San Francisco Bay Area M4.4 Quake Felt, But No Damage Reported
San Francisco Bay Area residents were shaken out of their slumber by a magnitude 4.4 earthquake that was felt over a wide area but caused no major damage on Thursday.
The quake struck at 2:39 a.m. about 2 miles from Berkeley, just across the bay from San Francisco, according to the U.S. Geological Survey. The magnitude was revised after it was initially reported as magnitude 4.5. It happened at a depth of 8 miles.
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.
Bay Area Rapid Transit said it had checked tracks for damage and found no problems. Early delays in train service were cleared up by 5:30 a.m., the agency said.
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 told the Chronicle that by 4:15 a.m., there had been no aftershocks, which he called “a good sign. It may mean less likelihood of a larger earthquake to follow.”