QuakeIndex

explosion · reviewed by a seismologist

M 1.9ml

4 km ENE of Lafayette, Oregon

· -0.1 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yamhill County 20 kmWashington County 32 kmPolk County 48 kmMarion County 56 kmTillamook County 58 kmMultnomah County 60 kmClackamas County 69 kmClark County 72 kmColumbia County 75 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 1.9 (ml)
Depth
-0.1 km below the surface
Felt
no reports yet
Nearest
Yamhill County, 20 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1865 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 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 45.2658, -123.0667. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yamhill County, OR 20 km (12 mi) E of here earthquakes near Yamhill County
Washington County, OR 32 km (20 mi) S of here earthquakes near Washington County
Polk County, OR 48 km (30 mi) NNE of here earthquakes near Polk County
Marion County, OR 56 km (35 mi) NW of here earthquakes near Marion County
Tillamook County, OR 58 km (36 mi) ESE of here earthquakes near Tillamook County
Multnomah County, OR 60 km (37 mi) WSW of here earthquakes near Multnomah 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. 1.7 13 km N of Willamina, Oregon
  2. 1.7 3 km SSW of Scotts Mills, Oregon
  3. 1.9 5 km SSW of Aloha, Oregon
  4. 2.4 10 km N of Sheridan, Oregon
  5. 1.6 7 km ESE of Scotts Mills, Oregon
  6. 1.6 3 km WNW of Lafayette, Oregon
  7. 1.6 3 km WSW of Stafford, Oregon
  8. 1.8 1 km NNW of Dayton, Oregon
  9. 1.8 8 km S of Scappoose, Oregon
  10. 1.9 2 km ENE of Silverton, Oregon
  11. 1.6 2 km N of Woodburn, Oregon
  12. 1.6 7 km SSW of Dayton, Oregon
  13. 1.8 4 km NE of Lafayette, Oregon
  14. 1.6 23 km ESE of Tillamook, Oregon
  15. 1.7 6 km WNW of Dallas, 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.