Scientists mystified by ever-rising San Francisco Bay area seismic swarm – 450 quakes in two weeks

sf-quake-swarmOctober 2015SAN FRANCISCO – The earthquake swarms in one San Francisco Bay Area city keeps rising, and according to the US Geological Center’s past historical data, has shattered all previous old records. As of Wednesday, the USGS noted that San Ramon, about 45 miles from San Francisco had experienced 446 quakes, including 86 quakes that were a magnitude of 2.0 or higher, since Oct. 13. A total of 28 earthquakes have been documented alone since Tuesday. San Ramon had previously set a record in 2003 when a swarm of 120 earthquakes struck there over 31 days. MORE