Southern California faced multiple earthquakes with magnitudes of 3.5 to 3.7 within an hour, beginning around 1:15am PT. The most intense quake struck around 2am PT, roughly 13 miles from Rancho Cucamonga. Reports indicate over 2,000 residents felt the tremors, primarily from Los Angeles. These earthquakes followed a recent magnitude 3.5 quake in the Rialto area. Experts suggest the swarm originated from shallow, left-lateral movements on smaller faults, as opposed to the significant San Jacinto or San Andreas fault lines.
Southern California has witnessed multiple earthquakes in a short span, with magnitudes ranging from 3.5 to 3.7. Over 2,000 people felt the tremors.
The strongest quake, a magnitude 3.7, occurred around 2am PT, 13 miles outside Rancho Cucamonga, prompting widespread reports of shaking.
Seismic activity in the region is linked to shallow, left-lateral motion along smaller fault strands near the San Jacinto and Sierra Madre fault lines.
The latest earthquakes followed a magnitude 3.5 quake that affected the Rialto area just a day prior, indicating increased seismic activity.
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