explosion · reviewed by a seismologist
M 1.8ml
Earthquake near Redmond, OR
No earthquake was likely felt in Redmond in the 24 hours to 3:55 pm PST (23:55 UTC). The last one was M 2.1, 16 km (10 mi) NE, at 4:02 pm PST on 19 February 2026, estimated intensity II (weak) in town. Every earthquake near Redmond
No: USGS classifies this as a explosion, not an earthquake. A magnitude 1.8 explosion was recorded 11 km (7 mi) east-northeast of Redmond, OR, at 10:37 am PDT on 27 June 2018 (17:37 UTC), less than 1 km deep.
USGS: 10 km ENE of Redmond, Oregon
35 km (22 mi) NE of Bend, OR
- When
- 10:37 am PDT on 27 June 2018 ()
- Where
- 11 km (7 mi) east-northeast of Redmond, OR · earthquakes near Redmond
- Magnitude
- M 1.8 (ml)
- Depth
- -1.6 km below the surface
- Felt
- no reports yet
- Nearest
- Jefferson County, 38 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3061 days ago
Earthquake alerts for Redmond, 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 14 km (9 mi) from the epicentre. In Redmond, 11 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: Terrebonne, Prineville, Culver.
USGS catalogues this as explosion, not an earthquake.
How big was it?
This earthquake released about 16 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 5.8 970,000× the energy of this one
- Magna, Utah 2020 M 5.7 680,000× the energy of this one
- Around the size people start to feel M 3.0 61× the energy of this one
- This earthquake M 1.8 about 16 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 44.3157, -121.0557. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Jefferson County, OR | 38 km (24 mi) | NNW | earthquakes near Jefferson County |
| Deschutes County, OR | 47 km (29 mi) | SSW | earthquakes near Deschutes County |
| Crook County, OR | 57 km (35 mi) | ESE | earthquakes near Crook County |
| Wheeler County, OR | 94 km (58 mi) | ENE | earthquakes near Wheeler County |
| Wasco County, OR | 95 km (59 mi) | N | earthquakes near Wasco County |
| Linn County, OR | 119 km (74 mi) | W | earthquakes near Linn County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 1.7 9 km ENE of Terrebonne, Oregon
- 1.9 7 km SE of Bend, Oregon
- 1.9 11 km ENE of Terrebonne, Oregon
- 1.9 32 km ESE of Bend, Oregon
- 2.1 4 km ENE of Prineville, Oregon
- 2.0 5 km NNW of Bend, Oregon
- 2.3 28 km SSE of Prineville, Oregon
- 2.1 5 km NNW of Tetherow, Oregon
- 1.9 16 km ENE of Terrebonne, Oregon
- 2.3 7 km SW of Prineville, Oregon
- 1.8 11 km ENE of Terrebonne, Oregon
- 2.3 5 km SSW of Tumalo, Oregon
- 2.0 4 km SSW of Prineville, Oregon
- 1.9 3 km NW of Madras, Oregon
- 2.0 11 km ENE of Terrebonne, 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.