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The Calaveras fault branches off from the Hayward fault in the South Bay and ... some of the stress between these two faults, ...
Sponsored The quakes’ epicenters surrounded the Hayward fault, which spans from San Pablo Bay in the north to Fremont in the south. It runs under the cities of Berkeley, Oakland and Hayward before ...
A 3.6 magnitude earthquake hit near Hayward in the East Bay just before 2 p.m. Thursday, causing a jolt felt as far as San Francisco — the latest in a series of small quakes in the same area.