QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Mount Angel, OR

USGS: 1 km SW of Mount Angel, Oregon

55 km (34 mi) SSW of Portland, OR · 22 km (14 mi) NE of Salem, OR

4:43 am PDT, Oct 1, 2026 · · 24 km deep · released about 6.6 lb of TNT

10 km30 km60 km120 km N Marion County 26 kmYamhill County 44 kmPolk County 49 kmClackamas County 50 kmWashington County 59 kmMultnomah County 63 kmLinn County 67 kmBenton County 79 kmClark County 84 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
4:43 am PDT on 1 October 2026 ()
Where
in Mount Angel, OR · earthquakes near Mount Angel
Magnitude
M 1.6 (ml)
Depth
24 km below the surface
Felt
no reports yet
Nearest
Marion County, 26 km SE
Nearest mapped fault
Mount Angel fault, 1 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 34 hours ago

A magnitude 1.6 earthquake was recorded in Mount Angel, OR, at 4:43 am PDT on 1 October 2026 (11:43 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Silverton, Gervais, Woodburn, Hubbard, Hayesville, Keizer.

How big was it?

This earthquake released about 6.6 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 2,300,000× 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 6.6 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 lists one earthquake of M5 or more within 50 km:

  1. 5.6 4 km E of Scotts Mills, Oregon · 17 km E 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 45.0580, -122.8185. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Marion County, OR 26 km (16 mi) SE earthquakes near Marion County
Yamhill County, OR 44 km (28 mi) WNW earthquakes near Yamhill County
Polk County, OR 49 km (30 mi) WSW earthquakes near Polk County
Clackamas County, OR 50 km (31 mi) ENE earthquakes near Clackamas County
Washington County, OR 59 km (37 mi) NNW earthquakes near Washington County
Multnomah County, OR 63 km (39 mi) NNE earthquakes near Multnomah County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

What changedFromToWhen
longitude-122.82-122.82
depth24.0924.37
magnitude1.621.56

On USGS

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