M3.1 Earthquake 62 km ENE of Pedro Bay, Alaska — June 18, 2024
2024-06-18 21:29:34 UTC (2024-06-18) · approx. 11:29 AM UTC-10 local
On June 18, 2024 at 21:29 UTC, a magnitude 3.1 intermediate depth earthquake struck 62 km ENE of Pedro Bay, Alaska, at a depth of 123.5 km and coordinates 59.9589°, -153.0381°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
-153.0381°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Pedro Bay, Alaska?
The magnitude 3.1 earthquake that struck 62 km ENE of Pedro Bay, Alaska on June 18, 2024 at 21:29 UTC had a depth of 123.5 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 3.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak0247ti1e13). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, June 18, 2024). M3.1 Earthquake 62 km ENE of Pedro Bay, Alaska — June 18, 2024. Retrieved August 30, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak0247ti1e13/