QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

14km SE of Klamath, CA

· 32 km deep · released about 1,200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Del Norte County 35 kmHumboldt County 81 kmJosephine County 109 kmTrinity County 110 kmSiskiyou County 116 kmCurry County 117 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 3.1 (ml)
Depth
32 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Del Norte County, 35 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2115 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 280,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 12,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 8,800× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.3× 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 41.4370, -123.9113. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Del Norte County, CA 35 km (22 mi) S of here earthquakes near Del Norte County
Humboldt County, CA 81 km (50 mi) N of here earthquakes near Humboldt County
Josephine County, OR 109 km (68 mi) SSW of here earthquakes near Josephine County
Trinity County, CA 110 km (69 mi) NW of here earthquakes near Trinity County
Siskiyou County, CA 116 km (72 mi) W of here earthquakes near Siskiyou County
Curry County, OR 117 km (73 mi) SSE of here earthquakes near Curry County

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

Aftershocks so far

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

  1. 1.8 8 km ESE of Westhaven-Moonstone, CA
  2. 2.1 6 km NW of Somes Bar, CA
  3. 2.4 14 km SSW of Crescent City, CA
  4. 2.3 17 km NNW of Trinidad, CA
  5. 2.1 12 km NE of Westhaven-Moonstone, CA
  6. 2.5 14 km SSW of Bertsch-Oceanview, CA
  7. 2.8 18 km SSE of Klamath, CA
  8. 2.7 13 km SSW of Bertsch-Oceanview, CA
  9. 1.6 18 km W of Happy Camp, California
  10. 2.2 6 km W of Klamath, CA
  11. 2.5 17 km SSE of Klamath, CA
  12. 3.0 17 km SSE of Klamath, CA
  13. 2.5 14 km NW of Trinidad, CA
  14. 2.4 26 km SW of Klamath, CA
  15. 4.3 16 km WSW of Klamath, CA

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.