QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

14 km ESE of Molalla, Oregon

· 10 km deep · released about 290 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clackamas County 17 kmMarion County 27 kmMultnomah County 48 kmLinn County 70 kmYamhill County 73 kmWashington County 73 kmHood River County 73 kmClark County 74 kmPolk County 82 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 2.7 (ml)
Depth
10 km below the surface
Felt
5 reports · strongest reported intensity II
Measured shaking
intensity II (ShakeMap)
Nearest
Clackamas County, 17 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 379 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 290 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 51,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 36,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.2× the energy of this one
  4. This earthquake M 2.7 about 290 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 45.1117, -122.4027. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clackamas County, OR 17 km (11 mi) WSW of here earthquakes near Clackamas County
Marion County, OR 27 km (17 mi) NNE of here earthquakes near Marion County
Multnomah County, OR 48 km (30 mi) S of here earthquakes near Multnomah County
Linn County, OR 70 km (44 mi) N of here earthquakes near Linn County
Yamhill County, OR 73 km (45 mi) ESE of here earthquakes near Yamhill County
Washington County, OR 73 km (46 mi) SE of here earthquakes near Washington County

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

Aftershocks so far

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

  1. 1.2 13 km SE of Scotts Mills, Oregon
  2. 2.1 8 km ESE of Molalla, Oregon
  3. 1.6 5 km SSE of Molalla, Oregon
  4. 1.5 9 km ESE of Scotts Mills, Oregon
  5. 1.6 7 km ESE of Molalla, Oregon
  6. 1.7 4 km NNW of Mount Hood Village, Oregon
  7. 2.1 10 km NNE of Sandy, Oregon
  8. 1.7 8 km S of Molalla, Oregon
  9. 1.6 2 km WSW of Stafford, Oregon
  10. 1.8 4 km SSE of Stafford, Oregon
  11. 1.7 8 km S of Molalla, Oregon
  12. 1.8 7 km SSE of Molalla, Oregon
  13. 1.6 6 km ESE of Molalla, Oregon
  14. 1.6 4 km SSW of Scotts Mills, Oregon
  15. 1.8 6 km ESE of Molalla, 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.