4.2

M4.2 Earthquake near British Columbia, CanadaJanuary 30, 2023

2023-01-30 19:28:36 UTC (2023-01-30) · approx. 11:28 AM UTC-8 local

MagnitudeM4.2(mwr)
Time19:28 UTC11:28 AM UTC-8
Depth11.3 kmshallow crustal
Coordinates57.153°, -122.186°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 30, 2023 at 19:28 UTC, a magnitude 4.2 shallow crustal earthquake struck near British Columbia, Canada, at a depth of 11.3 km and coordinates 57.1530°, -122.1865°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 57.15°, -122.19°

Earthquake Details

Magnitude
4.2 mwr
Depth
11.3 km
shallow crustal
Location
57.1530°N
-122.1865°E

Technical Information

Event ID
us6000jqwy
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
27
Azimuthal Gap
60.0°
Min Station Distance
0.457°
RMS Residual
0.72 sec
Last Updated
2023-04-13 21:53:38 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near British Columbia, Canada?

The magnitude 4.2 earthquake that struck near British Columbia, Canada on January 30, 2023 at 19:28 UTC had a depth of 11.3 km. 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000jqwy). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, January 30, 2023). M4.2 Earthquake near British Columbia, CanadaJanuary 30, 2023. Retrieved April 13, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jqwy/