Region · live catalogue
Earthquakes in United States
In the last 30 days, 371 earthquakes of magnitude 2.5 or greater were recorded in United States; the largest was a magnitude 5.0 earthquake 122 km W of Fortuna, California, United States on 5 Nov 2026.
Data: USGS, GFZ · updated · sources and licences
- 24 hours
- 222
- all magnitudes
- 7 days
- 83
- M2.5+
- 30 days
- 371
- M2.5+
Seismic record
In United States, the USGS catalogue lists 307 earthquakes of magnitude 6 or more since 1900 and 381 of magnitude 5 or more since 2000, about 14 a year. In the 12 months to 13 Oct 2026 it recorded 5,011 of magnitude 2.5 or more, 129 of them magnitude 4 or more.
The largest since 1900: M9.2 on 28 Mar 1964, 122 km SE of Palmer, Alaska, United States. The most recent of magnitude 5 or more: M5.5 on 6 Oct 2026, 133 km NNW of Kodiak, Alaska, United States.
Counts from the USGS ComCat catalogue (public domain), last compiled 13 Oct 2026. Outside the United States, ComCat is complete from about magnitude 4.5, so smaller local earthquakes may be missing from these counts but appear in the lists below. How these pages are built
Last 24 hours
Earlier this week, magnitude 2.5 and above
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Largest in the last 30 days
| Mag | Location | Time (UTC) |
|---|---|---|
| 5.0mw | 122 km W of Fortuna, California, United States2 agencies | |
| 4.4ml | 114 km ENE of Palmer, Alaska, United States | |
| 4.3ml | 83 km E of La Grande, Oregon, United States2 agencies | |
| 4.3ml | 32 km SE of Kalifornsky, Alaska, United States | |
| 4.0mw | 45 km NNE of Ukiah, California, United States | |
| 3.8ml | 67 km WNW of Pecos, Texas, United States | |
| 3.8ml | 68 km ESE of Homer, Alaska, United States | |
| 3.8ml | 145 km NNW of Meadow Lakes, Alaska, United States | |
| 3.7ml | 129 km S of Sitka, Alaska, United States | |
| 3.7ml | 135 km SSE of Homer, Alaska, United States |
Where they occurred
Largest since 1900
Magnitude 6 and above in United States.
Loading the historical catalogue…
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Questions
How many earthquakes happen in United States?
In the last 30 days, 371 earthquakes of magnitude 2.5 or greater were recorded in United States, 83 of them in the last 7 days. In the last 24 hours, 222 earthquakes of any magnitude were recorded. Most small earthquakes are not felt.
What was the largest recent earthquake in United States?
The largest in the last 30 days was a magnitude 5.0 earthquake 122 km W of Fortuna, California, United States on 5 Nov 2026, at a depth of 10 km.
What is the largest earthquake recorded in United States since 1900?
According to the USGS catalogue, the largest was a magnitude 9.2 earthquake on 28 Mar 1964 (The 1964 Prince William Sound, Alaska Earthquake). Magnitudes of early 20th-century earthquakes are less certain than modern ones.
How deep are earthquakes in United States?
80% of the magnitude 2.5+ earthquakes recorded in United States in the last 30 days were shallower than 70 km. Shallow earthquakes generally cause stronger shaking at the surface than deep ones of the same magnitude.
Where can I get official earthquake information for United States?
For official information, warnings and safety advice, follow USGS Earthquake Hazards Program (https://earthquake.usgs.gov/) and your local civil protection authority. This site compiles agency reports and is not a warning service.
Can earthquakes be predicted?
No. Scientists can estimate how likely strong shaking is in a region over years or decades, but no method predicts the time, place and size of a specific earthquake. Aftershocks are expected after large earthquakes and become less frequent over time.