QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

15km N of Yucca Valley, CA

· 2.9 km deep · released about 18 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Riverside County 70 kmSan Bernardino County 71 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 1.9 (ml)
Depth
2.9 km below the surface
Felt
no reports yet
Nearest
Riverside County, 70 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1983 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 18 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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 34.2522, -116.4308. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Riverside County, CA 70 km (44 mi) NW of here earthquakes near Riverside County
San Bernardino County, CA 71 km (44 mi) SSW of here earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 1.8 13km S of Twentynine Palms, CA
  2. 1.7 37km ENE of Lucerne Valley, CA
  3. 1.8 24km SSW of Ludlow, CA
  4. 2.0 7km N of Yucca Valley, CA
  5. 1.6 40km NE of Big Bear City, CA
  6. 1.9 36km ENE of Lucerne Valley, CA
  7. 1.6 7km SW of Morongo Valley, CA
  8. 1.6 21km SSW of Ludlow, CA
  9. 1.6 4km NNW of Yucca Valley, CA
  10. 3.6 4km NNW of Yucca Valley, CA
  11. 1.6 4km ENE of Big Bear City, CA
  12. 1.5 12km N of Big Bear City, CA
  13. 2.6 12km N of Big Bear City, CA
  14. 1.7 6km NNE of Big Bear City, CA
  15. 1.6 10km N of Big Bear Lake, 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 9,100 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.