QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Northwest Harborcreek, PA

No earthquake was likely felt in Northwest Harborcreek in the 24 hours to 11:52 am EST (16:52 UTC). The last one was M 2.3, 8 km (5 mi) SE, at 3:12 am EST on 10 November 2025, estimated intensity III (weak) in town. Every earthquake near Northwest Harborcreek

This page: a magnitude 2.3 earthquake was recorded 8 km (5 mi) southeast of Northwest Harborcreek, PA, at 3:12 am EST on 10 November 2025 (08:12 UTC), 8.3 km deep.

USGS: 7 km SE of Northwest Harborcreek, Pennsylvania

11 km (7 mi) ESE of Erie, PA · 125 km (78 mi) SW of Buffalo, NY

3:12 am EST, Nov 10, 2025 · · 8.3 km deep · released about 85 lb of TNT

10 km30 km60 km120 km N Erie County 13 kmCrawford County 47 kmChautauqua County 50 kmWarren County 60 kmAshtabula County 70 kmVenango County 79 kmForest County 86 kmMercer County 92 kmCattaraugus County 106 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
3:12 am EST on 10 November 2025 ()
Where
8 km (5 mi) southeast of Northwest Harborcreek, PA · earthquakes near Northwest Harborcreek
Magnitude
M 2.3 (ml)
Depth
8.3 km below the surface
Felt
no reports yet
Nearest
Erie County, 13 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 286 days ago

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 36 km (22 mi) from the epicentre. In Northwest Harborcreek, 8 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: Wesleyville, Lawrence Park, Erie, North East, Waterford, Union City.

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.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. 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 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 42.0954, -79.9384. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Erie County, PA 13 km (8 mi) W earthquakes near Erie County
Crawford County, PA 47 km (29 mi) SSW earthquakes near Crawford County
Chautauqua County, NY 50 km (31 mi) ENE earthquakes near Chautauqua County
Warren County, PA 60 km (38 mi) ESE earthquakes near Warren County
Ashtabula County, OH 70 km (43 mi) WSW earthquakes near Ashtabula County
Venango County, PA 79 km (49 mi) S earthquakes near Venango County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.