QuakeIndex

Earthquake · reviewed by a seismologist

M 4.5mw

11km N of Cabazon, CA

· 13 km deep · released about 82 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 79 kmOrange County 100 kmSan Bernardino County 108 kmSan Diego County 110 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 4.5 (mw)
Depth
13 km below the surface
Felt
12344 reports · strongest reported intensity V
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Nearest
Riverside County, 79 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2122 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 12344 people have reported feeling it to USGS.

How big was it?

This earthquake released about 82 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 2,100× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 92× the energy of this one
  3. Magna, Utah 2020 M 5.7 65× the energy of this one
  4. This earthquake M 4.5 about 82 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 170× more

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 34.0160, -116.7798. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 79 km (49 mi) WNW of here earthquakes near Riverside County
Orange County, CA 100 km (62 mi) ENE of here earthquakes near Orange County
San Bernardino County, CA 108 km (67 mi) SSW of here earthquakes near San Bernardino County
San Diego County, CA 110 km (69 mi) N of here earthquakes near San Diego County

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

Aftershocks so far

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

  1. 1.7 6km SW of Cabazon, CA
  2. 2.5 7km NNE of Green Acres, CA
  3. 2.1 12km NW of Big Bear Lake, CA
  4. 2.2 5km SE of Loma Linda, CA
  5. 1.9 6km N of Moreno Valley, CA
  6. 1.5 13km NNE of Thousand Palms, CA
  7. 3.8 13km NNE of Thousand Palms, CA
  8. 1.9 13km NNE of Cabazon, CA
  9. 3.0 12km NNE of Cabazon, CA
  10. 1.6 8km NNE of Cabazon, CA
  11. 1.9 6km E of Calimesa, CA
  12. 2.9 13km N of Cabazon, CA
  13. 2.9 4km NE of Anza, CA
  14. 2.5 5km S of Banning, CA
  15. 1.9 5km NE of Anza, 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 4.4 on 2016-01-06.

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

On USGS

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