QuakeIndex

explosion · reviewed by a seismologist

M 2.0ml

7 km ESE of Molalla, Oregon

· -0.4 km deep · released about 31 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clackamas County 24 kmMarion County 24 kmMultnomah County 49 kmYamhill County 67 kmWashington County 68 kmLinn County 69 kmClark County 74 kmPolk County 75 kmHood River 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
-0.4 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Clackamas County, 24 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2091 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 31 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 5.8 480,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 340,000× the energy of this one
  3. Around the size people start to feel M 3.0 31× the energy of this one
  4. This earthquake M 2.0 about 31 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 45.1097, -122.4907. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clackamas County, OR 24 km (15 mi) WSW of here earthquakes near Clackamas County
Marion County, OR 24 km (15 mi) NNE of here earthquakes near Marion County
Multnomah County, OR 49 km (30 mi) S of here earthquakes near Multnomah County
Yamhill County, OR 67 km (41 mi) ESE of here earthquakes near Yamhill County
Washington County, OR 68 km (43 mi) SE of here earthquakes near Washington County
Linn County, OR 69 km (43 mi) N of here earthquakes near Linn 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. 1.6 2 km N of Woodburn, Oregon
  2. 1.7 3 km SE of Sherwood, Oregon
  3. 2.2 3 km NW of Mount Hood Village, Oregon
  4. 2.1 Oregon
  5. 1.8 3 km ESE of Sherwood, Oregon
  6. 1.6 5 km SSW of Scotts Mills, Oregon
  7. 1.7 17 km SE of Molalla, Oregon
  8. 1.8 2 km NW of King City, Oregon
  9. 1.7 13 km S of Estacada, Oregon
  10. 1.5 3 km NW of Mount Hood Village, Oregon
  11. 1.8 4 km WNW of Mehama, Oregon
  12. 1.5 1 km NW of Wilsonville, Oregon
  13. 1.7 6 km ESE of Molalla, Oregon
  14. 1.7 13 km ESE of Scotts Mills, Oregon
  15. 1.8 2 km W of Mehama, 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.