In the past week, earthquake activity across the United States has remained low, with no significant events reported nationwide according to AllQuakes.com, which tracks confirmed quakes in the region. The United States Geological Survey lists no major shocks in the continental US from March 22 through March 28, 2026, though minor tremors continue in seismically active areas.
A weak magnitude 2.4 earthquake struck Sterling County in western Texas on March 21, about 39 kilometers southeast of Big Spring, as reported by VolcanoDiscovery. Felt lightly by nearby residents, it caused no damage or injuries. In Nevada, a magnitude 1.8 quake hit 16 kilometers northeast of Yerington on March 23, per EarthquakeTrack and USGS data, at a shallow depth of 10 kilometers, with no impacts noted. California saw a preliminary magnitude 2.0 event near Westmorland in Imperial County on March 28, according to the Sacramento Bee, shaking the area briefly without consequences.
Earlier in March, Louisiana experienced unusual activity. On March 5, a magnitude 4.9 quake, the state's second strongest on record and its largest onshore, rattled Red River Parish at a depth of about 5 kilometers, per Archbishop Chapelle High School reports. Four days later, on March 9, four aftershocks from magnitude 3.1 to 4.0 struck northwestern Louisiana near Coushatta, Edgefield, and Carroll between 4:33 and 4:41 a.m., marking the third largest events in state history. Residents reported shaking in homes, but no casualties occurred. Louisiana rarely sees quakes this strong.
Alaska, part of the US, shows a pattern of deeper activity. Geomagnetic EarthWatch notes a sudden uptick in intermediate-depth quakes there recently, alongside a magnitude 6.0 offshore event 119 kilometers southwest of Nikolski on March 29, listed by the Hypothetical Earthquakes Wiki as a doublet with no damage. The USGS confirms a magnitude 6.4 quake 224 kilometers east-southeast of Attu Station earlier in the month.
Worldwide, larger quakes dominate. VolcanoDiscovery reports a magnitude 5.4 off Samoa on March 27, a 6.5 east of Japan's Iwate on March 26, and a 7.5 deep under Tonga on March 24. A 6.7 shook the Northern Mid-Atlantic Ridge on March 21. Experts observe increased deep and intermediate-depth events globally, including in the Indian Ocean and Sea of Okhotsk, per Geomagnetic EarthWatch analysis, but no clear link to US trends emerges.
These US events highlight typical low-level seismicity in the interior, contrasting with Alaska's volcanic zone, with no emerging patterns of escalation in the past seven days.
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