QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

23km NNE of Indio, CA

· 9.0 km deep · released about 160 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 21 kmSan Bernardino County 106 kmSan Diego County 116 kmImperial County 118 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 2.5 (ml)
Depth
9.0 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Riverside County, 21 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1860 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 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 92,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 65,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.8× the energy of this one
  4. This earthquake M 2.5 about 160 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 33.9017, -116.1048. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 21 km (13 mi) NNW 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 116 km (72 mi) NNE of here earthquakes near San Diego County
Imperial County, CA 118 km (74 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

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

  1. 1.9 10km NW of Garnet, CA
  2. 1.6 24km WNW of Desert Center, CA
  3. 1.6 17km NE of Coachella, CA
  4. 2.4 10km ENE of Indio, CA
  5. 1.9 14km S of Joshua Tree, CA
  6. 1.5 16km NE of Coachella, CA
  7. 2.9 16km NE of Coachella, CA
  8. 1.6 20km ENE of Thermal, CA
  9. 3.1 3km NNW of Yucca Valley, CA
  10. 1.7 20km ENE of Thermal, CA
  11. 3.2 28km NE of Indio, CA
  12. 1.6 3km SSE of Yucca Valley, CA
  13. 2.0 3km ESE of Yucca Valley, CA
  14. 1.8 27km NE of Indio, CA
  15. 2.1 16km NE 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 4.2 on 2019-07-22 — it released about 370 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.