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Model developed with RMS research and the support
of local seismologists and engineers |
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Accounts for local/regional construction
differences and building code changes |
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281 event sources capturing seismicity in
Sumatra, Java, and Irian Jaya |
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Sumatran Fault Zone modeled in 14 distinct
segments, capturing the variation in hazard along this critical
source of earthquake risk |
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Hazard database for soil amplification potential
and liquefaction susceptibility |
Geographic Scope
The RMS® Indonesia Earthquake Model covers Sumatra, Java, and Irian Jaya,
the regions of highest insured exposure to seismic hazard
Exposure Data Resolution
Data input supported at the following levels of resolution:
latitude-longitude, postal code, postal town, kabupaten (city
equivalent), province (county equivalent), and CRESTA zone |
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