QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

4 km SE of Mill Plain, Washington

· 6.9 km deep · released about 36 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Multnomah County 8 kmClark County 18 kmWashington County 51 kmClackamas County 54 kmSkamania County 60 kmColumbia County 61 kmHood River County 63 kmCowlitz County 67 kmYamhill County 79 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
6.9 km below the surface
Felt
5 reports · strongest reported intensity III
Nearest
Multnomah County, 8 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 565 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 36 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 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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 45.6158, -122.4517. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Multnomah County, OR 8 km (5 mi) NNW of here earthquakes near Multnomah County
Clark County, WA 18 km (11 mi) S of here earthquakes near Clark County
Washington County, OR 51 km (32 mi) E of here earthquakes near Washington County
Clackamas County, OR 54 km (34 mi) NNW of here earthquakes near Clackamas County
Skamania County, WA 60 km (37 mi) SW of here earthquakes near Skamania County
Columbia County, OR 61 km (38 mi) SE of here earthquakes near Columbia County

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

Aftershocks so far

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

  1. 1.6 5 km NE of Lewisville, Washington
  2. 1.8 8 km S of Scappoose, Oregon
  3. 1.6 5 km ENE of Lewisville, Washington
  4. 1.9 3 km NNE of Deer Island, Oregon
  5. 1.9 1 km ESE of La Center, Washington
  6. 3.1 4 km WSW of Deer Island, Oregon
  7. 1.7 2 km WNW of Yacolt, Washington
  8. 1.8 2 km ENE of Brush Prairie, Washington
  9. 1.8 6 km NE of Woodland, Washington
  10. 1.7 3 km W of Columbia City, Oregon
  11. 1.7 3 km SE of Sherwood, Oregon
  12. 1.7 Washington-Oregon border region
  13. 2.2 3 km NW of Mount Hood Village, Oregon
  14. 2.0 3 km WSW of Yacolt, Washington
  15. 1.8 3 km ESE of Sherwood, Oregon

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.