QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

7 km SSW of Ocean Park, Washington

· 27 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pacific County 28 kmWahkiakum County 54 kmClatsop County 55 kmGrays Harbor County 78 kmColumbia County 96 kmThurston County 112 kmTillamook County 112 kmCowlitz County 112 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 1.6 (ml)
Depth
27 km below the surface
Felt
no reports yet
Nearest
Pacific County, 28 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3064 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 9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 9 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 46.4365, -124.1010. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pacific County, WA 28 km (17 mi) WSW of here earthquakes near Pacific County
Wahkiakum County, WA 54 km (34 mi) WNW of here earthquakes near Wahkiakum County
Clatsop County, OR 55 km (34 mi) NNW of here earthquakes near Clatsop County
Grays Harbor County, WA 78 km (49 mi) SSW of here earthquakes near Grays Harbor County
Columbia County, OR 96 km (60 mi) NW of here earthquakes near Columbia County
Thurston County, WA 112 km (69 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

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

  1. 1.4 20 km SW of Grayland, Washington
  2. 1.7 14 km S of Cosmopolis, Washington
  3. 1.5 10 km NNE of Tokeland, Washington
  4. 1.8 3 km WSW of South Bend, Washington
  5. 1.8 3 km S of Willapa, Washington
  6. 1.9 12 km SW of Lebam, Washington
  7. 1.6 2 km NNE of Raymond, Washington
  8. 1.8 21 km WNW of Long Beach, Washington
  9. 1.6 near the coast of Washington
  10. 2.1 9 km SW of Tokeland, Washington
  11. 2.4 29 km W of Long Beach, Washington
  12. 2.0 7 km E of Tokeland, Washington
  13. 1.9 7 km SE of Jeffers Garden, Oregon
  14. 1.7 17 km WSW of Grayland, Washington
  15. 1.9 11 km ESE of Markham, 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.