QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Sheridan, OR

No earthquake was likely felt in Sheridan in the 24 hours to 8:21 pm PST (04:21 UTC). The last one was M 3.2, 19 km (12 mi) E, at 7:58 am PST on 23 November 2025, estimated intensity II (weak) in town; 228 felt reports to USGS. Every earthquake near Sheridan

This page: a magnitude 1.6 earthquake was recorded 24 km (15 mi) north-northwest of Sheridan, OR, at 11:03 pm PST on 10 December 2025 (07:03 UTC), 20 km deep.

USGS: 24 km NNW of Sheridan, Oregon

72 km (45 mi) WSW of Portland, OR · 51 km (32 mi) WSW of Hillsboro, OR

11:03 pm PST, Dec 10, 2025 · · 20 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Yamhill County 16 kmTillamook County 26 kmWashington County 42 kmPolk County 46 kmColumbia County 78 kmLincoln County 80 kmClatsop County 82 kmMarion County 86 kmMultnomah County 89 km
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
11:03 pm PST on 10 December 2025 ()
Where
24 km (15 mi) north-northwest of Sheridan, OR · earthquakes near Sheridan
Magnitude
M 1.6 (ml)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Yamhill County, 16 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 336 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Sheridan, 24 km away, the estimate is intensity I (not felt). 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.

Earthquakes near other towns within 30 km: Willamina, Yamhill, Carlton, McMinnville, Grand Ronde.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 45.3030, -123.5088. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Yamhill County, OR 16 km (10 mi) ESE earthquakes near Yamhill County
Tillamook County, OR 26 km (16 mi) NW earthquakes near Tillamook County
Washington County, OR 42 km (26 mi) NE earthquakes near Washington County
Polk County, OR 46 km (28 mi) S earthquakes near Polk County
Columbia County, OR 78 km (49 mi) NNE earthquakes near Columbia County
Lincoln County, OR 80 km (50 mi) SSW earthquakes near Lincoln County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 1.6 26 km W of Banks, Oregon
  2. 1.7 27 km E of Wheeler, Oregon
  3. 1.2 4 km ENE of Lafayette, Oregon
  4. 1.0 7 km NW of Yamhill, Oregon
  5. 1.3 3 km ESE of Rose Lodge, Oregon
  6. 1.1 4 km ENE of Lafayette, Oregon
  7. 1.4 4 km ESE of Rose Lodge, Oregon
  8. 1.4 2 km NNW of Falls City, Oregon
  9. 2.0 2 km SE of Amity, Oregon
  10. 1.9 3 km S of Fort Hill, Oregon
  11. 2.6 3 km SE of Rose Lodge, Oregon
  12. 1.9 21 km W of Forest Grove, Oregon
  13. 2.0 7 km WNW of McMinnville, Oregon
  14. 1.7 7 km ESE of Amity, Oregon
  15. 2.0 2 km WNW of Dundee, 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.