UPDATE: A powerful magnitude 4.0 earthquake struck near Santa Rosa, California, on July 15, 2023, at 3:30 p.m., sending shockwaves through the region. Just eight minutes later, a 3.1 magnitude aftershock rattled the area at 3:38 p.m., according to the U.S. Geological Survey (USGS).
The initial quake was centered just three miles from Santa Rosa, approximately four miles from Petaluma, seven miles from Sonoma, and 13 miles from Napa. The aftershock occurred two miles from Santa Rosa and five miles from Petaluma, further alarming residents.
This seismic activity comes amid ongoing concerns about earthquakes in California, where an average of 25 earthquakes with magnitudes between 4.0 and 5.0 are recorded each year. Just ten days prior, a magnitude 3.0 quake was reported in the vicinity, heightening awareness of the region’s seismic risks.
The depth of the initial quake was reported at 1.2 miles, while the aftershock was slightly deeper at 1.4 miles. Residents throughout the Bay Area are urged to stay vigilant and prepared for potential aftershocks.
Did you feel these earthquakes? Your experience matters! The USGS encourages residents to report what they felt to assist with monitoring and research.
For those looking to enhance their preparedness, consider signing up for the Unshaken newsletter. It provides vital tips on earthquake readiness, including essential kits, apps, and expert advice from seismologists like Lucy Jones.
Stay alert as authorities continue to monitor the situation. The community should keep an eye on updates from the USGS as further developments unfold. Share this information with friends and family to ensure everyone remains informed and ready in case of further seismic activity.
