Reported Earthquakes: Week of Oct 12–Oct 18, 2026
USGS-monitored sensors recorded 1680 reported earthquakes across the United States and its territories for the week of October 12 to October 18, 2026, including 175 at magnitude 2.5 or greater. The largest, a magnitude 5.6 event, was recorded near 43 km NNW of Lake Minchumina, Alaska on October 15 (11:07 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 |
|---|---|---|
| Alaska | 695 | M5.6 |
| California | 495 | M3.4 |
| Hawaii | 130 | M3.1 |
| Utah | 69 | M2.6 |
| Washington | 57 | M3.1 |
| Texas | 54 | M3.5 |
| New Mexico | 38 | M3.6 |
| Puerto Rico | 34 | M3.4 |
| Montana | 30 | M2.1 |
| Nevada | 27 | M3.4 |
| Oklahoma | 24 | M2.8 |
| U.S. Virgin Islands | 6 | M3.2 |
| Unresolved (CONUS) | 5 | M3.0 |
| Wyoming | 4 | M1.4 |
| Idaho | 3 | M2.9 |
| Oregon | 3 | M2.6 |
| Kansas | 1 | M2.7 |
| Colorado | 1 | M2.6 |
| Missouri | 1 | M2.5 |
| Arkansas | 1 | M2.1 |
| Tennessee | 1 | M1.9 |
| Virginia | 1 | M0.3 |
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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