QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

2km NNW of Big Bend, CA

· 15 km deep · released about 26 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 33 kmSiskiyou County 80 kmTehama County 105 kmTrinity County 110 kmLassen 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 2.0 (md)
Depth
15 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Shasta County, 33 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3177 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 26 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 5.8 580,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 410,000× the energy of this one
  3. Around the size people start to feel M 3.0 36× the energy of this one
  4. This earthquake M 2.0 about 26 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 41.0387, -121.9172. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 33 km (20 mi) NNE of here earthquakes near Shasta County
Siskiyou County, CA 80 km (50 mi) SE of here earthquakes near Siskiyou County
Tehama County, CA 105 km (65 mi) NNE of here earthquakes near Tehama County
Trinity County, CA 110 km (68 mi) ENE of here earthquakes near Trinity County
Lassen County, CA 115 km (71 mi) WNW of here earthquakes near Lassen County
Modoc County, CA 118 km (73 mi) WSW 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. 1.6 27km NNE of Shasta Lake, CA
  2. 1.7 17km E of McCloud, CA
  3. 2.1 8km NW of Montgomery Creek, CA
  4. 2.4 28km N of Shasta Lake, CA
  5. 1.6 10km ENE of Mount Shasta, CA
  6. 1.9 21km SSW of Dunsmuir, CA
  7. 1.5 21km SSW of Dunsmuir, CA
  8. 1.7 9km NNE of Shasta Lake, CA
  9. 1.6 24km N of Shasta Lake, CA
  10. 1.7 22km SSW of Dunsmuir, CA
  11. 2.0 23km WNW of Montgomery Creek, CA
  12. 1.7 9km NNE of Shasta Lake, CA
  13. 1.7 9km NE of Shasta Lake, CA
  14. 2.0 14km NW of Viola, CA
  15. 1.8 9km NE 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.