QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

1 km S of Tillamook, Oregon

· 18 km deep · released about 150 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tillamook County 7 kmYamhill County 47 kmWashington County 60 kmClatsop County 66 kmPolk County 70 kmColumbia County 81 kmLincoln County 89 kmWahkiakum County 100 kmBenton County 111 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 2.5 (ml)
Depth
18 km below the surface
Felt
17 reports · strongest reported intensity III
Nearest
Tillamook County, 7 km E
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. 17 people have reported feeling it to USGS.

How big was it?

This earthquake released about 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 99,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 70,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.2× the energy of this one
  4. This earthquake M 2.5 about 150 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 45.4438, -123.8487. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tillamook County, OR 7 km (4 mi) W of here earthquakes near Tillamook County
Yamhill County, OR 47 km (29 mi) WNW of here earthquakes near Yamhill County
Washington County, OR 60 km (37 mi) WSW of here earthquakes near Washington County
Clatsop County, OR 66 km (41 mi) S of here earthquakes near Clatsop County
Polk County, OR 70 km (43 mi) NNW of here earthquakes near Polk County
Columbia County, OR 81 km (51 mi) SW of here earthquakes near Columbia County

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

Aftershocks so far

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

  1. 1.9 21 km W of Forest Grove, Oregon
  2. 1.6 15 km ESE of Wheeler, Oregon
  3. 1.6 9 km E of Wheeler, Oregon
  4. 2.2 10 km W of Cape Meares, Oregon
  5. 1.6 2 km SW of Oceanside, Oregon
  6. 1.5 2 km NW of Sheridan, Oregon
  7. 1.6 24 km NNW of Sheridan, Oregon
  8. 1.6 13 km E of Wheeler, Oregon
  9. 2.0 16 km W of Forest Grove, Oregon
  10. 1.6 21 km W of Forest Grove, Oregon
  11. 1.5 8 km NNE of Nehalem, Oregon
  12. 1.6 16 km WNW of McMinnville, Oregon
  13. 2.0 0 km NE of Rose Lodge, Oregon
  14. 1.7 10 km SSW of Netarts, Oregon
  15. 1.6 3 km SE of Beaver, 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.