QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

8km NE of Indio, CA

· 5.5 km deep · released about 91 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 15 kmSan Diego County 101 kmImperial 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 2.3 (ml)
Depth
5.5 km below the surface
Felt
2 reports · strongest reported intensity IV
Nearest
Riverside County, 15 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1511 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 91 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 10× the energy of this one
  4. This earthquake M 2.3 about 91 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 33.7742, -116.1548. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 15 km (9 mi) WNW of here earthquakes near Riverside County
San Diego County, CA 101 km (63 mi) NE of here earthquakes near San Diego County
Imperial County, CA 110 km (69 mi) NW of here earthquakes near Imperial County

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

Aftershocks so far

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

  1. 2.2 6 km NE of Anza, CA
  2. 1.8 6km NE of Anza, CA
  3. 2.1 5 km NE of Anza, CA
  4. 2.1 5 km NE of Anza, CA
  5. 1.9 14km NE of Indio, CA
  6. 2.9 15km NNE of Borrego Springs, CA
  7. 1.6 12km NNE of Borrego Springs, CA
  8. 2.0 16km NE of Borrego Springs, CA
  9. 2.6 15km NE of Borrego Springs, CA
  10. 1.9 18km ESE of Anza, CA
  11. 1.9 10km S of Joshua Tree, CA
  12. 1.7 13km ESE of Anza, CA
  13. 1.6 11km NE of Indio, CA
  14. 1.7 3km SE of Yucca Valley, CA
  15. 1.6 16km N of Indio, 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 5.2 on 2016-06-10 — it released about 20,000 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.