explosion · reviewed by a seismologist
M 2.1ml
Earthquake near Sunriver, OR
No earthquake was likely felt in Sunriver in the 24 hours to 1:21 am PST (09:21 UTC). The last one was M 7.0, 489 km (304 mi) SW, at 10:44 am PST on 5 December 2024, estimated intensity II (weak) in town; 16,883 felt reports to USGS. Every earthquake near Sunriver
No: USGS classifies this as a explosion, not an earthquake. A magnitude 2.1 explosion was recorded 5 km (3 mi) east-southeast of Sunriver, OR, at 12:22 pm PDT on 9 July 2018 (19:22 UTC), less than 1 km deep.
USGS: 4 km ESE of Sunriver, Oregon
22 km (14 mi) SSW of Bend, OR
- When
- 12:22 pm PDT on 9 July 2018 ()
- Where
- 5 km (3 mi) east-southeast of Sunriver, OR · earthquakes near Sunriver
- Magnitude
- M 2.1 (ml)
- Depth
- -1.6 km below the surface
- Felt
- no reports yet
- Nearest
- Deschutes County, 14 km ENE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3049 days ago
Earthquake alerts for Sunriver, 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 18 km (11 mi) from the epicentre. In Sunriver, 5 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: Three Rivers, Deschutes River Woods, Bend, La Pine.
USGS catalogues this as explosion, not an earthquake.
How big was it?
This earthquake released about 49 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 310,000× the energy of this one
- Magna, Utah 2020 M 5.7 220,000× the energy of this one
- Around the size people start to feel M 3.0 19× the energy of this one
- This earthquake M 2.1 about 49 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 43.8643, -121.3843. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Deschutes County, OR | 14 km (9 mi) | ENE | earthquakes near Deschutes County |
| Crook County, OR | 88 km (54 mi) | ENE | earthquakes near Crook County |
| Jefferson County, OR | 88 km (55 mi) | N | earthquakes near Jefferson County |
| Linn County, OR | 115 km (72 mi) | NW | earthquakes near Linn County |
| Lake County, OR | 144 km (90 mi) | SE | earthquakes near Lake County |
| Wheeler County, OR | 145 km (90 mi) | NE | earthquakes near Wheeler County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
39 earthquakes have been recorded within 50 km since this one.
- 1.6 28 km SW of Sisters, Oregon
- 1.7 29 km SW of Sisters, Oregon
- 1.7 29 km SW of Sisters, Oregon
- 2.2 29 km SW of Sisters, Oregon
- 1.6 10 km SE of Deschutes River Woods, Oregon
- 1.7 8 km E of La Pine, Oregon
- 1.7 5 km SSW of La Pine, Oregon
- 2.2 5 km SSW of Tumalo, Oregon
- 1.9 6 km SE of Bend, Oregon
- 2.0 5 km SW of Tumalo, Oregon
- 2.0 6 km SE of Bend, Oregon
- 1.6 4 km SSW of La Pine, Oregon
- 1.7 20 km ESE of Three Rivers, Oregon
- 2.0 29 km SE of Pronghorn, Oregon
- 1.9 7 km SE of Bend, 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.