M2.0 Earthquake 5 km WSW of Altamont, New York — March 20, 2021
2021-03-20 22:39:12 UTC (2021-03-20) · approx. 5:39 PM UTC-5 local
Felt by 17 people across nearby locations.
On March 20, 2021 at 22:39 UTC, a magnitude 2.0 shallow crustal earthquake struck 5 km WSW of Altamont, New York, at a depth of 14.9 km and coordinates 42.6828°, -74.0989°.
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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 17 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
-74.0989°E
Technical Information
Common Questions
How strong was the magnitude 2.0 earthquake near Altamont, New York?
The magnitude 2.0 earthquake that struck 5 km WSW of Altamont, New York on March 20, 2021 at 22:39 UTC had a depth of 14.9 km. For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 42.6828°, -74.0989°, which is 5 km WSW of Altamont, New York.
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: us7000dlb6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, March 20, 2021). M2.0 Earthquake 5 km WSW of Altamont, New York — March 20, 2021. Retrieved June 2, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000dlb6/