QuakeIndex

explosion · reviewed by a seismologist

M 1.7ml

Earthquake near Eugene, OR

No earthquake was likely felt in Eugene in the 24 hours to 2:02 pm PDT (21:02 UTC). The last one was M 1.8, 7 km (4 mi) ESE, at 10:54 am PDT on 25 August 2026, estimated intensity II (weak) in town. Every earthquake near Eugene

No: USGS classifies this as a explosion, not an earthquake. A magnitude 1.7 explosion was recorded 28 km (17 mi) north-northwest of Eugene, OR, at 11:33 am PDT on 19 October 2026 (18:33 UTC), less than 1 km deep.

USGS: 5 km SSE of Monroe, Oregon

26 km (16 mi) NNW of Eugene, OR

11:33 am PDT, Oct 19, 2026 · · -0.3 km deep · released about 12 lb of TNT

10 km30 km60 km120 km N Benton County 28 kmLane County 48 kmLinn County 64 kmLincoln County 66 kmPolk County 71 kmMarion County 90 kmDouglas County 109 kmYamhill County 109 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
11:33 am PDT on 19 October 2026 ()
Where
28 km (17 mi) north-northwest of Eugene, OR · earthquakes near Eugene
Magnitude
M 1.7 (ml)
Depth
-0.3 km below the surface
Felt
no reports yet
Nearest
Benton County, 28 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 23 hours ago

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

At this magnitude and depth, people at rest would likely notice it out to about 13 km (8 mi) from the epicentre. In Eugene, 28 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: Junction City, Harrisburg, Coburg, Veneta, Brownsville.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 44.2647, -123.2757. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Benton County, OR 28 km (17 mi) NNW earthquakes near Benton County
Lane County, OR 48 km (30 mi) SE earthquakes near Lane County
Linn County, OR 64 km (40 mi) ENE earthquakes near Linn County
Lincoln County, OR 66 km (41 mi) NW earthquakes near Lincoln County
Polk County, OR 71 km (44 mi) N earthquakes near Polk County
Marion County, OR 90 km (56 mi) NE earthquakes near Marion 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.

On USGS

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