QuakeIndex

Earthquake · reviewed by a seismologist

M 0.3md

32 km NE of Amboy, Washington

· 6.9 km deep · released about 0.094 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Skamania County 16 kmCowlitz County 43 kmClark County 46 kmLewis County 56 kmMultnomah County 66 kmHood River County 75 kmColumbia County 76 kmWashington County 97 kmWahkiakum County 102 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 0.3 (md)
Depth
6.9 km below the surface
Felt
no reports yet
Nearest
Skamania County, 16 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 22 hours 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 0.094 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 160,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 10,000× the energy of this one
  4. This earthquake M 0.3 about 0.094 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 46.1043, -122.1303. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Skamania County, WA 16 km (10 mi) WNW of here earthquakes near Skamania County
Cowlitz County, WA 43 km (27 mi) ESE of here earthquakes near Cowlitz County
Clark County, WA 46 km (29 mi) NE of here earthquakes near Clark County
Lewis County, WA 56 km (35 mi) SSE of here earthquakes near Lewis County
Multnomah County, OR 66 km (41 mi) NNE of here earthquakes near Multnomah County
Hood River County, OR 75 km (47 mi) NNW of here earthquakes near Hood River County

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

Aftershocks so far

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

  1. 1.3 20 km E of Castle Rock, Washington
  2. 0.2 37 km NNE of Amboy, Washington
  3. 0.5 38 km NNE of Amboy, Washington
  4. 1.5 5 km NNW of Venersborg, Washington
  5. 0.7 5 km SSW of Morton, Washington
  6. 0.6 38 km NNE of Amboy, Washington
  7. 1.7 18 km N of Amboy, 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.