QuakeIndex

explosion · reviewed by a seismologist

M 1.9ml

9 km N of Klamath Falls, Oregon

· -1.4 km deep · released about 20 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Klamath County 44 kmJackson County 73 kmSiskiyou County 100 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
-1.4 km below the surface
Felt
no reports yet
Nearest
Klamath County, 44 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1461 days ago

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

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 20 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 5.8 760,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 540,000× the energy of this one
  3. Around the size people start to feel M 3.0 48× the energy of this one
  4. This earthquake M 1.9 about 20 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 42.3097, -121.8035. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Klamath County, OR 44 km (27 mi) SSW of here earthquakes near Klamath County
Jackson County, OR 73 km (45 mi) E of here earthquakes near Jackson County
Siskiyou County, CA 100 km (62 mi) NE of here earthquakes near Siskiyou County
Modoc County, CA 120 km (75 mi) NW of here earthquakes near Modoc County
Lake County, OR 127 km (79 mi) WSW of here earthquakes near Lake County
Douglas County, OR 155 km (96 mi) SE of here earthquakes near Douglas County

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

Aftershocks so far

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

  1. 1.0 18 km WNW of Klamath Falls, Oregon
  2. 1.9 10 km NNW of Klamath Falls, Oregon
  3. 2.1 5 km SSW of Merrill, Oregon
  4. 2.0 11 km NNW of Klamath Falls, Oregon
  5. 2.7 10 km E of Bonanza, Oregon
  6. 1.6 11 km NNW of Klamath Falls, Oregon
  7. 2.2 5 km W of Merrill, Oregon
  8. 1.6 23 km WSW of Klamath Falls, Oregon
  9. 1.6 25 km WNW of Klamath Falls, Oregon
  10. 1.8 16 km ESE of Dorris, California
  11. 1.7 10 km NNW of Klamath Falls, Oregon
  12. 1.7 26 km WNW of Klamath Falls, Oregon
  13. 1.6 10 km WSW of Klamath Falls, Oregon
  14. 1.6 7 km WSW of Klamath Falls, Oregon
  15. 2.4 4 km E of Bonanza, 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

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