M4.9 Earthquake 205 km WSW of Port McNeill, Canada — April 17, 2024
2024-04-17 21:46:14 UTC (2024-04-17) · approx. 12:46 PM UTC-9 local
Felt by 4 people across nearby locations.
On April 17, 2024 at 21:46 UTC, a magnitude 4.9 shallow crustal earthquake struck 205 km WSW of Port McNeill, Canada, at a depth of 6.9 km and coordinates 50.2005°, -129.9075°. This earthquake was detected by 148 seismic stations with good location accuracy and was assigned a USGS significance rating of 371, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — 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 4 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
-129.9075°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Port McNeill, Canada?
The magnitude 4.9 earthquake that struck 205 km WSW of Port McNeill, Canada on April 17, 2024 at 21:46 UTC had a depth of 6.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 50.2005°, -129.9075°, which is 205 km WSW of Port McNeill, Canada.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000mcrx). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, April 17, 2024). M4.9 Earthquake 205 km WSW of Port McNeill, Canada — April 17, 2024. Retrieved June 25, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000mcrx/