QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near West Sacramento, CA

No earthquake was likely felt in West Sacramento in the 24 hours to 9:19 am PST (17:19 UTC). The last one was M 5.6, 171 km (106 mi) WNW, at 8:10 am PDT on 24 June 2026, estimated intensity III (weak) in town; 5,311 felt reports to USGS. Every earthquake near West Sacramento

This page: a magnitude 2.2 earthquake was recorded 8 km (5 mi) north of West Sacramento, CA, at 5:11 pm PST on 14 December 2022 (01:11 UTC), 20 km deep.

USGS: 8km N of West Sacramento, CA

12 km (7 mi) NW of Sacramento, CA · 11 km (7 mi) N of West Sacramento, CA

5:11 pm PST, Dec 14, 2022 · · 20 km deep · released about 62 lb of TNT

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
5:11 pm PST on 14 December 2022 ()
Where
8 km (5 mi) north of West Sacramento, CA · earthquakes near West Sacramento
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 1422 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In West Sacramento, 8 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Rio Linda, Sacramento, Elverta, North Highlands, Arden-Arcade, Fruitridge Pocket.

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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 38.6557, -121.5462. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sacramento County, CA 29 km (18 mi) SE earthquakes near Sacramento County
Yolo County, CA 31 km (19 mi) W earthquakes near Yolo County
Sutter County, CA 44 km (28 mi) NNW earthquakes near Sutter County
Solano County, CA 55 km (34 mi) SW earthquakes near Solano County
Napa County, CA 70 km (43 mi) WSW earthquakes near Napa County
Yuba County, CA 71 km (44 mi) NNE 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.