Los Angeles, CA — Residents across Southern California felt a series of three earthquakes early Wednesday morning, following a similar tremor the previous afternoon. The U.S. Geological Survey (USGS) confirmed that, so far, no injuries or damage have been reported.
Series of Early-Morning Quakes
The first quake, a magnitude 3.5, struck at 1:03 a.m. local time about 3 miles southeast of Ontario at a depth of roughly 4 miles. Just over 10 minutes later, another magnitude 3.5 quake hit in nearly the same location.
A third tremor, measuring magnitude 3.7, occurred about an hour later a few miles north of Lytle Creek, registering at a depth of 6.5 miles.
Shaking was reported in Riverside, San Bernardino, and surrounding areas. All quakes were relatively shallow, which can make shaking more noticeable at the surface.
Follows Tuesday Afternoon Quake in Rialto
These events came less than 12 hours after a magnitude 3.5 earthquake rattled the Rialto area on Tuesday afternoon. While small-to-moderate quakes like these are common in California, the clustering of multiple events within a short period often heightens public concern.
The USGS is monitoring the situation to determine if these are foreshocks, part of an aftershock sequence, or unrelated seismic events.
East Coast Seismic Activity Also Reported
Interestingly, earthquake activity this week hasn’t been limited to the West Coast. On Tuesday, a magnitude 2.7 quake in New Jersey was felt across parts of the New York City metropolitan area. Just last weekend, the state also experienced a magnitude 3.0 tremor felt across the region.
What to Do During an Earthquake
The California Office of Emergency Services (Cal OES) reminds residents to stay prepared for seismic events:
- Drop, Cover, and Hold On — Get low to avoid being knocked over, take cover under sturdy furniture, and hold on until shaking stops.
- Stay Indoors if you are inside — Avoid doorways and windows.
- Move to Open Space if outside — Steer clear of buildings, trees, and power lines.
- Prepare an Earthquake Kit — Include water, food, flashlight, batteries, and first aid supplies.
For those in multi-story buildings, avoid using elevators and be aware of potential aftershocks.
Did you feel any of these early-morning quakes? Share your experience in the comments below.
