M4.0 Earthquake 130 km WSW of Nikolski, Alaska — May 3, 2022
2022-05-03 23:13:57 UTC (2022-05-03) · approx. 12:13 PM UTC-11 local
On May 3, 2022 at 23:13 UTC, a magnitude 4.0 shallow crustal earthquake struck 130 km WSW of Nikolski, Alaska, at a depth of 45.4 km and coordinates 52.3242°, -170.5070°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-170.5070°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Nikolski, Alaska?
The magnitude 4.0 earthquake that struck 130 km WSW of Nikolski, Alaska on May 3, 2022 at 23:13 UTC had a depth of 45.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000h8dt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, May 3, 2022). M4.0 Earthquake 130 km WSW of Nikolski, Alaska — May 3, 2022. Retrieved July 9, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000h8dt/