Larry Braile AS-1 Workshop, September, 2008 San Francisco Bay Area Earthquake Ground Motion Simulations

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Presentation transcript:

Larry Braile AS-1 Workshop, September, 2008 San Francisco Bay Area Earthquake Ground Motion Simulations

2004 USGS Map: Earthquakes and Faults in the San Francisco Bay Area

Timeline of Shaking in the San Francisco Bay area (Simulations from Brad Aagaard, USGS) 1.7 seconds: Shaking starts on western edge of the city of San Francisco.

Timeline of Shaking in the San Francisco Bay area 1.7 seconds: Shaking starts on western edge of the city of San Francisco.

Timeline of Shaking in the San Francisco Bay area 2.6 seconds: Strong shaking begins on western edge of San Francisco.

Timeline of Shaking in the San Francisco Bay area 3.4 seconds: Strong shaking begins at San Francisco City Hall.

Timeline of Shaking in the San Francisco Bay area 4.9 seconds: Shaking begins in the city of Oakland.

Timeline of Shaking in the San Francisco Bay area 6.2 seconds: Strong shaking begins in the city of Oakland.

Timeline of Shaking in the San Francisco Bay area 9.0 seconds: Shaking begins in the Palo Alto area.

Timeline of Shaking in the San Francisco Bay area 13.0 seconds: Shaking begins in San Jose and Livermore.

Timeline of Shaking in the San Francisco Bay area 16.0 seconds: Shaking,Santa Cruz. Strong shaking close to Santa Rosa.

Timeline of Shaking in the San Francisco Bay area 21.0 seconds: Strong shaking begins in San Jose

Timeline of Shaking in the San Francisco Bay area 30.0 seconds: Strong shaking has enveloped entire San Francisco Bay area.

Timeline of Shaking in the San Francisco Bay area 1.7 seconds: Shaking starts on western edge of the city of San Francisco. Natural Hazards – Earthquakes

3-D Geologic and Seismic Model of the San Francisco Bay area

San Francisco Bay area earthquake simulations – 1906 San Francisco M7.8 earthquake and 1989 Loma Prieta M6.9 earthquake (from Brad Aagaard, USGS) Main page: Map views (QuickTime movies to download): Close-up views (QuickTime movies to download): Teacher Information (Lessons and teaching resources):