QuakeIndex

explosion · reviewed by a seismologist

M 2.2ml

12 km ESE of Ocean Park, Washington

· -0.3 km deep · released about 52 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pacific County 14 kmWahkiakum County 41 kmClatsop County 51 kmGrays Harbor County 73 kmColumbia County 85 kmThurston County 97 kmCowlitz County 98 kmTillamook County 112 kmMason County 113 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 2.2 (ml)
Depth
-0.3 km below the surface
Felt
no reports yet
Nearest
Pacific County, 14 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 553 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 52 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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 46.4617, -123.8965. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pacific County, WA 14 km (9 mi) SW of here earthquakes near Pacific County
Wahkiakum County, WA 41 km (25 mi) WNW of here earthquakes near Wahkiakum County
Clatsop County, OR 51 km (32 mi) NNW of here earthquakes near Clatsop County
Grays Harbor County, WA 73 km (45 mi) S of here earthquakes near Grays Harbor County
Columbia County, OR 85 km (53 mi) NW of here earthquakes near Columbia County
Thurston County, WA 97 km (60 mi) WSW of here earthquakes near Thurston County

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

Aftershocks so far

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

  1. 1.7 14 km S of Cosmopolis, Washington
  2. 1.5 10 km NNE of Tokeland, Washington
  3. 1.8 3 km WSW of South Bend, Washington
  4. 1.8 3 km S of Willapa, Washington
  5. 2.6 5 km WSW of Pe Ell, Washington
  6. 1.9 12 km SSE of Cosmopolis, Washington
  7. 1.9 12 km SW of Lebam, Washington
  8. 1.9 5 km NW of Westport, Oregon
  9. 1.5 17 km NNW of Pe Ell, Washington
  10. 2.0 14 km SSE of Cosmopolis, Washington
  11. 1.7 12 km SSE of Cosmopolis, Washington
  12. 1.6 2 km NNE of Raymond, Washington
  13. 1.5 17 km SSE of Montesano, Washington
  14. 1.6 5 km NW of Pe Ell, Washington
  15. 1.5 8 km SSW of Cosmopolis, 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.