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UPDATE: More Earthquakes Jolt East Bay Wednesday Morning

The first 3.6 magnitude tremor originated three miles northeast of San Leandro Tuesday night, with several more tremors following into Wednesday morning.

A 3.6 magnitude earthquake shook the East Bay again Wednesday morning, according to the U.S. Geological Survey.

The tremor, which hit at shortly before 10 a.m., was centered three miles northeast of San Leandro along the Hayward fault. Last night's earthquake of the same magnitude originated in the same area at 11:36 p.m.

Both quakes had a depth of 5.7 miles, according to USGS.

Find out what's happening in San Leandrowith free, real-time updates from Patch.

No serious injuries or damage have been reported.

USGS has also measured several small aftershocks, including a 2.3 magnitude quake at 11:41 p.m., a 1.5 magnitude aftershock just after 1:30 a.m. and a 1.8 magnitude tremor at about 4 a.m.

Find out what's happening in San Leandrowith free, real-time updates from Patch.

Central California was also hit by a 4.2-magnitude earthquake just before 5 a.m. Wednesday with an epicenter about nine miles southeast of Mammoth Lakes, according to USGS.

Wednesday's earthquake came hours after an unusual 5.8-magnitude tremor rattled the East Coast an estimated 100 miles southwest of Washington, D.C.

Bay Area residents can learn more about making an emergency plan, building a disaster supply kit, and other preparations at www.72hours.org.

Nika Megino contributed to this story.

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