Two earthquakes wake people up

This USGS map shows the impact of this morning's quake in the East Bay. The map can be found on the USGS website.

By the Daily Post staff

A pair of earthquakes — one in the East Bay and another in Cupertino — jolted some people out of their sleep this morning.

The two quakes struck 55 minutes apart.

The first one struck at 2:39 a.m. in Berkeley near the Claremont Hotel, just south of the UC-Berkeley campus. It was 7.6 miles deep and along the Hayward fault — one of seven fault zones in the Bay Area.

The temblor had a preliminary magnitude of 4.7, but the U.S. Geological Survey has since revised the magnitude to 4.4.

The first one got people out of their beds. Social media posts showed people were awakened some 40 miles to the north and south, but there were no immediate reports of damage or injuries.

The epicenter of the second quake this morning was pinpointed to this location in Cupertino.

The second one, with a 2.6 magnitude, struck at 3:34 a.m. in Cupertino. The USGS pinpointed the epicenter to the 22300 block of Santa Paul Avenue, about 500 feet from Stevens Creek and a quarter mile west of Monta Vista High School.

Jack Boatwright, a geophysicist with the USGS Earthquake Science Center in Menlo Park, said the shaking from the quake “seemed a little weak, about half as strong as what you would expect.”

He said there had been no aftershocks, which he called “a good sign. It may mean less likelihood of a larger earthquake to follow.”