Earthquake · reviewed by a seismologist
M 2.1md
11 km NE of Harper, Oregon
- When
- Magnitude
- M 2.1 (md)
- Depth
- 6.4 km below the surface
- Felt
- no reports yet
- Nearest
- Payette County, 61 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 75 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 38 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 5.8 390,000× the energy of this one
- Magna, Utah 2020 M 5.7 280,000× the energy of this one
- Around the size people start to feel M 3.0 25× the energy of this one
- This earthquake M 2.1 about 38 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.
Where
Epicentre 43.9360, -117.5100. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Payette County, ID | 61 km (38 mi) | W of here | earthquakes near Payette County |
| Canyon County, ID | 73 km (45 mi) | WNW of here | earthquakes near Canyon County |
| Washington County, ID | 80 km (50 mi) | SW of here | earthquakes near Washington County |
| Malheur County, OR | 83 km (52 mi) | N of here | earthquakes near Malheur County |
| Baker County, OR | 87 km (54 mi) | S of here | earthquakes near Baker County |
| Gem County, ID | 90 km (56 mi) | W of here | earthquakes near Gem 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
- 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.