A 3.4-magnitude earthquake struck the Redlands area of Southern California on Friday evening. The Inland Empire is currently experiencing a concentrated cluster of minor seismic activity. There are no immediate reports of structural damage or injuries.
The U.S. Geological Survey reported the tremor hit at exactly 6:40 p.m. local time. The epicenter was located roughly four miles south-southwest of Redlands. It was a relatively shallow event. Data shows the quake struck at a depth of about 2.1 miles.
Tracking the Inland Empire Seismic Swarm
This evening disturbance is not an isolated incident. It marks the second notable tremor to rattle the immediate region on Friday alone. A 3.1-magnitude quake occurred earlier that morning at 5:53 a.m.
The ground has been shifting throughout the week. Wednesday saw a separate 3.3-magnitude disturbance in the same vicinity. Experts tracking earth science data have not indicated that this swarm is a precursor to a major fault rupture, according to local coverage detailing the ongoing pattern of minor seismic activity along the Riverside-San Bernardino county line.
The USGS continues to monitor the region for potential aftershocks.