QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

27km N of Yucca Valley, CA

· 7.6 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Bernardino County 61 kmRiverside County 82 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
7.6 km below the surface
Felt
no reports yet
Nearest
San Bernardino County, 61 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2498 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 19 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 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 34.3570, -116.4632. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Bernardino County, CA 61 km (38 mi) SSW of here earthquakes near San Bernardino County
Riverside County, CA 82 km (51 mi) NNW of here earthquakes near Riverside County

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

Aftershocks so far

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

  1. 1.5 40km SW of Ludlow, CA
  2. 2.0 3km E of Yucca Valley, CA
  3. 2.4 9km SW of Morongo Valley, CA
  4. 2.4 26km NNW of Twentynine Palms, CA
  5. 1.5 6km NNW of Yucca Valley, CA
  6. 2.4 7km N of Big Bear City, CA
  7. 1.8 14km WSW of Ludlow, CA
  8. 1.7 40km SW of Ludlow, CA
  9. 1.8 6 km SE of Big Bear Lake, CA
  10. 1.5 5 km N of Yucca Valley, CA
  11. 2.5 4km N of Yucca Valley, CA
  12. 1.9 14km S of Big Bear City, CA
  13. 1.8 8km NNW of Big Bear City, CA
  14. 2.3 8km WNW of Garnet, CA
  15. 1.8 10km WSW of Morongo Valley, 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 8,500 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.