QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Woodburn, OR

No earthquake was likely felt in Woodburn in the 24 hours to 6:27 pm PST (02:27 UTC). The last one was M 3.2, 25 km (15 mi) WSW, at 7:58 am PST on 23 November 2025, estimated intensity II (weak) in town; 228 felt reports to USGS. Every earthquake near Woodburn

This page: a magnitude 1.6 earthquake was recorded 2 km (1 mi) north of Woodburn, OR, at 1:15 pm PST on 26 December 2023 (21:15 UTC), 16 km deep.

USGS: 2 km N of Woodburn, Oregon

45 km (28 mi) SSW of Portland, OR · 29 km (18 mi) SSW of Tigard, OR

1:15 pm PST, Dec 26, 2023 · · 16 km deep · released about 6.8 lb of TNT

10 km30 km60 km120 km N Marion County 37 kmYamhill County 37 kmWashington County 47 kmPolk County 52 kmClackamas County 52 kmMultnomah County 55 kmClark County 74 kmTillamook County 77 kmLinn County 79 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
1:15 pm PST on 26 December 2023 ()
Where
2 km (1 mi) north of Woodburn, OR · earthquakes near Woodburn
Magnitude
M 1.6 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Marion County, 37 km SE
Nearest mapped fault
Mount Angel fault, 6 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1051 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 Woodburn, 2 km away, the estimate is intensity II (weak). 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: Hubbard, Donald, Gervais, Mount Angel, Wilsonville, Canby.

How big was it?

This earthquake released about 6.8 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 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 lists 2 earthquakes of M5 or more within 50 km:

  1. 5.6 4 km E of Scotts Mills, Oregon · 25 km SE of this epicentre
  2. 5.0 3 km SW of Portland, Oregon · 39 km NNE of this epicentre

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 45.1643, -122.8600. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Marion County, OR 37 km (23 mi) SE earthquakes near Marion County
Yamhill County, OR 37 km (23 mi) WNW earthquakes near Yamhill County
Washington County, OR 47 km (29 mi) NNW earthquakes near Washington County
Polk County, OR 52 km (32 mi) SW earthquakes near Polk County
Clackamas County, OR 52 km (32 mi) E earthquakes near Clackamas County
Multnomah County, OR 55 km (34 mi) NE earthquakes near Multnomah County

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

Aftershocks so far

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

  1. 1.7 14 km N of Mehama, Oregon
  2. 1.7 9 km SSW of Saint Paul, Oregon
  3. 1.8 10 km ESE of Molalla, Oregon
  4. 1.6 5 km W of Dallas, Oregon
  5. 1.6 16 km WNW of McMinnville, Oregon
  6. 1.7 4 km ENE of Lafayette, Oregon
  7. 1.7 5 km W of Mehama, Oregon
  8. 2.0 4 km NNE of Lafayette, Oregon
  9. 1.7 11 km SE of Silverton, Oregon
  10. 1.6 3 km E of Sherwood, Oregon
  11. 1.9 7 km ESE of Molalla, Oregon
  12. 1.7 4 km ENE of Molalla, Oregon
  13. 1.8 5 km ENE of Molalla, Oregon
  14. 2.1 5 km ENE of Molalla, Oregon
  15. 1.6 8 km ESE of Molalla, 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.