M3.8 Earthquake 195 km WNW of Adak, Alaska — May 19, 2022
2022-05-19 18:03:51 UTC (2022-05-19) · approx. 6:03 AM UTC-12 local
On May 19, 2022 at 18:03 UTC, a magnitude 3.8 intermediate depth earthquake struck 195 km WNW of Adak, Alaska, at a depth of 210.6 km and coordinates 52.3740°, -179.3663°.
Physical scale: An earthquake of magnitude 3.8 releases seismic energy equivalent to roughly 7.6 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 252 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-179.3663°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.8 earthquake near Adak, Alaska?
The magnitude 3.8 earthquake that struck 195 km WNW of Adak, Alaska on May 19, 2022 at 18:03 UTC had a depth of 210.6 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.8 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.8 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000hmfg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, May 19, 2022). M3.8 Earthquake 195 km WNW of Adak, Alaska — May 19, 2022. Retrieved July 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hmfg/