M5.4 Earthquake 231 km WSW of Port McNeill, Canada — September 28, 2026
2026-09-28 04:41:21 UTC (1 hour ago) · approx. 7:41 PM UTC-9 local
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On September 28, 2026 at 04:41 UTC, a magnitude 5.4 shallow crustal earthquake struck 231 km WSW of Port McNeill, Canada, at a depth of 10.0 km and coordinates 50.0527°, -130.2208°. The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 40 seismic stations with good location accuracy and was assigned a USGS significance rating of 449, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.4 releases seismic energy equivalent to roughly 2 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 3.2 km — 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
Earthquake Details
-130.2208°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.4 earthquake near Port McNeill, Canada?
The magnitude 5.4 earthquake that struck 231 km WSW of Port McNeill, Canada on September 28, 2026 at 04:41 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 50.0527°, -130.2208°, which is 231 km WSW of Port McNeill, Canada.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.4 earthquakes can continue for days to weeks and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000ty2u). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 28, 2026). M5.4 Earthquake 231 km WSW of Port McNeill, Canada — September 28, 2026. Retrieved September 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ty2u/