M2.8 Earthquake 6 km W of Gardiner, Maine — July 28, 2024
2024-07-28 18:50:18 UTC (2024-07-28) · approx. 1:50 PM UTC-5 local
Felt by 1,226 people across a wide area.
On July 28, 2024 at 18:50 UTC, a magnitude 2.8 shallow crustal earthquake struck 6 km W of Gardiner, Maine, at a depth of 8.1 km and coordinates 44.2341°, -69.8606°. This earthquake was detected by 27 seismic stations with good location accuracy and was assigned a USGS significance rating of 531, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 2.8 releases seismic energy equivalent to roughly 239 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 52 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1,226 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-69.8606°E
Technical Information
Common Questions
How strong was the magnitude 2.8 earthquake near Gardiner, Maine?
The magnitude 2.8 earthquake that struck 6 km W of Gardiner, Maine on July 28, 2024 at 18:50 UTC had a depth of 8.1 km. For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 44.2341°, -69.8606°, which is 6 km W of Gardiner, Maine.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.8 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us6000ngj3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, July 28, 2024). M2.8 Earthquake 6 km W of Gardiner, Maine — July 28, 2024. Retrieved September 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000ngj3/