QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

23km SSW of La Quinta, CA

· 10 km deep · released about 570 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 48 kmSan Diego County 60 kmImperial County 111 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 2.9 (ml)
Depth
10 km below the surface
Felt
91 reports · strongest reported intensity IV
Nearest
Riverside County, 48 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3761 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 91 people have reported feeling it to USGS.

How big was it?

This earthquake released about 570 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 27,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.9 about 570 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 33.4795, -116.4218. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 48 km (30 mi) SW of here earthquakes near Riverside County
San Diego County, CA 60 km (38 mi) NNE of here earthquakes near San Diego County
Imperial County, CA 111 km (69 mi) WNW of here earthquakes near Imperial County

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

Aftershocks so far

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

  1. 1.9 23km SSW of La Quinta, CA
  2. 1.6 20km ESE of Anza, CA
  3. 1.9 24km NNW of Borrego Springs, CA
  4. 1.6 16km NNE of Borrego Springs, CA
  5. 2.0 23km NNW of Borrego Springs, CA
  6. 1.6 6km ENE of Valle Vista, CA
  7. 1.8 21km ESE of Anza, CA
  8. 1.6 23km ESE of Anza, CA
  9. 1.6 18km ESE of Anza, CA
  10. 1.6 23km ESE of Anza, CA
  11. 1.7 22km ESE of Anza, CA
  12. 1.5 22km ESE of Anza, CA
  13. 1.7 23km ESE of Anza, CA
  14. 1.9 23km ESE of Anza, CA
  15. 2.2 23km SSW of La Quinta, 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 3,200 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.