M3.1 Earthquake near British Columbia, Canada — July 29, 2023
2023-07-29 21:29:00 UTC (2023-07-29) · approx. 1:29 PM UTC-8 local
On July 29, 2023 at 21:29 UTC, a magnitude 3.1 shallow crustal earthquake struck near British Columbia, Canada, at a depth of -2.0 km and coordinates 49.6678°, -114.8012°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 607 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 79 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-114.8012°E
Technical Information
Common Questions
How strong was the magnitude 3.1 earthquake near British Columbia, Canada?
The magnitude 3.1 earthquake that struck near British Columbia, Canada on July 29, 2023 at 21:29 UTC had a depth of -2.0 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 3.1 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: mb90022863). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, July 29, 2023). M3.1 Earthquake near British Columbia, Canada — July 29, 2023. Retrieved July 30, 2023 from https://www.earthquaketracker.org/earthquakes/event/mb90022863/