QuakeIndex

explosion · reviewed by a seismologist

M 2.3ml

0 km S of Banks, Oregon

· -0.4 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 6 kmColumbia County 37 kmYamhill County 43 kmClark County 52 kmTillamook County 53 kmMultnomah County 55 kmClatsop County 65 kmCowlitz County 73 kmWahkiakum County 80 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 2.3 (ml)
Depth
-0.4 km below the surface
Felt
no reports yet
Nearest
Washington County, 6 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1194 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 45.6100, -123.1123. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washington County, OR 6 km (4 mi) N of here earthquakes near Washington County
Columbia County, OR 37 km (23 mi) S of here earthquakes near Columbia County
Yamhill County, OR 43 km (27 mi) NNE of here earthquakes near Yamhill County
Clark County, WA 52 km (32 mi) WSW of here earthquakes near Clark County
Tillamook County, OR 53 km (33 mi) ENE of here earthquakes near Tillamook County
Multnomah County, OR 55 km (34 mi) W of here earthquakes near Multnomah County

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

Aftershocks so far

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

  1. 1.6 4 km NE of Lafayette, Oregon
  2. 1.6 17 km WNW of Banks, Oregon
  3. 1.6 3 km NNE of West Haven, Oregon
  4. 1.8 7 km WNW of Warren, Oregon
  5. 1.8 5 km NNE of La Center, Washington
  6. 2.0 8 km WNW of Warren, Oregon
  7. 1.7 14 km W of Deer Island, Oregon
  8. 1.7 4 km NE of Lafayette, Oregon
  9. 1.7 2 km SSE of Sherwood, Oregon
  10. 1.6 5 km S of Aloha, Oregon
  11. 1.5 7 km WNW of Forest Grove, Oregon
  12. 1.8 3 km WSW of Felida, Washington
  13. 1.6 4 km WSW of Stafford, Oregon
  14. 1.6 4 km ESE of Sherwood, Oregon
  15. 2.1 2 km ENE of Ridgefield, 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

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