Magnitude 4.3 Atrecitos of the earthquake area of ​​the San Francisco Bay

San Francisco shaken by the pred AWN earthquake

By Meghan Bartels Edited by Andrea Thompson

Sleeping residents of the San Francisco de California Bay area were shaken by an earthquake of magnitude 4.3 in the early morning of September 22.

The earthquake hit 1.25 miles east-southeast of Berkeley, California, with tremors as far as Salinas, California, about 100 miles to the south, and Chico, California, about 150 miles to the north. The tremor does not represent any threat of Tsunami, according to Tsunami’s National Warning Center.

The earthquake epicenter had approximately 4.7 miles deep, according to a preliminary report of the United States geological service. The agency’s analysis continues, but experts have tentatively linked the event with another 10 smaller earthquakes, mostly too weak so that people do not realize, that they have shaken the region in the last month.

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The earthquake occurred near the Hayward’s failure, which extends from the north side of the San Francisco Bay to southeast of San José. The largest known earthquake recorded in the area of ​​this fault was an event of magnitude 6.8 in 1868.

The earthquake scale is logarithmic, non -linear, so the historical earthquake launched more than 5,600 times more energy than the event this morning. In comparison, the mortal earthquake of 1906 of San Francisco, which occurred throughout the fault of San Andreas, was at least one event of magnitude 7.7.

Due to its history, Hayward’s failure has been carefully guarded by scientists, who are concerned that the now densely populated region can see much more serious damage the next time a very strong earthquake hits.

Until now, almost 26,000 people have reported that feeling the earthquake on Monday “Did you feel it?” Report toolwhich brings together data on the ground on the intensity and effects of earthquakes. If you are in the bay area, if you felt the tremor or not, you can Complete the agency form to contribute to the observations.

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