Residents of both Northern and Southern California have been on edge this week due to a series of mild earthquakes rocking the state. The most recent tremor was felt on Thursday afternoon and originated 1.5 miles to the east of Hayward, situated in the San Francisco Bay Area. According to the U.S. Geological Survey, the quake registered a preliminary magnitude of 3.4. This seismic activity was preceded by an earthquake occurring shortly after midnight on Tuesday off the coast of the Northern California town of Petrolia. The USGS estimated the quake to be a 4.1 magnitude event, originating approximately 12 miles beneath the Earth’s surface. Fortunately, no reports of damages or injuries were immediately documented following both incidents.
In further seismic events, two significant tremors were recorded on Monday morning. At 9:44 a.m. local time, a 3.6-magnitude earthquake rattled San Bernardino, located around 60 miles to the east of Los Angeles. Just four minutes later, a magnitude-3 aftershock ensued. One observer on X described the main tremor as “small yet forceful.” Thankfully, there were no significant reports of structural damage or casualties resulting from these seismic occurrences. The same region experienced another 3.6 magnitude earthquake late on Monday night, which was felt by numerous individuals in the vicinity, mirroring the previous incidents.
