Tag Archive for Earthquake

DHS San Francisco Earthquake Study Hayward Fault Magnitude 7.0 Scenario

The results of this analysis show a strong earthquake will likely cause significant damage to critical infrastructure in the area affecting 547 dams or water control structures, render approximately 300 roadway segments unusable, and cause damage to 172 water and wastewater treatment systems. The scenario earthquake will likely cause damage to 154 dams in the area. Seven of the dams will likely experience Extensive or Complete damage. The Ward Creek Dam, which is used for flood control, is likely to incur Complete damage. Extensive damage to the James H. Turner Dam poses the greatest risk to downstream population. The earthquake will cause damages to many road segments, bridges, and tunnels in the area. As a result, travel times on these roadways and others will increase significantly. Multiple areas on freeways such as I–680, I–880, and I–580 will have the highest above normal traffic volumes. Several bridges on these freeways will also likely incur Extensive damage. Tunnels in the area will likely have less damage with bores in the Caldecott Tunnel on State Route 24 experiencing only Moderate damage.

National Level Exercise 2011 Draft Planning Overview

Focus: Domestic, non-terrorism; Major Earthquake (specific focus on a catastrophic earthquake in the New Madrid Seismic Zone (NMSZ)) the exercise concept was created in 2006 as a follow-on task to the Federal Emergency Manage Agency (FEMA) NMSZ Catastrophic Planning Initiative. NLE 11 will be a Functional Exercise (FE) that will last approximately four days with a specific focus on the first 72 hours. This exercise is designed to provide FEMA with a crucible to test Administrator Fugate’s mission for the Federal government to make decisions and take action within the first 72 hours of a major disaster that will have positive effect on life saving and life sustaining activities.

UN Miyagi Prefecture Tsunami-Related Standing Water Map

This map illustrates satellite-detected standing bodies of water remaining after the tsunami event over the city of Sendai and affected areas south in Miyagi Prefecture. Flood waters were identified through an analysis of Radarsat-2 satellite data recorded 12 March 2011 with a medium degree of confidence. This is a preliminary analysis & has not yet been validated in the field. It is possible that tsunami-related water bodies areas have been underestimated in areas with high debris levels. Please send ground feedback to UNITAR / UNOSAT.