QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

9 km SW of Tokeland, Washington

· 35 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pacific County 26 kmGrays Harbor County 54 kmWahkiakum County 65 kmClatsop County 76 kmThurston County 100 kmMason County 103 kmColumbia County 111 kmCowlitz County 119 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 2.1 (ml)
Depth
35 km below the surface
Felt
1 report
Nearest
Pacific County, 26 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1741 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.

How big was it?

This earthquake released about 43 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.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 46.6595, -124.0812. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pacific County, WA 26 km (16 mi) WNW of here earthquakes near Pacific County
Grays Harbor County, WA 54 km (34 mi) SSW of here earthquakes near Grays Harbor County
Wahkiakum County, WA 65 km (40 mi) NW of here earthquakes near Wahkiakum County
Clatsop County, OR 76 km (47 mi) NNW of here earthquakes near Clatsop County
Thurston County, WA 100 km (62 mi) WSW of here earthquakes near Thurston County
Mason County, WA 103 km (64 mi) SW of here earthquakes near Mason County

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

Aftershocks so far

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

  1. 1.4 20 km SW of Grayland, Washington
  2. 1.8 2 km WSW of Ocean City, Washington
  3. 1.7 14 km S of Cosmopolis, Washington
  4. 1.5 10 km NNE of Tokeland, Washington
  5. 1.8 3 km WSW of South Bend, Washington
  6. 1.8 3 km S of Willapa, Washington
  7. 1.9 12 km SSE of Cosmopolis, Washington
  8. 1.9 12 km SW of Lebam, Washington
  9. 2.0 14 km SSE of Cosmopolis, Washington
  10. 1.7 12 km SSE of Cosmopolis, Washington
  11. 1.8 5 km WSW of Aberdeen Gardens, Washington
  12. 1.6 2 km NNE of Raymond, Washington
  13. 1.5 8 km SSW of Cosmopolis, Washington
  14. 2.2 2 km NW of Markham, Washington
  15. 1.8 21 km WNW of Long Beach, 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.