4.3

M4.3 Earthquake 212 km WSW of Tofino, CanadaJuly 3, 2024

2024-07-03 20:23:46 UTC (2024-07-03) · approx. 11:23 AM UTC-9 local

MagnitudeM4.3(mb)
Time20:23 UTC11:23 AM UTC-9
Depth10.0 kmshallow crustal
Coordinates48.593°, -128.673°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 3, 2024 at 20:23 UTC, a magnitude 4.3 shallow crustal earthquake struck 212 km WSW of Tofino, Canada, at a depth of 10.0 km and coordinates 48.5928°, -128.6725°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 48.59°, -128.67°

Earthquake Details

Magnitude
4.3 mb
Depth
10.0 km
shallow crustal
Location
48.5928°N
-128.6725°E

Technical Information

Event ID
us6000na4w
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
104
Azimuthal Gap
143.0°
Min Station Distance
2.079°
RMS Residual
0.61 sec
Last Updated
2024-09-12 21:52:27 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Tofino, Canada?

The magnitude 4.3 earthquake that struck 212 km WSW of Tofino, Canada on July 3, 2024 at 20:23 UTC had a depth of 10.0 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000na4w). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, July 3, 2024). M4.3 Earthquake 212 km WSW of Tofino, CanadaJuly 3, 2024. Retrieved September 12, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000na4w/