M3.7 Earthquake 33 km ENE of Pedro Bay, Alaska — August 23, 2023
2023-08-23 18:51:52 UTC (2023-08-23) · approx. 8:51 AM UTC-10 local
On August 23, 2023 at 18:51 UTC, a magnitude 3.7 intermediate depth earthquake struck 33 km ENE of Pedro Bay, Alaska, at a depth of 151.2 km and coordinates 59.9407°, -153.5947°.
Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 5.4 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 215 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-153.5947°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.7 earthquake near Pedro Bay, Alaska?
The magnitude 3.7 earthquake that struck 33 km ENE of Pedro Bay, Alaska on August 23, 2023 at 18:51 UTC had a depth of 151.2 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 3.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.7 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak023asybefb). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 23, 2023). M3.7 Earthquake 33 km ENE of Pedro Bay, Alaska — August 23, 2023. Retrieved October 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak023asybefb/