QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

5 km WSW of Pe Ell, Washington

· 40 km deep · released about 280 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wahkiakum County 28 kmPacific County 32 kmThurston County 59 kmClatsop County 64 kmCowlitz County 66 kmColumbia County 71 kmGrays Harbor County 72 kmLewis County 76 kmMason County 91 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.6 (ml)
Depth
40 km below the surface
Felt
11 reports · strongest reported intensity II
Nearest
Wahkiakum County, 28 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 193 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 11 people have reported feeling it to USGS.

How big was it?

This earthquake released about 280 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 53,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 38,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.3× the energy of this one
  4. This earthquake M 2.6 about 280 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 46.5470, -123.3660. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Wahkiakum County, WA 28 km (18 mi) N of here earthquakes near Wahkiakum County
Pacific County, WA 32 km (20 mi) E of here earthquakes near Pacific County
Thurston County, WA 59 km (37 mi) SW of here earthquakes near Thurston County
Clatsop County, OR 64 km (40 mi) NNE of here earthquakes near Clatsop County
Cowlitz County, WA 66 km (41 mi) NW of here earthquakes near Cowlitz County
Columbia County, OR 71 km (44 mi) NNW of here earthquakes near Columbia County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

24 earthquakes have been recorded within 50 km since this one.

  1. 1.6 6 km NE of Rochester, Washington
  2. 1.5 11 km ENE of East Cathlamet, Washington
  3. 1.5 6 km NW of Winlock, Washington
  4. 1.7 1 km E of Oakville, Washington
  5. 2.0 3 km NNE of Winlock, Washington
  6. 1.7 14 km S of Cosmopolis, Washington
  7. 1.8 4 km NW of Winlock, Washington
  8. 1.6 10 km SSE of Toledo, Washington
  9. 1.8 7 km NNW of Pe Ell, Washington
  10. 1.8 10 km NE of Castle Rock, Washington
  11. 1.6 6 km NNW of Clatskanie, Oregon
  12. 1.5 10 km NE of Castle Rock, Washington
  13. 1.6 7 km NE of Castle Rock, Washington
  14. 1.7 10 km NE of Castle Rock, Washington
  15. 2.2 5 km WSW of Napavine, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.