QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

9 km E of Wheeler, Oregon

· -0.3 km deep · released about 6.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tillamook County 26 kmClatsop County 37 kmWashington County 54 kmColumbia County 59 kmYamhill County 60 kmWahkiakum County 72 kmPolk County 93 kmPacific County 96 kmClark County 99 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 1.6 (ml)
Depth
-0.3 km below the surface
Felt
no reports yet
Nearest
Tillamook County, 26 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 192 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 6.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 45.6937, -123.7567. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tillamook County, OR 26 km (16 mi) N of here earthquakes near Tillamook County
Clatsop County, OR 37 km (23 mi) S of here earthquakes near Clatsop County
Washington County, OR 54 km (33 mi) WNW of here earthquakes near Washington County
Columbia County, OR 59 km (37 mi) WSW of here earthquakes near Columbia County
Yamhill County, OR 60 km (37 mi) NW of here earthquakes near Yamhill County
Wahkiakum County, WA 72 km (44 mi) SSW of here earthquakes near Wahkiakum County

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

Aftershocks so far

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

  1. 1.6 8 km SW of Vernonia, Oregon
  2. 1.9 21 km W of Forest Grove, Oregon
  3. 1.6 15 km ESE of Wheeler, 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.