QuakeIndex

Earthquake · reviewed by a seismologist

M 4.6mw

23km NNE of Barstow, CA

· 3.1 km deep · released about 130 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Bernardino County 77 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 4.6 (mw)
Depth
3.1 km below the surface
Felt
2446 reports · strongest reported intensity IV
Measured shaking
intensity VII (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
San Bernardino County, 77 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 713 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 2446 people have reported feeling it to USGS.

How big was it?

This earthquake released about 130 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.6 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 1,300× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 59× the energy of this one
  3. Magna, Utah 2020 M 5.7 42× the energy of this one
  4. This earthquake M 4.6 about 130 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 270× more

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 35.0975, -116.9697. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Bernardino County, CA 77 km (48 mi) WNW of here earthquakes near San Bernardino County
Los Angeles County, CA 155 km (96 mi) NE of here earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 1.6 32km E of Barstow, CA
  2. 2.0 17km S of Fort Irwin, CA
  3. 1.7 30 km NW of Lenwood, California
  4. 2.4 31km ENE of Johannesburg, CA
  5. 1.8 39km NNW of Barstow, CA
  6. 1.8 22km NNE of Barstow, CA
  7. 1.5 40km NNW of Barstow, CA
  8. 3.9 40km NNW of Barstow, CA
  9. 1.5 14km S of Fort Irwin, CA
  10. 1.6 14km S of Fort Irwin, CA
  11. 2.3 26km ESE of Boron, CA
  12. 2.4 27km ESE of Boron, CA
  13. 2.8 12km NE of Barstow, CA
  14. 2.1 40km WNW of Ludlow, CA
  15. 2.0 40km WNW of Ludlow, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.