Earthquakes in Pennsylvania
The most recent earthquake of M2.5 or more in Pennsylvania was M 2.8, 10 km NW of Forksville, Pennsylvania, at 4:04 pm EDT on 10 June 2025, 8 km deep. 37 people reported feeling it to USGS. 4 smaller earthquakes have been recorded in Pennsylvania since.
No earthquake of M1.5 or more was recorded in Pennsylvania in the last 24 hours.
- Last 24 hours
- 0
- Last 7 days
- 0
- Last 30 days
- 0 · since 2016, about one every 4 months
- Last 12 months
- 2 · largest M 1.8 on 22 November 2025
- Since 2016
- 36 earthquakes of M1.5 or more
- Largest since 2016
- M 4.8 on 5 April 2024, 2024 Tewksbury, New Jersey Earthquake
Latest quake, 24 hours and 7 days: the QuakeIndex database, which reads USGS every 30 seconds, read at ; 30 days and 12 months: the QuakeIndex catalogue, counted to · earthquakes of M1.5 or more in Pennsylvania, where USGS names the state in the location
Earthquakes are rare here
157 earthquakes of M1.5 or larger have been recorded in Pennsylvania in 10 years, and most weeks have none. There have been none in the last 7 days.
With so few, a QuakeIndex score — this week as a percentile of Pennsylvania's own weeks — would only say whether anything happened at all, so none is shown. That is a statement about Pennsylvania, not about our data.
USGS catalogue · updated
If you felt one
- Was that an earthquake? — checks what was recorded near you in the last hour
- Report what you felt to USGS — reports go to USGS, not to us, and they are what produces the intensity maps
- Expect aftershocks, and be ready to Drop, Cover, and Hold On if you feel one; if you are in a damaged building, go outside and move away from it (Ready.gov, FEMA; what to do during and after an earthquake)
QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.
The last 30 days
Show these earthquakes on your own site: a free card with this strip and the latest quakes in Pennsylvania, for a local news site, school or neighborhood page.
Live · last 7 days
Latest earthquakes in Pennsylvania
None in Pennsylvania in the latest snapshot we hold; the full 7 days load from USGS as this page opens.
Source USGS · snapshot of
The last 7 days on the map
Open the full map — zoom anywhere, or find your own location →
Largest on record in and around Pennsylvania
| Magnitude | When | Where |
|---|---|---|
| M 4.8 | 2024 Tewksbury, New Jersey Earthquake | |
| M 3.7 | 7 km WSW of Gladstone, New Jersey | |
| M 3.4 | 9 km N of Blain, Pennsylvania | |
| M 3.0 | 3 km NE of Ranson, West Virginia | |
| M 2.9 | 5 km WSW of Bolivar, Pennsylvania | |
| M 2.9 | 7 km WSW of Gladstone, New Jersey | |
| M 2.9 | 6 km E of Califon, New Jersey | |
| M 2.8 | 5 km ESE of East Berlin, Pennsylvania |
From the QuakeIndex catalogue, built from the USGS FDSN event service · inside a rectangle drawn around Pennsylvania, which takes in some ground over its borders.
Before 2016: the largest in Pennsylvania since 1900
The USGS record from 1900 to 2015 lists one earthquake of M5 or more in and just off Pennsylvania:
USGS ComCat, M5+ from 1900 to 2015, each epicentre counted for the state whose nearest county it is. Epicentres of early earthquakes are estimates. This is the record, not a forecast.
The most active counties in Pennsylvania
| County | M1.5+ in 10 years | This week |
|---|---|---|
| Montgomery County | 122 | Too quiet to score |
| Lehigh County | 118 | Too quiet to score |
| Philadelphia County | 118 | Too quiet to score |
| Pike County | 118 | Too quiet to score |
| Delaware County | 31 | Too quiet to score |
| Chester County | 21 | Too quiet to score |
Counted within each county page's own radius from the QuakeIndex catalogue (USGS, M1.5+, ten years).
Counties in Pennsylvania
- Adams County
- Allegheny County
- Armstrong County
- Beaver County
- Bedford County
- Berks County
- Blair County
- Bradford County
- Bucks County
- Butler County
- Cambria County
- Cameron County
- Carbon County
- Centre County
- Chester County
- Clarion County
- Clearfield County
- Clinton County
- Columbia County
- Crawford County
- Cumberland County
- Dauphin County
- Delaware County
- Elk County
- Erie County
- Fayette County
- Forest County
- Franklin County
- Fulton County
- Greene County
- Huntingdon County
- Indiana County
- Jefferson County
- Juniata County
- Lackawanna County
- Lancaster County
- Lawrence County
- Lebanon County
- Lehigh County
- Luzerne County
- Lycoming County
- McKean County
- Mercer County
- Mifflin County
- Monroe County
- Montgomery County
- Montour County
- Northampton County
- Northumberland County
- Perry County
- Philadelphia County
- Pike County
- Potter County
- Schuylkill County
- Snyder County
- Somerset County
- Sullivan County
- Susquehanna County
- Tioga County
- Union County
- Venango County
- Warren County
- Washington County
- Wayne County
- Westmoreland County
- Wyoming County
- York County
Be ready
Earthquakes cannot be predicted, here or anywhere, so the useful step is the one taken beforehand. The advice below is from the agencies responsible for it.
- Ready.gov: earthquakes (FEMA) — what to do before, during and after, including Drop, Cover, and Hold On
- Build a kit (FEMA) — water, food and supplies for several days; our summary
- USGS: preparedness — the hazard behind the advice, from the agency that records every quake on this page
- The Great ShakeOut — the yearly earthquake drill, with material for homes, schools and workplaces