QuakeIndex

Earthquake · reviewed by a seismologist

M 1.4ml

Earthquake near Scappoose, OR

No earthquake was likely felt in Scappoose in the 24 hours to 1:52 pm PST (21:52 UTC). The last one was M 3.0, 15 km (9 mi) N, at 7:25 am PDT on 22 October 2026, estimated intensity II (weak) in town; 113 felt reports to USGS. Every earthquake near Scappoose

This page: a magnitude 1.4 earthquake was recorded 10 km (6 mi) south-southeast of Scappoose, OR, at 12:59 pm PDT on 4 October 2026 (19:59 UTC), 23 km deep.

USGS: 9 km SSE of Scappoose, Oregon

21 km (13 mi) NW of Portland, OR · 18 km (11 mi) NNE of Hillsboro, OR

12:59 pm PDT, Oct 4, 2026 · · 23 km deep · released about 3.3 lb of TNT

10 km30 km60 km120 km N Washington County 24 kmClark County 29 kmMultnomah County 35 kmColumbia County 36 kmCowlitz County 60 kmYamhill County 60 kmClackamas County 76 kmTillamook County 76 kmClatsop County 78 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
12:59 pm PDT on 4 October 2026 ()
Where
10 km (6 mi) south-southeast of Scappoose, OR · earthquakes near Scappoose
Magnitude
M 1.4 (ml)
Depth
23 km below the surface
Felt
no reports yet
Nearest
Washington County, 24 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 38 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. 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: Felida, Lake Shore, North Portland, Bethany, Hazel Dell, Vancouver.

How big was it?

This earthquake released about 3.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 4,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 3,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 290× the energy of this one
  4. This earthquake M 1.4 about 3.3 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. 5.2 5 km E of Bridgeton, Oregon · 20 km ESE of this epicentre
  2. 5.0 3 km SW of Portland, Oregon · 22 km SSE 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 45.6717, -122.8335. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Washington County, OR 24 km (15 mi) WSW earthquakes near Washington County
Clark County, WA 29 km (18 mi) ENE earthquakes near Clark County
Multnomah County, OR 35 km (22 mi) ESE earthquakes near Multnomah County
Columbia County, OR 36 km (22 mi) NNW earthquakes near Columbia County
Cowlitz County, WA 60 km (37 mi) NNE earthquakes near Cowlitz County
Yamhill County, OR 60 km (37 mi) SW earthquakes near Yamhill County

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

Aftershocks so far

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

  1. 1.1 2 km SSW of Amboy, Washington
  2. 1.3 1 km NE of Cherry Grove, Washington
  3. 1.3 3 km SSW of Tualatin, Oregon
  4. 1.2 4 km ENE of Lafayette, Oregon
  5. 2.4 8 km ESE of Venersborg, Washington
  6. 0.9 3 km NE of Woodland, Washington
  7. 1.6 3 km W of Columbia City, Oregon
  8. 1.0 7 km NW of Yamhill, Oregon
  9. 3.0 3 km W of Columbia City, Oregon
  10. 0.9 6 km WNW of King City, Oregon
  11. 1.6 4 km E of Lewisville, Washington
  12. 1.4 11 km NE of Vernonia, Oregon
  13. 0.7 3 km E of Battle Ground, Washington
  14. 1.2 3 km W of Venersborg, Washington
  15. 1.1 3 km NNE of Hockinson, Washington

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.