M4.3 Earthquake 94 km SE of False Pass, Alaska — July 14, 2026
2026-07-14 16:28:40 UTC (4 hours ago) · approx. 5:28 AM UTC-11 local
On July 14, 2026 at 16:28 UTC, a magnitude 4.3 shallow crustal earthquake struck 94 km SE of False Pass, Alaska, at a depth of 44.0 km and coordinates 54.1573°, -162.5820°. The earthquake was reported felt by 2 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 3.3 (light). The nearest populated place is King Cove (population 1,238).
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.4 mainshock that occurred 2 hours ago 90 km SSE of False Pass, Alaska. Since the mainshock, the USGS has recorded 7 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
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 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
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 |
|---|
Earthquake Details
-162.5820°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near False Pass, Alaska?
The magnitude 4.3 earthquake that struck 94 km SE of False Pass, Alaska on July 14, 2026 at 16:28 UTC had a depth of 44.0 km. It was felt by 2 people with maximum shaking intensity of MMI 3.3 (light). For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.4 one earlier?
No. This magnitude 4.3 earthquake is an aftershock of the larger magnitude 5.4 mainshock that occurred earlier 90 km SSE of False Pass, Alaska. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000t0ej). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 14, 2026). M4.3 Earthquake 94 km SE of False Pass, Alaska — July 14, 2026. Retrieved July 14, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t0ej/