M3.4 Earthquake 67 km NNE of Petersville, Alaska — June 21, 2024
2024-06-21 21:23:53 UTC (2024-06-21) · approx. 11:23 AM UTC-10 local
On June 21, 2024 at 21:23 UTC, a magnitude 3.4 intermediate depth earthquake struck 67 km NNE of Petersville, Alaska, at a depth of 112.1 km and coordinates 63.0912°, -150.4918°.
Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 2 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-150.4918°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.4 earthquake near Petersville, Alaska?
The magnitude 3.4 earthquake that struck 67 km NNE of Petersville, Alaska on June 21, 2024 at 21:23 UTC had a depth of 112.1 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 3.4 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.4 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak0247ygm6q1). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, June 21, 2024). M3.4 Earthquake 67 km NNE of Petersville, Alaska — June 21, 2024. Retrieved August 30, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak0247ygm6q1/