The recent M5.3 earthquake in Colorado and M5.9 earthquake in Virginia serve as reminders that shallow earthquakes can happen away from known fault lines. The Cascadia Region has experienced many shallow historical earthquakes. A shallow earthquake on the Seattle or Portland Hills faults would result in widespread damage and disruption. For more information on shallow earthquake, refer to CREW Cascadia Shallow Earthquakes and our other scenario documents at: EQ Scenarios.
A 23-page report by an EERI reconnaissance team on the Societal Dimensions of the March 11, 2011, Great East Japan (Tohoku) Earthquake and Tsunami is now available online. It covers the topics of emergency management, casualties, emergency shelter and housing, economic impacts, debris management, recovery planning, and research questions for each topic. The EERI report is available here.