QuakeIndex

Earthquake · reviewed by a seismologist

M 3.9ml

6 km NE of Government Camp, Oregon

· 4.3 km deep · released about 12 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hood River County 19 kmClackamas County 44 kmWasco County 46 kmMultnomah County 61 kmClark County 78 kmSkamania County 79 kmSherman County 80 kmMarion County 85 kmJefferson County 87 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 3.9 (ml)
Depth
4.3 km below the surface
Felt
267 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Hood River County, 19 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1860 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 267 people have reported feeling it to USGS.

How big was it?

This earthquake released about 12 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.9 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 14,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 620× the energy of this one
  3. Magna, Utah 2020 M 5.7 440× the energy of this one
  4. This earthquake M 3.9 about 12 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 26× more

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 45.3423, -121.6935. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hood River County, OR 19 km (12 mi) S of here earthquakes near Hood River County
Clackamas County, OR 44 km (27 mi) ENE of here earthquakes near Clackamas County
Wasco County, OR 46 km (28 mi) WNW of here earthquakes near Wasco County
Multnomah County, OR 61 km (38 mi) ESE of here earthquakes near Multnomah County
Clark County, WA 78 km (48 mi) SE of here earthquakes near Clark County
Skamania County, WA 79 km (49 mi) SSE of here earthquakes near Skamania County

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

Aftershocks so far

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

  1. 1.9 8 km NNE of Government Camp, Oregon
  2. 1.6 5 km N of Mosier, Oregon
  3. 1.6 5 km ENE of Government Camp, Oregon
  4. 1.6 7 km ENE of Government Camp, Oregon
  5. 1.6 2 km E of Government Camp, Oregon
  6. 1.8 2 km E of Government Camp, Oregon
  7. 1.6 1 km E of Government Camp, Oregon
  8. 1.5 5 km NNW of White Salmon, Washington
  9. 1.8 8 km NNE of Government Camp, Oregon
  10. 1.7 1 km ESE of Chenoweth, Oregon
  11. 1.9 3 km NE of Government Camp, Oregon
  12. 1.7 2 km NNE of Wapanitia, Oregon
  13. 1.9 14 km NE of Sandy, Oregon
  14. 1.9 4 km SE of Pine Grove, Oregon
  15. 2.2 8 km NE of Wapanitia, 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.