Magnitude 4.3 Earthquake Strikes San Francisco Bay Area

San Francisco shaken by the earthquake at the front

By Meghan Bartels Edited by Andrea Thompson

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

The earthquake hit 1.25 miles in the east-south-east of Berkeley, California, with sea tremors felt as far as Salinas, California, about 100 miles in the south, and Chico, California, about 150 miles in the north. Temblor is no threat to tsunami, according to National Tsunami Warning Center.

The epicenter of the earthquake was approximately 4.7 miles deep, according to a preliminary ratio of the US Geological Survey. The agency’s analysis continues, but the experts temporarily linked the event to 10 other smaller earthquakes, mostly too weak to notice, which rocked the region in the past month.

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The earthquake occurred near the Hayward fault line, which extends on the north side of the Bay of San Francisco southeast of San Jose. The largest known earthquake ever recorded in the area of ​​this flaw was an event of magnitude 6.8 in 1868.

The scale of the earthquake is logarithmic, not linear, so the historical earthquake has released more than 5,600 times more energy than this morning event. In comparison, the 1906 mortal earthquake of San Francisco, which occurred along the San Andreas Faille, was at least a 7.7 magnitude event.

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

Until now, nearly 26,000 people have declared that they had felt the earthquake on Monday thanks to “Have you felt it?” Reporting tool, which brings together ground data on the intensity and effects of earthquakes. If you are in the Bay region – whether you feel the Temblor or not – you can fill out the agency’s form to contribute to the observations.

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