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SEISMIC HAZARD ESTIMATION BASED ON ACTIVE FAULT DATA AND HISTORICAL EARTHQUAKE DATA

Hiroyuki Kameda, Toshihiko Okumura

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Abstract

A method is presented for using historical earthquake data and active fault data jointly for seismic hazard estimation. Japan and its vicinity are divided into 22 regions, and then earthquake occurrence rates are estimated for each region on the basis of information combined from historical earthquakes and active faults.On the basis of simulation results, iso-seismal maps are developed in terms of peak ground acceleration, peak ground velocity, and ground motion duration.

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What this paper is about

A method is presented for using historical earthquake data and active fault data jointly for seismic hazard estimation. Japan and its vicinity are divided into 22 regions, and then earthquake occurrence rates are estimated for each region on the basis of information combined from historical earthquakes and active faults.On the basis of simulation results, iso-seismal maps are developed in terms of peak ground acceleration, peak ground velocity, and ground motion duration.

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Available abstract

A method is presented for using historical earthquake data and active fault data jointly for seismic hazard estimation. Japan and its vicinity are divided into 22 regions, and then earthquake occurrence rates are estimated for each region on the basis of information combined from historical earthquakes and active faults.On the basis of simulation results, iso-seismal maps are developed in terms of peak ground acceleration, peak ground velocity, and ground motion duration.

Key concepts: Peak ground acceleration, Seismology, Seismic hazard, Active fault, Earthquake simulation, Seismic microzonation, Geology, Earthquake scenario

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