Earthquakes in the United States — March 2026

8825 earthquakes were recorded in the United States during March 2026, an average of 284.7 per day.

112 reached magnitude 4 or above and 17 reached magnitude 5 or above. The average focal depth was 17 km.

The month's largest event in the United States was a magnitude 6.4 earthquake near Attu Station, United States on 04 March 2026 at 17:54 UTC. A magnitude 6.4 earthquake radiates roughly 60,036 tons of TNT equivalent in seismic energy.

That is close to the the United States monthly average of 7168 events over the period we cover, and up from the 7183 recorded the previous month.

93% of events here are shallow (under 70 km), 7% intermediate (70–300 km) and 0% deep-focus (over 300 km). Almost everything here is crustal. That is characteristic of transform faulting or continental deformation rather than subduction — and it means shaking at the surface is strong for the magnitudes involved.

By band, the catalogue holds 14 in the magnitude -2 range, 150 in the magnitude -1 range, 2068 in the magnitude 0 range, 4254 in the magnitude 1 range, 1848 in the magnitude 2 range, 374 in the magnitude 3 range.

Activity peaked on 27 March, when 391 events were recorded.

13 event(s) this month carry a USGS link to NOAA tsunami information; the flag does not indicate whether a tsunami occurred.

The month's largest events were M6.4 near Attu Station, United States on 04 March at 10 km; M5.7 near Attu Station, United States on 06 March at 9 km; M5.6 near Attu Station, United States on 06 March at 25 km.

That is 23% above the 7168 events the United States averages per month across the 21 months on record.