A 3.0 magnitude earthquake struck near San Antonio, Texas, on Monday morning, adding to a series of tremors in the area recently. This quake occurred in Wilson County, south of San Antonio, which has a growing population of nearly 1.5 million. Recent months have seen an uptick in seismic activity, including a 4.5 magnitude earthquake in January. USGS indicated the latest earthquake was along gulf-margin normal faults created by geological movements. While previous assessments deemed the risk of significant quakes low, the recent history suggests a change in seismic patterns in South Texas.
On January 29, a near-historic magnitude 4.5 earthquake was felt in the city, followed by a 3.6 tremor two days later. The 4.5 earthquake was the third-strongest quake in South Texas history - behind a 4.8 magnitude earthquake in 2011 and a 4.7 quake in February 2024.
Seismic activity above 2.5 in magnitude can often be felt and cause minor damage. The latest earthquake in South Texas took place right along the gulf-margin normal faults.
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