QuakeIndex

explosion · reviewed by a seismologist

M 2.0ml

19 km SE of Toledo, Washington

· -0.6 km deep · released about 35 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cowlitz County 14 kmLewis County 36 kmColumbia County 54 kmWahkiakum County 59 kmClark County 63 kmSkamania County 64 kmThurston County 69 kmClatsop County 87 kmMultnomah County 89 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 2.0 (ml)
Depth
-0.6 km below the surface
Felt
no reports yet
Nearest
Cowlitz County, 14 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 560 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 35 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 440,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 310,000× the energy of this one
  3. Around the size people start to feel M 3.0 28× the energy of this one
  4. This earthquake M 2.0 about 35 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 46.3265, -122.6597. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cowlitz County, WA 14 km (9 mi) N of here earthquakes near Cowlitz County
Lewis County, WA 36 km (22 mi) SW of here earthquakes near Lewis County
Columbia County, OR 54 km (33 mi) NE of here earthquakes near Columbia County
Wahkiakum County, WA 59 km (37 mi) E of here earthquakes near Wahkiakum County
Clark County, WA 63 km (39 mi) NNW of here earthquakes near Clark County
Skamania County, WA 64 km (40 mi) WNW of here earthquakes near Skamania County

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

Aftershocks so far

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

  1. 1.9 5 km ESE of Mossyrock, Washington
  2. 1.8 5 km ESE of Mossyrock, Washington
  3. 1.7 12 km SSW of Alder, Washington
  4. 1.9 3 km NW of Winlock, Washington
  5. 1.6 6 km ESE of Mossyrock, Washington
  6. 1.6 2 km NNE of Columbia City, Oregon
  7. 1.7 13 km N of Onalaska, Washington
  8. 2.3 38 km SSE of Morton, Washington
  9. 1.7 18 km E of West Side Highway, Washington
  10. 1.6 19 km NE of Kalama, Washington
  11. 1.6 3 km W of Winlock, Washington
  12. 1.6 21 km ENE of Kalama, Washington
  13. 1.5 27 km NNW of Amboy, Washington
  14. 1.9 6 km NE of Mossyrock, Washington
  15. 1.6 6 km ESE of Mossyrock, 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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