Oregon earthquakes

M4.1 earthquake 189 km W of Langlois, Oregon

A magnitude 4.1 earthquake struck 189 km W of Langlois, Oregon on Sun, Aug 1, 2021, 12:04 PM PDT (19:04 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.4 239 km W of Bandon, Oregon. This one was a foreshock.

Bandon forecastMore in Oregon

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-08-01 19:04:19 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
43.218° N, 126.739° W
Region
Oregon
Felt reports
3
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

3 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
178°
Stations used
54

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 3.9258 km WNW of Bandon, Oregon · 1890 days ago · 10 km deep · 86 km away
  2. 2.9171 km WSW of Port Orford, Oregon · 1880 days ago · 10 km deep · 88 km away
  3. 2.7169 km WSW of Port Orford, Oregon · 1863 days ago · 10 km deep · 96 km away
  4. 4.4239 km W of Bandon, Oregon · 1862 days ago · 10 km deep · 56 km away
  5. 3.0195 km W of Bandon, Oregon · 1858 days ago · 10 km deep · 26 km away
  6. 2.5off the coast of Oregon · 1854 days ago · 10 km deep · 29 km away
  7. 3.4236 km W of Langlois, Oregon · 1833 days ago · 10 km deep · 47 km away

Before

  1. 2.7197 km W of Langlois, Oregon · 1906 days ago · 10 km deep · 9 km away
  2. 2.5269 km W of Port Orford, Oregon · 1907 days ago · 10 km deep · 82 km away
  3. 2.9208 km WNW of Port Orford, Oregon · 1908 days ago · 10 km deep · 21 km away
  4. 4.2174 km WNW of Port Orford, Oregon · 1913 days ago · 10 km deep · 18 km away · felt by 4
  5. 4.0213 km W of Bandon, Oregon · 1915 days ago · 10 km deep · 32 km away
  6. 2.9232 km W of Bandon, Oregon · 1915 days ago · 10 km deep · 46 km away
  7. 2.8238 km W of Langlois, Oregon · 1915 days ago · 10 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f1as. Read Mon, Oct 5, 2026, 1:11 PM UTC.