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Wednesday, January 28, 2009

Applied GIS within the Earthquake Hazards Team - USGS Earthquake Seminar Series

The USGS Earthquake Hazards Team will present "Applied GIS Within the Earthquake Hazards Team" at the February 11th USGS Earthquake Seminar Series. MORE

When: February 11, 2009 / 10:30 AM
Where: USGS / 345 Middlefield Road, Menlo Park, CA / Main Auditorium

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Bay Area Earthquake Liquefaction Maps

USGS has released updated earthquake liquefaction maps the the San Francisco Bay Area. MORE

The new USGS maps also contribute to the California Geological Survey’s Seismic Hazard Zone maps.

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Tuesday, January 6, 2009

Study shows massive earthquake could cause Anderson Dam to fail

A study performed for the Santa Clara County Water district indicates that the the largest dam in Santa Clara County could collapse in a major earthquake. DOWNLOAD STUDY

A 6.6 magnitude quake centered directly at Anderson Reservoir near Morgan Hill, or a 7.2 quake centered one mile away, could cause the reservoir's 240-foot-high earthen dam to fail.

In the worst case, a complete failure of Anderson Dam could send a wall of water 35 feet high into downtown Morgan Hill within 14 minutes, and eight feet deep into San Jose within three hours. READ MORE

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