QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

12 km NE of Burney, CA

· 13 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 46 kmLassen County 84 kmModoc County 100 kmSiskiyou County 107 kmTehama County 108 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 2.8 (md)
Depth
13 km below the surface
Felt
3 reports · strongest reported intensity IV
Nearest
Shasta County, 46 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1045 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 40.9590, -121.5697. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 46 km (28 mi) ENE of here earthquakes near Shasta County
Lassen County, CA 84 km (52 mi) WNW of here earthquakes near Lassen County
Modoc County, CA 100 km (62 mi) SW of here earthquakes near Modoc County
Siskiyou County, CA 107 km (66 mi) SE of here earthquakes near Siskiyou County
Tehama County, CA 108 km (67 mi) NNE of here earthquakes near Tehama County
Plumas County, CA 125 km (77 mi) NNW of here earthquakes near Plumas County

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

Aftershocks so far

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

  1. 1.7 7 km WSW of Round Mountain, CA
  2. 2.4 4 km W of McArthur, CA
  3. 2.0 38 km SSE of Fall River Mills, CA
  4. 2.0 13 km WNW of Burney, CA
  5. 1.6 40 km SSE of Fall River Mills, CA
  6. 1.8 17 km SE of McCloud, CA
  7. 1.5 15 km S of McCloud, CA
  8. 1.5 16 km NNE of Shingletown, CA
  9. 2.0 8 km NE of Big Bend, CA
  10. 1.8 16 km NNE of Shingletown, CA
  11. 1.7 16 km NNE of Shingletown, CA
  12. 2.3 14 km N of Shingletown, CA
  13. 2.2 11 km WSW of Fall River Mills, CA
  14. 2.4 11 km WNW of Burney, CA
  15. 2.2 15 km N of Viola, 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 1,900 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.