M3.0 Earthquake 101 km SW of Atka, Alaska — July 30, 2026
2026-07-30 19:38:32 UTC (4 days ago) · approx. 7:38 AM UTC-12 local
On July 30, 2026 at 19:38 UTC, a magnitude 3.0 shallow crustal earthquake struck 101 km SW of Atka, Alaska, at a depth of 22.7 km and coordinates 51.4990°, -175.1470°.
Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-175.1470°E
Technical Information
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Common Questions
How strong was the magnitude 3.0 earthquake near Atka, Alaska?
The magnitude 3.0 earthquake that struck 101 km SW of Atka, Alaska on July 30, 2026 at 19:38 UTC had a depth of 22.7 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 3.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.0 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: aka2026ozjxdl). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 30, 2026). M3.0 Earthquake 101 km SW of Atka, Alaska — July 30, 2026. Retrieved August 3, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026ozjxdl/