Earthquake · reviewed by a seismologist
M 2.1mb_lg
Earthquake near Rising Sun, MD
No earthquake was likely felt in Rising Sun in the 24 hours to 3:26 am EST (08:26 UTC). The last one was M 1.7, 4 km (2 mi) S, at 5:54 am EDT on 9 September 2026, estimated intensity II (weak) in town. Every earthquake near Rising Sun
This page: a magnitude 2.1 earthquake was recorded 3 km (2 mi) west of Rising Sun, MD, at 12:41 am EDT on 9 September 2026 (04:41 UTC), 6.2 km deep. 72 people have reported feeling it to USGS.
USGS: 2 km W of Rising Sun, Maryland
89 km (55 mi) WSW of Philadelphia, PA · 43 km (26 mi) SSE of Lancaster, PA
- When
- 12:41 am EDT on 9 September 2026 ()
- Where
- 3 km (2 mi) west of Rising Sun, MD · earthquakes near Rising Sun
- Magnitude
- M 2.1 (mb_lg)
- Depth
- 6.2 km below the surface
- Felt
- 72 reports · strongest reported intensity IV
- Nearest
- Cecil County, 20 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 60 days ago
Earthquake alerts for Rising Sun, MD
Get a notification in this browser when USGS records an earthquake near Rising Sun, MD. 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 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 28 km (17 mi) from the epicentre. In Rising Sun, 3 km away, the estimate is intensity II (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: Oxford, Perryville, Havre de Grace, North East, Charlestown, Aberdeen.
How big was it?
This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
- Magna, Utah 2020 M 5.7 250,000× the energy of this one
- Around the size people start to feel M 3.0 22× the energy of this one
- This earthquake M 2.1 about 43 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 39.6934, -76.0941. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Cecil County, MD | 20 km (12 mi) | SE | earthquakes near Cecil County |
| Harford County, MD | 25 km (15 mi) | SW | earthquakes near Harford County |
| New Castle County, DE | 41 km (25 mi) | ESE | earthquakes near New Castle County |
| Lancaster County, PA | 41 km (25 mi) | NNW | earthquakes near Lancaster County |
| Chester County, PA | 43 km (27 mi) | NE | earthquakes near Chester County |
| Kent County, MD | 50 km (31 mi) | S | earthquakes near Kent County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
1 earthquake has 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
- 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.