earthquake san francisco
A one-two earthquakes shook the nerves of San Francisco Bay on Monday, and scientists say the tremors of magnitude 3.5 and 4.0 below the city of El Cerrito were reminders of the dangers in a region seismic known risk.
The double impact - accompanied by two smaller earthquakes - were too small to release energy through a turbulent part of the Hayward Fault. This is the fault line is very likely that the source of the following are the Bay Area "Big One", with a probability of 1 in a break-3 6.7 in the next 30 years, according to the Service U.S. Geological Survey.
Although the surprise Monday morning caused no major damage was a good reminder, even for scientists to prepare - especially when the rising price of gas, the needle is close to "empty".