QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

29 km W of Long Beach, Washington

· 34 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pacific County 54 kmClatsop County 68 kmWahkiakum County 78 kmGrays Harbor County 95 kmTillamook County 114 kmColumbia County 114 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 2.4 (ml)
Depth
34 km below the surface
Felt
no reports yet
Nearest
Pacific County, 54 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1755 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× the energy of this one
  4. This earthquake M 2.4 about 120 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 46.3668, -124.4327. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pacific County, WA 54 km (34 mi) WSW of here earthquakes near Pacific County
Clatsop County, OR 68 km (42 mi) NW of here earthquakes near Clatsop County
Wahkiakum County, WA 78 km (48 mi) W of here earthquakes near Wahkiakum County
Grays Harbor County, WA 95 km (59 mi) SSW of here earthquakes near Grays Harbor County
Tillamook County, OR 114 km (71 mi) NNW of here earthquakes near Tillamook County
Columbia County, OR 114 km (71 mi) WNW of here earthquakes near Columbia County

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

Aftershocks so far

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

  1. 1.4 20 km SW of Grayland, Washington
  2. 1.8 41 km WNW of Cannon Beach, Oregon
  3. 2.0 69 km W of Ocean Park, Washington
  4. 2.1 68 km WSW of Ilwaco, Washington
  5. 1.8 21 km WNW of Long Beach, Washington
  6. 2.1 9 km SW of Tokeland, 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.