QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

11 km WNW of Burney, CA

· 16 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 26 kmTehama County 94 kmSiskiyou County 98 kmLassen County 101 kmTrinity County 115 kmModoc County 118 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 2.4 (md)
Depth
16 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Shasta County, 26 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 940 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 100,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.1× the energy of this one
  4. This earthquake M 2.4 about 100 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 40.9028, -121.7933. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 26 km (16 mi) NE of here earthquakes near Shasta County
Tehama County, CA 94 km (58 mi) NNE of here earthquakes near Tehama County
Siskiyou County, CA 98 km (61 mi) SE of here earthquakes near Siskiyou County
Lassen County, CA 101 km (63 mi) WNW of here earthquakes near Lassen County
Trinity County, CA 115 km (71 mi) ENE of here earthquakes near Trinity County
Modoc County, CA 118 km (73 mi) SW of here earthquakes near Modoc County

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

Aftershocks so far

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

  1. 2.4 10 km NW of Shingletown, CA
  2. 1.8 9 km NE of Shasta Lake, CA
  3. 1.6 10 km NW of Shingletown, CA
  4. 1.6 10 km NW of Shingletown, CA
  5. 2.6 10 km NW of Shingletown, CA
  6. 1.7 10 km NW of Shingletown, CA
  7. 1.8 12 km NE of Shingletown, CA
  8. 2.9 23 km ENE of Viola, CA
  9. 1.5 23 km ENE of Viola, CA
  10. 1.9 23 km ENE of Viola, CA
  11. 1.6 25 km ENE of Viola, CA
  12. 1.9 9 km NE of Shasta Lake, CA
  13. 1.9 6 km SE of Burney, CA
  14. 1.7 7 km WSW of Round Mountain, CA
  15. 2.4 4 km W of McArthur, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.0 on 2023-09-08 — it released about 8,800 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.