3.0

M3.0 Earthquake 186 km WSW of Port Orford, OregonSeptember 14, 2025

2025-09-14 13:25:12 UTC (2025-09-14) · approx. 5:25 AM UTC-8 local

MagnitudeM3.0(ml)
Time13:25 UTC5:25 AM UTC-8
Depth10.0 kmshallow crustal
Coordinates42.385°, -126.715°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 14, 2025 at 13:25 UTC, a magnitude 3.0 shallow crustal earthquake struck 186 km WSW of Port Orford, Oregon, at a depth of 10.0 km and coordinates 42.3847°, -126.7152°.

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 42.38°, -126.72°

Earthquake Details

Magnitude
3.0 ml
Depth
10.0 km
shallow crustal
Location
42.3847°N
-126.7152°E

Technical Information

Event ID
us7000qw5u
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
24
Azimuthal Gap
249.0°
Min Station Distance
1.756°
RMS Residual
0.71 sec
Last Updated
2025-12-03 03:58:31 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Port Orford, Oregon?

The magnitude 3.0 earthquake that struck 186 km WSW of Port Orford, Oregon on September 14, 2025 at 13:25 UTC had a depth of 10.0 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 3.0 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000qw5u). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, September 14, 2025). M3.0 Earthquake 186 km WSW of Port Orford, OregonSeptember 14, 2025. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000qw5u/