A magnitude 3.9 earthquake shook Northern California on Monday evening at 7:46 p.m. The U.S. Geological Survey reported that the quake was centered less than a mile from Dublin, a city in Alameda County.
The tremor was felt in several nearby areas, including Pleasanton, San Ramon, and Castro Valley, all located within a mile of the epicenter. Residents in Hayward, just two miles away, also experienced the shaking. Reports indicate that there was moderate shaking in Dublin and near Concord, which can lead to very light damage. People in larger cities like San Francisco, Fremont, and Richmond noted weaker tremors.
The earthquake struck at a depth of 7.3 miles. In the past ten days, there has been one other earthquake of magnitude 3.0 or greater in the vicinity. California and Nevada typically see an average of 25 earthquakes each year with magnitudes between 4.0 and 5.0, based on data collected over the past three years.
The shaking prompted many residents to share their experiences, and the USGS encouraged people to report what they felt. Earthquakes are a common occurrence in this region, and they serve as a reminder for residents to be prepared for seismic activity.