QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

12km NNE of Thousand Palms, CA

· 5.5 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 37 kmSan Bernardino County 106 kmSan Diego County 107 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 1.6 (ml)
Depth
5.5 km below the surface
Felt
no reports yet
Nearest
Riverside County, 37 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2610 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 7.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 33.9113, -116.3322. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 37 km (23 mi) WNW 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 107 km (66 mi) NNE of here earthquakes near San Diego County
Imperial County, CA 133 km (82 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

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

  1. 1.5 12km NNE of Cabazon, CA
  2. 1.5 9km SSW of Idyllwild, CA
  3. 2.0 16km NW of Morongo Valley, CA
  4. 1.8 16km NW of Morongo Valley, CA
  5. 2.0 16km NW of Morongo Valley, CA
  6. 1.6 16km NW of Morongo Valley, CA
  7. 1.5 4km SSW of Idyllwild, CA
  8. 1.8 2km WNW of Cabazon, CA
  9. 1.8 4km S of Morongo Valley, CA
  10. 1.6 8km NNE of Banning, CA
  11. 2.4 5km NE of Cabazon, CA
  12. 1.6 12km NE of Indio, CA
  13. 1.8 22km NW of Yucca Valley, CA
  14. 1.5 12km ENE of Indio, CA
  15. 2.4 12km 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 4.5 on 2018-05-08 — it released about 21,000 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.