QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

8km N of West Sacramento, CA

· 20 km deep · released about 62 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sacramento County 29 kmYolo County 31 kmSutter County 44 kmSolano County 55 kmNapa County 70 kmYuba County 71 kmAmador County 81 kmColusa County 83 kmSan Joaquin County 84 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 2.2 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Sacramento County, 29 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1375 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 62 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 240,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 170,000× the energy of this one
  3. Around the size people start to feel M 3.0 15× the energy of this one
  4. This earthquake M 2.2 about 62 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 38.6557, -121.5462. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sacramento County, CA 29 km (18 mi) NW of here earthquakes near Sacramento County
Yolo County, CA 31 km (19 mi) E of here earthquakes near Yolo County
Sutter County, CA 44 km (28 mi) SSE of here earthquakes near Sutter County
Solano County, CA 55 km (34 mi) NE of here earthquakes near Solano County
Napa County, CA 70 km (43 mi) ENE of here earthquakes near Napa County
Yuba County, CA 71 km (44 mi) SSW of here earthquakes near Yuba County

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

Aftershocks so far

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

  1. 1.8 1 km WSW of Granite Bay, CA
  2. 2.1 2 km WSW of Granite Bay, CA
  3. 2.6 2 km NW of Granite Bay, CA
  4. 2.2 9 km SSW of South Yuba City, CA
  5. 1.9 13 km NNW of Rio Vista, CA
  6. 2.4 5 km NE of Dunnigan, CA
  7. 1.6 5 km WSW of Dunnigan, CA
  8. 2.4 4 km SSW of Dunnigan, CA
  9. 2.3 7 km WSW of Dunnigan, CA
  10. 2.1 8 km WSW of Dunnigan, CA
  11. 2.1 6 km of Dunnigan, CA
  12. 2.2 8 km WSW of Dunnigan, CA
  13. 2.3 7 km W of Dunnigan, CA
  14. 2.2 5 km SSW of Dunnigan, CA
  15. 2.3 7 km SSE of Elmira, 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.