Earthquake Risk in Maryland
Maryland has low seismic risk. The state occasionally experiences small earthquakes and can feel shaking from events in the central Virginia seismic zone or along the mid-Atlantic coast. The Chesapeake Bay impact structure may contribute to localized seismicity.
The largest earthquake recorded in Maryland was a magnitude 5.8 11 km SSW of Mineral, Virginia on August 23, 2011. Maryland has 26 notable earthquakes on record since 2004, with the most recent being a M2.5 on October 27, 2025.
Notable Earthquakes
26
Recorded in or near Maryland (since 2004)
Largest Earthquake
M5.8
11 km SSW of Mineral, Virginia (Aug 2011)
Most Recent
M2.5
Oct 27, 2025
Notable Earthquakes
Significant earthquakes recorded in or near this state.
| Magnitude | Location | Depth | Date |
|---|---|---|---|
| M5.8 | 11 km SSW of Mineral, Virginia | 6.0 km | Aug 23, 2011 |
| M4.5 | 8 km SW of Mineral, Virginia | 6.8 km | Aug 25, 2011 |
| M4.2 | 11 km SSW of Mineral, Virginia | 0.0 km | Aug 24, 2011 |
| M4.1 | 3 km NNE of Little Creek, Delaware | 9.9 km | Nov 30, 2017 |
| M3.6 | 5 km NNW of Barnesville, Maryland | 7.0 km | Jul 16, 2010 |
| M3.4 | 7 km SSW of Mineral, Virginia | 3.4 km | Sep 1, 2011 |
| M3.1 | 9 km SSE of Louisa, Virginia | 3.2 km | Jan 30, 2012 |
| M3.0 | 3 km NE of Ranson, West Virginia | 4.7 km | Jan 17, 2016 |
| M3.0 | 9 km S of Louisa, Virginia | 4.0 km | Oct 12, 2011 |
| M3.0 | 13 km S of Louisa, Virginia | 8.7 km | Mar 26, 2012 |
| M2.8 | 6 km SW of Mineral, Virginia | 4.9 km | Mar 15, 2015 |
| M2.8 | 9 km SSW of Mineral, Virginia | 0.1 km | Aug 23, 2011 |
| M2.8 | 3 km ESE of Pennsville, New Jersey | 5.0 km | Jul 1, 2009 |
| M2.7 | 10 km S of Louisa, Virginia | 3.7 km | Aug 29, 2011 |
| M2.7 | 12 km S of Louisa, Virginia | 2.8 km | Feb 19, 2012 |
| M2.7 | 10 km S of Louisa, Virginia | 7.9 km | Feb 3, 2020 |
| M2.6 | 29 km E of Greenbackville, Virginia | 11.2 km | Feb 9, 2023 |
| M2.6 | 2 km SE of Woodlawn, Maryland | 2.5 km | Jun 25, 2021 |
| M2.6 | 7 km SE of Mineral, Virginia | 6.1 km | Aug 25, 2011 |
| M2.6 | 11 km S of Louisa, Virginia | 4.7 km | Sep 17, 2011 |
| M2.6 | 13 km SSW of Mineral, Virginia | 7.2 km | Aug 30, 2011 |
| M2.5 | 4 km E of Riverside, Maryland | 8.5 km | Oct 27, 2025 |
| M2.5 | 10 km SSE of Louisa, Virginia | 4.9 km | Jan 18, 2012 |
| M2.5 | 10 km S of Louisa, Virginia | 3.7 km | Oct 5, 2011 |
| M2.5 | 7 km SSW of Mineral, Virginia | 1.2 km | Jan 18, 2012 |
| M2.5 | 8 km SW of Mineral, Virginia | 5.2 km | Sep 5, 2011 |
Cities in Maryland
Explore More
All States
AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming