Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Eugene, OR
No earthquake was likely felt in Eugene in the 24 hours to 4:47 am PST (12:47 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
This page: a magnitude 1.8 earthquake was recorded 30 km (19 mi) northeast of Eugene, OR, at 5:22 am PDT on 31 March 2024 (12:22 UTC), 13 km deep.
USGS: 12 km SSW of Holley, Oregon
31 km (20 mi) NE of Eugene, OR · 25 km (15 mi) NNE of Springfield, OR
- When
- 5:22 am PDT on 31 March 2024 ()
- Where
- 30 km (19 mi) northeast of Eugene, OR · earthquakes near Eugene
- Magnitude
- M 1.8 (ml)
- Depth
- 13 km below the surface
- Felt
- no reports yet
- Nearest
- Lane County, 35 km S
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 956 days ago
Earthquake alerts for Eugene, OR
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 1 km (1 mi) from the epicentre. In Eugene, 30 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: Sweet Home, Brownsville, Coburg, Springfield, Harrisburg.
How big was it?
This earthquake released about 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
- Magna, Utah 2020 M 5.7 840,000× the energy of this one
- Around the size people start to feel M 3.0 75× the energy of this one
- This earthquake M 1.8 about 13 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
The largest earthquake within 50 km since 2016 was M 4.4 on 2022-10-07 — about 9,100 times the energy of this one.
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 44.2415, -122.8200. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Lane County, OR | 35 km (22 mi) | S | earthquakes near Lane County |
| Linn County, OR | 36 km (22 mi) | NE | earthquakes near Linn County |
| Benton County, OR | 56 km (35 mi) | WNW | earthquakes near Benton County |
| Marion County, OR | 76 km (47 mi) | NNE | earthquakes near Marion County |
| Polk County, OR | 86 km (54 mi) | NNW | earthquakes near Polk County |
| Lincoln County, OR | 97 km (60 mi) | WNW | earthquakes near Lincoln County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
25 earthquakes have been recorded within 50 km since this one.
- 1.5 13 km S of Crawfordsville, Oregon
- 1.7 5 km SSE of Monroe, Oregon
- 0.4 24 km ENE of Unity, Oregon
- 1.5 6 km SSE of Monroe, Oregon
- 1.8 1 km ESE of Springfield, Oregon
- 1.8 5 km NW of Lacomb, Oregon
- 1.6 5 km NW of Lacomb, Oregon
- 1.8 5 km SSE of Monroe, Oregon
- 1.7 14 km NE of Springfield, Oregon
- 2.0 6 km W of Lacomb, Oregon
- 1.6 9 km SSE of Crawfordsville, Oregon
- 1.5 4 km SSE of Cascadia, Oregon
- 1.5 1 km NNE of Cascadia, Oregon
- 2.0 4 km N of Sweet Home, Oregon
- 1.8 5 km N of Waterloo, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.