Earthquake · reviewed by a seismologist
M 2.3mb_lg
Earthquake near Wolfeboro, NH
No earthquake was likely felt in Wolfeboro in the 24 hours to 7:33 am EST (12:33 UTC). The last one was M 2.0, 20 km (13 mi) S, at 4:44 pm EDT on 14 April 2025, estimated intensity II (weak) in town; 25 felt reports to USGS. Every earthquake near Wolfeboro
This page: a magnitude 2.3 earthquake was recorded 6 km (4 mi) northeast of Wolfeboro, NH, at 11:59 pm EDT on 23 May 2022 (03:59 UTC), 1.3 km deep. 56 people have reported feeling it to USGS.
USGS: 5 km NE of Wolfeboro, New Hampshire
- When
- 11:59 pm EDT on 23 May 2022 ()
- Where
- 6 km (4 mi) northeast of Wolfeboro, NH · earthquakes near Wolfeboro
- Magnitude
- M 2.3 (mb_lg)
- Depth
- 1.3 km below the surface
- Felt
- 56 reports · strongest reported intensity V
- Nearest
- Belknap County, 25 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 655 days ago
Earthquake alerts for Wolfeboro, NH
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 37 km (23 mi) from the epicentre. In Wolfeboro, 6 km away, the estimate is intensity III (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Earthquakes near other towns within 30 km: Ossipee, Tuftonboro, Wakefield, Sanbornville, New Durham, Effingham.
How big was it?
This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
- Magna, Utah 2020 M 5.7 130,000× the energy of this one
- Around the size people start to feel M 3.0 11× the energy of this one
- This earthquake M 2.3 about 85 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 5.6 5 km NNW of Tamworth, New Hampshire · 34 km NNW of this epicentre
- 5.3 8 km W of Tamworth, New Hampshire · 34 km NNW of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 43.6151, -71.1512. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Belknap County, NH | 25 km (15 mi) | WSW | earthquakes near Belknap County |
| Carroll County, NH | 28 km (18 mi) | N | earthquakes near Carroll County |
| Strafford County, NH | 37 km (23 mi) | SSE | earthquakes near Strafford County |
| York County, ME | 44 km (27 mi) | ESE | earthquakes near York County |
| Merrimack County, NH | 55 km (34 mi) | SW | earthquakes near Merrimack County |
| Grafton County, NH | 65 km (41 mi) | WNW | earthquakes near Grafton County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
13 earthquakes have been recorded within 50 km since this one.
- 1.6 2 km SW of Center Sandwich, New Hampshire
- 1.9 4 km ESE of Northfield, New Hampshire
- 1.9 8 km ENE of Lake Arrowhead, Maine
- 1.5 6 km SE of New Hampton, New Hampshire
- 2.0 5 km S of Alton, New Hampshire
- 2.2 4 km NW of Gilford, New Hampshire
- 1.9 3 km WSW of Dayton, Maine
- 2.0 2 km WNW of Loudon, New Hampshire
- 1.5 6 km SE of Newfield, Maine
- 1.8 3 km SW of Center Sandwich, New Hampshire
- 2.9 4 km SW of Center Sandwich, New Hampshire
- 1.9 5 km SW of New Durham, New Hampshire
- 2.3 5 km NW of Laconia, New Hampshire
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.