3.2

M3.2 Earthquake 130 km W of Port Orford, Oregon — September 27, 2020

2020-09-27 17:25:19 UTC (2020-09-27) · approx. 9:25 AM UTC-8 local

MagnitudeM3.2(ml)
Time17:25 UTC≈ 9:25 AM UTC-8
Depth10.0 kmshallow crustal
Coordinates42.861°, -126.080°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 27, 2020 at 17:25 UTC, a magnitude 3.2 shallow crustal earthquake struck 130 km W of Port Orford, Oregon, at a depth of 10.0 km and coordinates 42.8605°, -126.0802°.

Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 951 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 97 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 42.86°, -126.08°

Earthquake Details

Magnitude
3.2 ml
Depth
10.0 km
shallow crustal
Location
42.8605°N
-126.0802°E

Technical Information

Event ID
us6000c1yl
Event Type
earthquake
Status
✓ Reviewed
Significance
158
Azimuthal Gap
229.0°
Min Station Distance
1.489°
RMS Residual
0.89 sec
Last Updated
2020-12-05 21:03:02 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Port Orford, Oregon?

The magnitude 3.2 earthquake that struck 130 km W of Port Orford, Oregon on September 27, 2020 at 17:25 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 3.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000c1yl). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, September 27, 2020). M3.2 Earthquake 130 km W of Port Orford, Oregon — September 27, 2020. Retrieved December 5, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c1yl/