4.7

M4.7 Earthquake 208 km WSW of Tofino, CanadaJuly 11, 2024

2024-07-11 17:34:26 UTC (2024-07-11) · approx. 8:34 AM UTC-9 local

Felt by 4 people across nearby locations.

MagnitudeM4.7(mwr)
Time17:34 UTC8:34 AM UTC-9
Depth10.0 kmshallow crustal
Coordinates48.766°, -128.693°
Felt by4DYFI responses
Status✓ Reviewed by USGS· Tsunami evaluation
Tsunami Warning Issued

On July 11, 2024 at 17:34 UTC, a magnitude 4.7 shallow crustal earthquake struck 208 km WSW of Tofino, Canada, at a depth of 10.0 km and coordinates 48.7663°, -128.6930°. This earthquake was detected by 189 seismic stations with good location accuracy and was assigned a USGS significance rating of 341, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 48.77°, -128.69°

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.

USGS DYFI community-reported intensity map for the M4.7 earthquake near 208 km WSW of Tofino, Canada

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.7 mwr
Depth
10.0 km
shallow crustal
Location
48.7663°N
-128.6930°E
Felt Reports
4
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us7000myms
Event Type
earthquake
Status
✓ Reviewed
Significance
341
Stations Used
189
Azimuthal Gap
99.0°
Min Station Distance
0.887°
RMS Residual
0.88 sec
Last Updated
2024-09-20 16:00:54 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Tofino, Canada?

The magnitude 4.7 earthquake that struck 208 km WSW of Tofino, Canada on July 11, 2024 at 17:34 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 48.7663°, -128.6930°, which is 208 km WSW of Tofino, Canada.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000myms). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, July 11, 2024). M4.7 Earthquake 208 km WSW of Tofino, CanadaJuly 11, 2024. Retrieved September 20, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000myms/