QuakeIndex

Earthquake · reviewed by a seismologist

M 3.5ml

5 km NNW of Boron, CA

· 0.8 km deep · released about 2.9 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 103 kmLos Angeles County 109 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 3.5 (ml)
Depth
0.8 km below the surface
Felt
12 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
Nearest
Kern County, 103 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1018 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 12 people have reported feeling it to USGS.

How big was it?

This earthquake released about 2.9 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 59,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 2,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,900× the energy of this one
  4. This earthquake M 3.5 about 2.9 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 6× 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 35.0410, -117.6610. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 103 km (64 mi) ESE of here earthquakes near Kern County
Los Angeles County, CA 109 km (68 mi) NNE 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

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

  1. 1.6 5 km NW of Boron, CA
  2. 1.6 6 km WNW of Boron, CA
  3. 1.7 4 km NW of Boron, CA
  4. 1.5 5 km NNW of Boron, CA
  5. 1.6 4 km NNW of Boron, CA
  6. 1.8 4 km NNW of Boron, CA
  7. 1.7 5 km NW of Boron, CA
  8. 1.6 7 km SSW of Mojave, CA
  9. 1.5 4 km NNW of Boron, CA
  10. 1.8 5 km NW of Boron, CA
  11. 1.8 4 km NW of Boron, CA
  12. 1.6 4 km NNW of Boron, CA
  13. 1.7 4 km NW of Boron, CA
  14. 1.7 7 km S of Mojave, CA
  15. 1.7 4 km NW of Boron, 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.