Every recorded earthquake within 30 km
Earthquakes near Potomac, MD
No earthquake was likely felt in Potomac in the 24 hours to 5:37 am EST (10:37 UTC). The last one was M 2.5, 37 km (23 mi) ENE, at 5:17 pm EDT on 27 October 2025, estimated intensity II (weak) in town; 1,228 felt reports to USGS.
M 1.8
Latest: 11:22 pm EDT on 24 June 2024 · 24 km (15 mi) ENE of Potomac, MD
The most recent earthquake near Potomac was M 1.8, 24 km (15 mi) ENE of Potomac, MD, at 11:22 pm EDT on 24 June 2024, 6 km deep. 83 people reported feeling it to USGS. The estimated shaking in Potomac was intensity II (weak), felt by some people at rest indoors.
No earthquake of M1.5 or more was recorded within 30 km (19 mi) of Potomac in the last 24 hours.
- Last 24 hours
- 0
- Last 7 days
- 0
- Last 30 days
- 0 · since 2016, about one every 4 years
- Last 12 months
- 0
- Since 2016
- 3 earthquakes of M1.5 or more within 30 km
- Largest since 2016
- M 2.3 on 2 January 2024, 8 km (5 mi) NNE of Potomac, MD
- Reported felt
- 3 of them have felt reports to USGS
USGS · feed checked · newest earthquake in our database · this page · counts are earthquakes of M1.5 or more within 30 km (19 mi) of the town centre; shaking is estimated for the town centre with the intensity equation USGS Did You Feel It? uses
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)
- Earthquakes in Maryland — with the state's activity score
QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.
Earthquake alerts for Potomac, MD
Get a notification in this browser when USGS records an earthquake near Potomac, 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.
The last 30 days
The latest 3
- 1.8 24 km (15 mi) ENE of Potomac, MD · felt by 83
- 2.3 8 km (5 mi) NNE of Potomac, MD · felt by 2,311
- 2.1 29 km (18 mi) NE of Potomac, MD · felt by 774
From the QuakeIndex database, which reads the USGS feed every 30 seconds and holds the USGS catalogue for the US from 2016 (M1.5+). Times are Potomac time. Distances are from the town centre. Quakes USGS named after Potomac are listed even when they are further out.
Show these earthquakes on your own site: a free card with the latest quakes near Potomac, for a local news site, school or neighborhood page.
On the map
The white circle is Potomac; dots are the 3 most recent earthquakes within 30 km. Map © OpenStreetMap contributors.
Estimated shaking in Potomac
The strongest shaking in Potomac from a quake since 2016 is estimated at intensity III (weak), from the M 2.3 on 2 January 2024, 8 km away. Intensity II and III are felt by some people at rest indoors; IV by most people indoors; V and above wakes sleepers and moves objects.
| Magnitude | When | Distance | Shaking in Potomac (est.) |
|---|---|---|---|
| M 2.3 | 8 km | III · Weak · felt by 2,311 | |
| M 2.1 | 29 km | II · Weak · felt by 774 | |
| M 1.8 | 24 km | II · Weak · felt by 83 |
An estimate for the town centre from magnitude, depth and distance, with the intensity equation USGS Did You Feel It? uses (Atkinson & Wald, 2007), on the Modified Mercalli scale. 1 of these reaches intensity II or more in town, where people at rest start to notice. Ground conditions change it street by street. It describes the past, not a hazard.
Before 2016
The USGS record since 1900 lists no earthquake of M5 or more within 50 km of Potomac.
USGS ComCat, M5+ from 1900 to 2015. This is the record, not a forecast.
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
QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.