QuakeIndex

Earthquake · reviewed by a seismologist

M 4.3mw

20 km NNE of Indio, CA

· 3.7 km deep · released about 37 tons of TNT

10 km30 km60 km120 km N Riverside County 24 kmSan Bernardino County 106 kmSan Diego County 113 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 4.3 (mw)
Depth
3.7 km below the surface
Felt
1516 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
Riverside County, 24 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 87 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 1516 people have reported feeling it to USGS.

How big was it?

This earthquake released about 37 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 4,600× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 210× the energy of this one
  3. Magna, Utah 2020 M 5.7 150× the energy of this one
  4. This earthquake M 4.3 about 37 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 77× 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 33.9002, -116.1702. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 24 km (15 mi) NW of here earthquakes near Riverside County
San Bernardino County, CA 106 km (66 mi) S of here earthquakes near San Bernardino County
San Diego County, CA 113 km (70 mi) NNE of here earthquakes near San Diego County
Imperial County, CA 122 km (76 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

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

  1. 1.6 14 km ENE of Indio, CA
  2. 2.0 23 km ENE of Thermal, CA
  3. 1.5 20 km N of Indio, CA
  4. 1.9 18 km NNE of Indio, CA
  5. 2.3 17 km NNE of Indio, CA
  6. 1.8 17 km NNE of Indio, CA
  7. 1.7 17 km NNE of Indio, CA
  8. 2.3 20 km NNE of Indio, CA
  9. 2.3 21 km NNE of Indio, CA
  10. 1.8 17 km NNE of Indio, CA
  11. 1.5 18 km NNE of Indio, CA
  12. 1.6 19 km N of Indio, CA
  13. 2.5 17 km NNE of Indio, CA
  14. 1.6 17 km NNE of Indio, CA
  15. 2.8 17 km NNE 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 4.9 on 2026-01-20 — it released about 10 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.