3.0

M3.0 Earthquake 271 km NNW of Inuvik, CanadaAugust 28, 2025

2025-08-28 17:50:25 UTC (2025-08-28) · approx. 8:50 AM UTC-9 local

MagnitudeM3.0(ml)
Time17:50 UTC8:50 AM UTC-9
Depth19.5 kmshallow crustal
Coordinates70.704°, -135.607°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 28, 2025 at 17:50 UTC, a magnitude 3.0 shallow crustal earthquake struck 271 km NNW of Inuvik, Canada, at a depth of 19.5 km and coordinates 70.7041°, -135.6071°.

Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 70.70°, -135.61°

Earthquake Details

Magnitude
3.0 ml
Depth
19.5 km
shallow crustal
Location
70.7041°N
-135.6071°E

Technical Information

Event ID
ak025b17eflb
Event Type
earthquake
Status
✓ Reviewed
Significance
138
RMS Residual
1.20 sec
Last Updated
2025-11-10 20:58:47 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Inuvik, Canada?

The magnitude 3.0 earthquake that struck 271 km NNW of Inuvik, Canada on August 28, 2025 at 17:50 UTC had a depth of 19.5 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 3.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak025b17eflb). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, August 28, 2025). M3.0 Earthquake 271 km NNW of Inuvik, CanadaAugust 28, 2025. Retrieved November 10, 2025 from https://www.earthquaketracker.org/earthquakes/event/ak025b17eflb/