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Bay Area Earthquake Hayward Fault
The Hayward fault where the quake shook lies beneath a highly populated area in the Bay—and the next "big one" could be a magnitude 6.8 to 7 earthquake. This fault zone runs from San Pablo Bay in the north to Fremont in the south—passing through Berkeley, Oakland, Hayward and Fremont.
Update | An earthquake struck the Bay Area early Thursday morning along a fault line that U.S. Geological Survey scientists have called a “tectonic time bomb.”
A magnitude 4.4 earthquake shook up the San Francisco Bay Area early Thursday. More than 9.8 million people were estimated to be in the area of the shaking.
The Hayward Fault Zone is a geologic fault zone capable of generating destructive earthquakes.This fault is about 74 mi (119 km) long, situated mainly along the western base of the hills on the east side of San Francisco Bay.
Bay Area earthquake history. Since 1836, there have been five earthquakes in the San Francisco Bay Area with a magnitude of 6.75 or higher.
Recent earthquakes in the Bay Area, California and world from the USGS
Magnitude 4.4 earthquake centered on the Hayward fault near the UC-Berkeley campus jolts the Bay Area
The latest San Francisco earthquake reports and news, plus how to prepare.
Interactive Fault Rupture Map. The California Geological Survey publishes maps of the active faults in the Bay Area that reach the surface as part of its work to implement the requirements of the Alquist-Priolo Earthquake Fault Zone Act.
A 4.4 magnitude earthquake struck early Thursday in Berkeley, California, according to a preliminary report from the US Geological Survey, jolting some residents of the densely populated San Francisco Bay area awake in their beds.