現地地震計を用いた地震防災システムの開発と性能評価

書誌事項

タイトル別名
  • DEVELOPMENT OF EARTHQUAKE ALERT SYSTEM USING ONSITE SEISMOMETERS AND ITS PERFORMANCE
  • ゲンチ ジシンケイ オ モチイタ ジシン ボウサイ システム ノ カイハツ ト セイノウ ヒョウカ

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抄録

An earthquake disaster prevention system using onsite seismometers has been developed since 2009. However, ground motion intensities are underestimated for far-field earthquakes, such as great subduction earthquakes. In this paper, a general procedure to improve S-wave intensity prediction for far-field earthquakes is presented. The proposed method predicts S-wave intensity (peak ground acceleration) just before arrival of S-wave, using information of P-wave intensity as well as its duration. Finally, accuracy of the proposed method is validated with simulation using observed records. These results confirmed that S-wave intensity can be accurately estimated by the proposed method.

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