QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

20 km E of Prospect, Oregon

· 6.7 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Klamath County 48 kmJackson County 50 kmDouglas County 97 kmJosephine County 116 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
6.7 km below the surface
Felt
no reports yet
Nearest
Klamath County, 48 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 796 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 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 42.7245, -122.2358. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Klamath County, OR 48 km (30 mi) W of here earthquakes near Klamath County
Jackson County, OR 50 km (31 mi) NE of here earthquakes near Jackson County
Douglas County, OR 97 km (61 mi) SE of here earthquakes near Douglas County
Josephine County, OR 116 km (72 mi) ENE of here earthquakes near Josephine County

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

Aftershocks so far

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

  1. 1.6 7 km WNW of Butte Falls, Oregon
  2. 1.6 25 km WNW of Klamath Falls, Oregon
  3. 1.7 7 km WNW of Butte Falls, Oregon
  4. 1.8 7 km WNW of Butte Falls, Oregon
  5. 1.7 26 km WNW of Klamath Falls, Oregon
  6. 1.5 37 km NE of Prospect, Oregon
  7. 1.7 37 km NE of Prospect, Oregon
  8. 1.6 Oregon
  9. 1.8 37 km NE of Prospect, Oregon
  10. 1.8 36 km NE of Prospect, Oregon
  11. 1.8 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.