M3.4 Earthquake 55 km NNW of Petersville, Alaska — January 14, 2024
2024-01-14 21:17:35 UTC (2024-01-14) · approx. 11:17 AM UTC-10 local
On January 14, 2024 at 21:17 UTC, a magnitude 3.4 intermediate depth earthquake struck 55 km NNW of Petersville, Alaska, at a depth of 107.4 km and coordinates 62.9260°, -151.3119°.0 The nearest populated place is Y (population 1,260).
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.
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from submitted 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
Population exposure (USGS PAGER)
Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.
| Shaking intensity (MMI) | Description | Population exposed |
|---|---|---|
| MMI 3 | weak | 2,173 |
Earthquake Details
-151.3119°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 55 km NNW of Petersville, Alaska on January 14, 2024 at 21:17 UTC had a depth of 107.4 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.
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Understanding This Data
Magnitude 3.4 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak024ni4ohz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, January 14, 2024). M3.4 Earthquake 55 km NNW of Petersville, Alaska — January 14, 2024. Retrieved March 16, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak024ni4ohz/