Black stars M8 0 Most earthquakes occur in

地震在哪裡? 為什麼有地震? Black stars: M>=8. 0 板塊運動 必產生地震! 震源深度 Most earthquakes occur in narrow geographic belts which mark tectonic plate boundaries

• 開放式災害管理資訊系統(Open. ISDM) 主題計 畫, supported by 中研院永續科學中心 • 即時的地震資訊 (beta 版) TESIS, Taiwan Earthquake Science Information System 網址:

BE CALM? DON’T WORRY? • 定罪原因 • 災害評估不足 (並不是地震預測) • 與民眾的溝通不良 • 這個事件的啟示 • 了解地震的風險 • 民眾該更警覺，做好防災準備 • 藉由媒體傳達正確資訊和態度 “EITHER THEY DIDN’T KNOW CERTAIN THINGS, WHICH IS A PROBLEM, OR THEY DIDN’T KNOW HOW TO COMMUNICATE WHAT THEY DID KNOW, WHICH IS ALSO A PROBLEM. ” Nature, 2011

THANK YOU~ 台灣地震科學中心 http: //tec. earth. sinica. edu. tw/index. php

2004 SUMATRA M=9. 1 RUPTURE >283, 000 deaths 1300 km long, ~8 minutes of rupture Lay et al. (Science, 2005) Ishii et al. (Nature, 2005)

WHERE DO EARTHQUAKES OCCUR? Concentrations on belts: Ø Circum-Pacific Ø Mediterranean-Himalayan Ø Mid-ocean ridges Depth distribution: Ø Shallow (<70 km) Ø Intermediate (70 -350 km) Ø Deep ( >350 km) What is the max depth for earthquakes to occur?