Earthquake · reviewed by a seismologist
M 1.6ml
6 km NNW of Clatskanie, Oregon
- When
- Magnitude
- M 1.6 (ml)
- Depth
- 48 km below the surface
- Felt
- no reports yet
- Nearest
- Wahkiakum County, 21 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 162 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 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
- Around the size people start to feel M 3.0 150× the energy of this one
- This earthquake M 1.6 about 6.4 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 46.1602, -123.2325. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Wahkiakum County, WA | 21 km (13 mi) | SE of here | earthquakes near Wahkiakum County |
| Columbia County, OR | 27 km (17 mi) | NNW of here | earthquakes near Columbia County |
| Clatsop County, OR | 39 km (25 mi) | ENE of here | earthquakes near Clatsop County |
| Cowlitz County, WA | 43 km (27 mi) | W of here | earthquakes near Cowlitz County |
| Pacific County, WA | 61 km (38 mi) | SE of here | earthquakes near Pacific County |
| Washington County, OR | 68 km (42 mi) | N of here | earthquakes near Washington County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
10 earthquakes have been recorded within 50 km since this one.
- 1.6 8 km SW of Vernonia, Oregon
- 1.8 3 km E of Kalama, Washington
- 1.5 3 km WSW of Kalama, Washington
- 1.5 11 km ENE of East Cathlamet, Washington
- 1.5 6 km NW of Winlock, Washington
- 1.6 4 km NNE of Kalama, Washington
- 2.0 3 km NNE of Winlock, Washington
- 1.8 4 km NW of Winlock, Washington
- 1.6 10 km SSE of Toledo, Washington
- 1.8 10 km NE of Castle Rock, Washington
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.