M3.5 Earthquake 52 km E of Pedro Bay, Alaska — October 19, 2026
2026-10-19 08:03:46 UTC (1 hour ago) · approx. 10:03 PM UTC-10 local
On October 19, 2026 at 08:03 UTC, a magnitude 3.5 intermediate depth earthquake struck 52 km E of Pedro Bay, Alaska, at a depth of 125.8 km and coordinates 59.8210°, -153.1770°.
Physical scale: An earthquake of magnitude 3.5 releases seismic energy equivalent to roughly 2.7 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 157 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-153.1770°E
Technical Information
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Common Questions
How strong was the magnitude 3.5 earthquake near Pedro Bay, Alaska?
The magnitude 3.5 earthquake that struck 52 km E of Pedro Bay, Alaska on October 19, 2026 at 08:03 UTC had a depth of 125.8 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 3.5 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.5 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: aka2026uscmes). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, October 19, 2026). M3.5 Earthquake 52 km E of Pedro Bay, Alaska — October 19, 2026. Retrieved October 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026uscmes/