QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

6km W of Round Mountain, CA

· 15 km deep · released about 27 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 6 kmTehama County 78 kmTrinity County 94 kmSiskiyou County 97 kmLassen 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 2.0 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Shasta County, 6 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3056 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 27 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 560,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 390,000× the energy of this one
  3. Around the size people start to feel M 3.0 35× the energy of this one
  4. This earthquake M 2.0 about 27 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 40.8085, -122.0180. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 6 km (4 mi) NNE of here earthquakes near Shasta County
Tehama County, CA 78 km (48 mi) NNE of here earthquakes near Tehama County
Trinity County, CA 94 km (58 mi) ENE of here earthquakes near Trinity County
Siskiyou County, CA 97 km (60 mi) SSE of here earthquakes near Siskiyou County
Lassen County, CA 118 km (73 mi) W of here earthquakes near Lassen County
Plumas County, CA 136 km (84 mi) NW of here earthquakes near Plumas County

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

Aftershocks so far

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

  1. 1.6 23km SSE of Dunsmuir, CA
  2. 1.8 22km SSE of Dunsmuir, CA
  3. 1.6 7km WSW of Manton, CA
  4. 1.8 12km W of Manton, CA
  5. 2.4 6km NW of Big Bend, CA
  6. 1.6 9km NE of Shasta Lake, CA
  7. 2.1 6km NW of Big Bend, CA
  8. 1.5 12km SE of Millville, CA
  9. 1.7 13km W of Manton, CA
  10. 1.7 8km NNE of Shasta Lake, CA
  11. 1.6 27km NNE of Shasta Lake, CA
  12. 1.7 17km E of McCloud, CA
  13. 2.1 8km NW of Montgomery Creek, CA
  14. 1.6 6km ESE of Bella Vista, CA
  15. 2.4 28km N of Shasta Lake, 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.