M5.2 Earthquake 190 km WSW of Port McNeill, Canada — September 28, 2026
2026-09-28 09:13:39 UTC (1 hour ago) · approx. 12:13 AM UTC-9 local
Aftershock of the M5.4 mainshock.
On September 28, 2026 at 09:13 UTC, a magnitude 5.2 shallow crustal earthquake struck 190 km WSW of Port McNeill, Canada, at a depth of 10.0 km and coordinates 50.1710°, -129.6785°. This earthquake was detected by 92 seismic stations with good location accuracy and was assigned a USGS significance rating of 416, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — 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 6 hours ago 231 km WSW of Port McNeill, Canada. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
-129.6785°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.2 earthquake near Port McNeill, Canada?
The magnitude 5.2 earthquake that struck 190 km WSW of Port McNeill, Canada on September 28, 2026 at 09:13 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 50.1710°, -129.6785°, which is 190 km WSW of Port McNeill, Canada.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.
Is this the same earthquake as the M5.4 one earlier?
No. This magnitude 5.2 earthquake is an aftershock of the larger magnitude 5.4 mainshock that occurred earlier 231 km WSW of Port McNeill, Canada. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Authoritative source: USGS event page (event ID: us6000ty43). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 28, 2026). M5.2 Earthquake 190 km WSW of Port McNeill, Canada — September 28, 2026. Retrieved September 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ty43/