QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

262 km W of Bandon, Oregon

Yes. A magnitude 2.7 earthquake was recorded 262 km W of Bandon, Oregon at 00:48 UTC on 2025-09-03, 10 km deep.

· 10 km deep · released about 340 lb of TNT

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Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.7 (ml)
Depth
10 km below the surface
Felt
no reports yet
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 348 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 23 km (14 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 6.3 on 2019-08-29 — about 250,000 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 43.5878, -127.5780. Map © OpenStreetMap contributors.

Aftershocks so far

44 earthquakes have been recorded within 50 km since this one.

  1. 2.8 237 km W of Bandon, Oregon
  2. 3.5 216 km W of Bandon, Oregon
  3. 4.6 225 km W of Bandon, Oregon
  4. 4.0 228 km W of Bandon, Oregon
  5. 3.7 217 km W of Bandon, Oregon
  6. 3.9 224 km W of Bandon, Oregon
  7. 5.5 226 km W of Langlois, Oregon
  8. 3.8 265 km WNW of Barview, Oregon
  9. 4.0 241 km W of Bandon, Oregon
  10. 3.6 260 km WNW of Bandon, Oregon
  11. 3.6 261 km WNW of Bandon, Oregon
  12. 2.9 239 km W of Langlois, Oregon
  13. 3.0 227 km W of Bandon, Oregon
  14. 2.9 226 km W of Bandon, Oregon
  15. 3.1 296 km W of Bandon, Oregon

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.