Earthquake · reviewed by a seismologist
M 3.8mwr
Earthquake near York Harbor, ME
No earthquake was likely felt in York Harbor in the 24 hours to 2:39 am EST (07:39 UTC). The last one was M 2.0, 14 km (8 mi) SE, at 7:57 am EST on 2 February 2025, estimated intensity II (weak) in town; 55 felt reports to USGS. Every earthquake near York Harbor
This page: a magnitude 3.8 earthquake was recorded 10 km (6 mi) southeast of York Harbor, ME, at 10:22 am EST on 27 January 2025 (15:22 UTC), 11 km deep. 42,440 people have reported feeling it to USGS.
USGS: 9 km SE of York Harbor, Maine
89 km (55 mi) NNE of Boston, MA · 53 km (33 mi) NE of Haverhill, MA
- When
- 10:22 am EST on 27 January 2025 ()
- Where
- 10 km (6 mi) southeast of York Harbor, ME · earthquakes near York Harbor
- Magnitude
- M 3.8 (mwr)
- Depth
- 11 km below the surface
- Felt
- 42,440 reports · strongest reported intensity IV
- Measured shaking
- intensity V (ShakeMap)
- Tsunami
- USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
- Nearest
- York County, 41 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 168 days ago
Earthquake alerts for York Harbor, ME
Get a notification in this browser when USGS records an earthquake near York Harbor, ME. No account or email needed.
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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 401 km (249 mi) from the epicentre. In York Harbor, 10 km away, the estimate is intensity IV (light). 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: Kittery Point, New Castle, York Beach, Kittery, Cape Neddick, Portsmouth.
How big was it?
This earthquake released about 7.6 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 22,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 1,000× the energy of this one
- Magna, Utah 2020 M 5.7 710× the energy of this one
- This earthquake M 3.8 about 7.6 tons of TNT
- Around the size people start to feel M 3.0 this one released 16× more
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 since 1900 lists no earthquake of M5 or more within 50 km.
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 43.0657, -70.5707. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| York County, ME | 41 km (25 mi) | N | earthquakes near York County |
| Rockingham County, NH | 44 km (27 mi) | W | earthquakes near Rockingham County |
| Strafford County, NH | 45 km (28 mi) | NW | earthquakes near Strafford County |
| Essex County, MA | 53 km (33 mi) | SSW | earthquakes near Essex County |
| Cumberland County, ME | 85 km (53 mi) | NNE | earthquakes near Cumberland County |
| Belknap County, NH | 86 km (53 mi) | NW | earthquakes near Belknap County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
5 earthquakes have been recorded within 50 km since this one.
- 1.7 2 km NE of Danville, New Hampshire
- 2.1 34 km SE of York Beach, Maine
- 1.6 3 km SSE of Greenland, New Hampshire
- 2.0 13 km SE of York Harbor, Maine
- 2.0 10 km SE of York Harbor, Maine
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.