QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Davis, CA

No earthquake was likely felt in Davis in the 24 hours to 1:27 am PST (09:27 UTC). The last one was M 4.2, 107 km (66 mi) WNW, at 7:40 pm PDT on 28 July 2026, estimated intensity II (weak) in town; 240 felt reports to USGS. Every earthquake near Davis

This page: a magnitude 2.0 earthquake was recorded 6 km (4 mi) west-northwest of Davis, CA, at 4:02 pm PDT on 13 October 2022 (23:02 UTC), 7.7 km deep.

USGS: 6km WNW of Davis, CA

29 km (18 mi) W of Sacramento, CA · 6 km (4 mi) W of Davis, CA

4:02 pm PDT, Oct 13, 2022 · · 7.7 km deep · released about 35 lb of TNT

10 km30 km60 km120 km N Yolo County 16 kmSolano County 34 kmSacramento County 42 kmNapa County 46 kmSutter County 54 kmContra Costa County 72 kmColusa County 79 kmSan Joaquin County 83 kmYuba County 89 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
4:02 pm PDT on 13 October 2022 ()
Where
6 km (4 mi) west-northwest of Davis, CA · earthquakes near Davis
Magnitude
M 2.0 (md)
Depth
7.7 km below the surface
Felt
no reports yet
Nearest
Yolo County, 16 km NNW
Nearest mapped fault
Great Valley thrust fault system, 17 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1490 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 15 km (9 mi) from the epicentre. In Davis, 6 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.

Likely felt in: Davis 6 km, intensity II · Dixon 12 km, intensity II · Monument Hills 14 km, intensity II · Woodland 14 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 35 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 5.8 440,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 310,000× the energy of this one
  3. Around the size people start to feel M 3.0 28× the energy of this one
  4. This earthquake M 2.0 about 35 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 lists one earthquake of M5 or more within 50 km:

  1. 5.4 South of Elmira, California · 30 km SSW of this epicentre

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 38.5563, -121.8045. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Yolo County, CA 16 km (10 mi) NNW earthquakes near Yolo County
Solano County, CA 34 km (21 mi) SSW earthquakes near Solano County
Sacramento County, CA 42 km (26 mi) ESE earthquakes near Sacramento County
Napa County, CA 46 km (28 mi) W earthquakes near Napa County
Sutter County, CA 54 km (34 mi) N earthquakes near Sutter County
Contra Costa County, CA 72 km (45 mi) S earthquakes near Contra Costa County

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

Aftershocks so far

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

  1. 2.5 12 km WSW of Lincoln, CA
  2. 2.3 13 km NNE of Rio Linda, CA
  3. 1.6 16 km NE of Napa, CA
  4. 2.8 11 km WSW of Lincoln, CA
  5. 2.2 13 km WSW of Lincoln, CA
  6. 2.1 12 km NW of Roseville, CA
  7. 1.6 14 km NNE of Napa, CA
  8. 1.8 11 km SW of Lincoln, CA
  9. 2.2 12 km WSW of Lincoln, CA
  10. 1.6 11 km E of Yountville, CA
  11. 1.6 14 km E of Angwin, CA
  12. 1.7 13 km NNE of Yountville, CA
  13. 2.0 3 km SSE of Vacaville, CA
  14. 1.6 12 km ENE of Yountville, CA
  15. 2.5 4 km SSE of Rio Vista, 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.