QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Clay, CA

No earthquake was likely felt in Clay in the 24 hours to 8:57 am PST (16:57 UTC). The last one was M 5.6, 212 km (132 mi) WNW, at 8:10 am PDT on 24 June 2026, estimated intensity II (weak) in town; 5,311 felt reports to USGS. Every earthquake near Clay

This page: a magnitude 2.2 earthquake was recorded 10 km (6 mi) east-northeast of Clay, CA, at 2:12 pm PDT on 15 June 2022 (21:12 UTC), 9.7 km deep.

USGS: 10km ENE of Clay, CA

43 km (27 mi) ESE of Sacramento, CA · 29 km (18 mi) SSE of Rancho Cordova, CA

2:12 pm PDT, Jun 15, 2022 · · 9.7 km deep · released about 58 lb of TNT

10 km30 km60 km120 km N Sacramento County 28 kmAmador County 36 kmCalaveras County 47 kmSan Joaquin County 51 kmEl Dorado County 65 kmSolano County 78 kmYolo County 82 kmPlacer County 83 kmStanislaus 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
2:12 pm PDT on 15 June 2022 ()
Where
10 km (6 mi) east-northeast of Clay, CA · earthquakes near Clay
Magnitude
M 2.2 (md)
Depth
9.7 km below the surface
Felt
no reports yet
Nearest
Sacramento County, 28 km WNW
Nearest mapped fault
Foothills fault system, 12 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 1610 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 16 km (10 mi) from the epicentre. In Clay, 10 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: Ione, Dogtown, Rancho Murieta, Herald, Wilton, Sutter Creek.

How big was it?

This earthquake released about 58 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 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 38.3578, -121.0495. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sacramento County, CA 28 km (17 mi) WNW earthquakes near Sacramento County
Amador County, CA 36 km (22 mi) ENE earthquakes near Amador County
Calaveras County, CA 47 km (29 mi) ESE earthquakes near Calaveras County
San Joaquin County, CA 51 km (32 mi) SSW earthquakes near San Joaquin County
El Dorado County, CA 65 km (41 mi) NE earthquakes near El Dorado County
Solano County, CA 78 km (49 mi) W earthquakes near Solano County

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

Aftershocks so far

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

  1. 1.8 1 km WSW of Granite Bay, CA
  2. 1.8 6 km WNW of Ione, CA
  3. 2.1 2 km WSW of Granite Bay, CA
  4. 2.6 2 km NW of Granite Bay, CA
  5. 1.9 8km WNW of Ione, 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.