QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

4km NNW of Yucca Valley, CA

· 5.9 km deep · released about 52 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 62 kmSan Bernardino County 82 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 (ml)
Depth
5.9 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Riverside County, 62 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1949 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 52 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 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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 34.1510, -116.4462. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 62 km (39 mi) NW of here earthquakes near Riverside County
San Bernardino County, CA 82 km (51 mi) SSW of here earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 1.8 6km NW of Desert Hot Springs, CA
  2. 2.7 9km NNW of Big Bear City, CA
  3. 1.7 11km SSE of Big Bear Lake, CA
  4. 1.5 40km SW of Ludlow, CA
  5. 1.9 10km WSW of Morongo Valley, CA
  6. 1.5 11km ENE of Yucaipa, CA
  7. 2.0 14km ENE of Yucaipa, CA
  8. 2.4 28km NNW of Yucca Valley, CA
  9. 1.6 12km E of Yucaipa, CA
  10. 1.9 11km SSE of Big Bear Lake, CA
  11. 1.5 9km N of Cabazon, CA
  12. 1.8 9km SSE of Cabazon, CA
  13. 2.1 3km SW of Morongo Valley, CA
  14. 1.9 27km NE of Indio, CA
  15. 1.8 13km S of Twentynine Palms, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2018-05-08 — it released about 3,100 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.