explosion · reviewed by a seismologist
M 1.6ml
6 km NNW of Philomath, Oregon
- When
- Magnitude
- M 1.6 (ml)
- Depth
- -0.5 km below the surface
- Felt
- 1 report
- Nearest
- Benton County, 11 km S
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 307 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.
USGS catalogues this as explosion, not an earthquake.
How big was it?
This earthquake released about 8.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,800,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
- Around the size people start to feel M 3.0 110× the energy of this one
- This earthquake M 1.6 about 8.4 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 44.5907, -123.4058. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Benton County, OR | 11 km (7 mi) | N of here | earthquakes near Benton County |
| Polk County, OR | 34 km (21 mi) | S of here | earthquakes near Polk County |
| Lincoln County, OR | 40 km (25 mi) | E of here | earthquakes near Lincoln County |
| Linn County, OR | 70 km (43 mi) | W of here | earthquakes near Linn County |
| Yamhill County, OR | 73 km (46 mi) | S of here | earthquakes near Yamhill County |
| Marion County, OR | 74 km (46 mi) | WSW of here | earthquakes near Marion County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
7 earthquakes have been recorded within 50 km since this one.
- 1.5 6 km SSE of Monroe, Oregon
- 1.8 2 km ENE of Blodgett, Oregon
- 1.9 3 km S of Fort Hill, Oregon
- 1.8 5 km SSE of Monroe, Oregon
- 1.6 4 km NE of Falls City, Oregon
- 1.9 7 km SE of Toledo, Oregon
- 1.8 8 km W of Falls City, 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.