Reported Earthquakes: Week of Sep 14–Sep 20, 2026
USGS-monitored sensors recorded 1742 reported earthquakes across the United States and its territories for the week of September 14 to September 20, 2026, including 177 at magnitude 2.5 or greater. The largest, a magnitude 6.5 event, was recorded near 169 km W of Nikolski, Alaska on September 17 (14:19 UTC).
Every reported earthquake is shown, sized and colored by magnitude on a fixed scale (consistent week to week). Alaska and Hawaii are shown at their own scale — see the note below on why.
State & territory breakdown
| State/territory | Reported | Largest magnitude |
|---|---|---|
| California | 537 | M3.5 |
| Alaska | 523 | M6.5 |
| Puerto Rico | 175 | M4.8 |
| Texas | 109 | M3.3 |
| Hawaii | 90 | M4.1 |
| New Mexico | 79 | M3.2 |
| Utah | 77 | M2.6 |
| Washington | 41 | M2.7 |
| Oklahoma | 32 | M2.6 |
| Nevada | 22 | M3.8 |
| Montana | 15 | M3.6 |
| Wyoming | 12 | M3.4 |
| Oregon | 5 | M2.0 |
| U.S. Virgin Islands | 4 | M3.4 |
| Unresolved (CONUS) | 4 | M3.0 |
| Missouri | 4 | M2.4 |
| Colorado | 3 | M2.0 |
| Tennessee | 3 | M1.8 |
| Idaho | 2 | M1.1 |
| Kansas | 1 | M2.9 |
| Illinois | 1 | M2.4 |
| Georgia | 1 | M2.1 |
| New York | 1 | M1.4 |
| Maine | 1 | M1.4 |
Source: USGS Earthquake Hazards Program (public data). Magnitude 2.5+ is shown on the map as a readable threshold; the total above includes all magnitudes USGS recorded for the week. Reported activity reflects what instruments recorded — it is not a judgment about risk to any specific place. Full unfiltered catalog: USGS Earthquake Map.
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