United States
Earthquakes in New Hampshire
ShareUSGS has not recorded an earthquake in and around New Hampshire in the last 30 days. The largest ever recorded here is M 5.6, 5 km NNW of Tamworth, New Hampshire, on 1940-12-24.
Nothing recorded in the last 30 days
USGS logged 12 events here in the last year. The historical record is below.
Recent earthquakes in and around New Hampshire
USGS has not located an earthquake in and around New Hampshire in the last 30 days. That is normal for this area: it recorded 12 in the last year.
The largest on record in and around New Hampshire
Since 1900, when the instrumental record becomes usable. The largest is M 5.6 at 5 km NNW of Tamworth, New Hampshire on 1940-12-24: moderate: can damage poorly built structures.
Largest since 1900 USGS
| Magnitude | Location | Date | Depth |
|---|---|---|---|
| M 5.6 | 5 km NNW of Tamworth, New Hampshire | 1940-12-24 | 8.0 km deep |
| M 5.3 | 8 km W of Tamworth, New Hampshire | 1940-12-20 | 10.0 km deep |
| M 4.8 | 29 km S of Lac-Mégantic, Canada | 1973-06-15 | 12.0 km deep |
| M 4.7 | 5 km W of Hollis Center, Maine | 2012-10-16 | 16.1 km deep |
| M 4.5 | 1 km NW of Sanbornton, New Hampshire | 1982-01-19 | 8.0 km deep |
| M 4.0 | 2 km NE of Ossipee, New Hampshire | 1925-10-09 | Not recorded |
How these numbers were counted
Counts include every earthquake of magnitude 1.0 and above that USGS located in and around New Hampshire. The search is a latitude and longitude rectangle covering New Hampshire. No region is a rectangle, so events just outside the border can appear; each row shows the location text USGS published, which names the nearest town. Full method, including why counts from different places are not comparable.
Source: USGS Earthquake Hazards Program (FDSN event service). Retrieved 2026-08-10. Public domain.