2.0

M2.0 Earthquake 3 km E of Plainville, ConnecticutMay 20, 2025

2025-05-20 18:30:05 UTC (2025-05-20) · approx. 1:30 PM UTC-5 local

Felt by 10 people across nearby locations.

MagnitudeM2.0(ml)
Time18:30 UTC1:30 PM UTC-5
Depth0.0 kmshallow crustal
Coordinates41.672°, -72.819°
Felt by10DYFI responses
Status✓ Reviewed by USGS

On May 20, 2025 at 18:30 UTC, a magnitude 2.0 shallow crustal earthquake struck 3 km E of Plainville, Connecticut, at a depth of 0.0 km and coordinates 41.6718°, -72.8187°. This earthquake was detected by 11 seismic stations with good location accuracy and was assigned a USGS significance rating of 65, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 2.0 releases seismic energy equivalent to roughly 15.1 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 14 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 41.67°, -72.82°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 10 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M2.0 earthquake near 3 km E of Plainville, Connecticut

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
2.0 ml
Depth
0.0 km
shallow crustal
Location
41.6718°N
-72.8187°E
Felt Reports
10
DYFI responses
Community Intensity
3.4
CDI from reports

Technical Information

Event ID
us7000q0gv
Event Type
quarry blast
Status
✓ Reviewed
Significance
65
Stations Used
11
Azimuthal Gap
99.0°
Min Station Distance
0.630°
RMS Residual
0.29 sec
Last Updated
2025-10-26 18:44:37 UTC

Common Questions

How strong was the magnitude 2.0 earthquake near Plainville, Connecticut?

The magnitude 2.0 earthquake that struck 3 km E of Plainville, Connecticut on May 20, 2025 at 18:30 UTC had a depth of 0.0 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 41.6718°, -72.8187°, which is 3 km E of Plainville, Connecticut.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.0 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000q0gv). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, May 20, 2025). M2.0 Earthquake 3 km E of Plainville, ConnecticutMay 20, 2025. Retrieved October 26, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000q0gv/