https://www.mercurynews.com/2023/03/28/bay-area-3-5-magnitude-earthquake-and-two-aftershocks-jolt-peninsula/ > A 3.5 magnitude earthquake briefly shook the Peninsula on Tuesday morning followed by a pair of smaller aftershocks, according to the United States Geological Survey. > The main quake’s epicenter was on the foothills near the Pacifica neighborhood of Vallemar. It occurred at 6:01 a.m. and was felt in parts of San Jose and the East Bay, according to the agency.