QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

9 km SSE of Crawfordsville, Oregon

· 9.9 km deep · released about 6.8 lb of TNT

10 km30 km60 km120 km N Linn County 33 kmLane County 39 kmBenton County 53 kmMarion County 73 kmPolk County 83 kmLincoln County 95 kmClackamas County 111 kmDouglas County 113 kmYamhill County 115 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
9.9 km below the surface
Felt
no reports yet
Nearest
Linn County, 33 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 297 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 6.8 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 2,200,000× 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 6.8 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 44.2730, -122.8300. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Linn County, OR 33 km (21 mi) SW of here earthquakes near Linn County
Lane County, OR 39 km (24 mi) N of here earthquakes near Lane County
Benton County, OR 53 km (33 mi) ESE of here earthquakes near Benton County
Marion County, OR 73 km (45 mi) SSW of here earthquakes near Marion County
Polk County, OR 83 km (52 mi) SSE of here earthquakes near Polk County
Lincoln County, OR 95 km (59 mi) ESE of here earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 0.4 24 km ENE of Unity, Oregon
  2. 1.5 6 km SSE of Monroe, Oregon
  3. 1.8 1 km ESE of Springfield, Oregon
  4. 1.8 5 km NW of Lacomb, Oregon
  5. 1.6 5 km NW of Lacomb, Oregon
  6. 1.8 5 km SSE of Monroe, Oregon
  7. 1.7 14 km NE of Springfield, Oregon
  8. 2.0 6 km W of Lacomb, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2022-10-07 — it released about 17,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.