Overview

• USGS recorded a preliminary magnitude 4.6 quake at 2:56 a.m. with a depth of about 4.8 miles, noting that details may be updated.
• The epicenter was a few blocks from UC Berkeley, with light to moderate shaking reported in Berkeley, Oakland and San Francisco.
• The ShakeAlert early-warning system activated, and MyShake users reported receiving alerts ahead of the tremor.
• The U.S. National Tsunami Warning Center said no tsunami is expected following the earthquake.
• The San Francisco Fire Department reported no known damage or injuries as agencies continue to monitor conditions.