QuakeIndex

quarry blast · reviewed by a seismologist

M 2.0ml

5km NNW of Boron, CA

· -0.8 km deep · released about 36 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 102 kmLos Angeles County 108 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 2.0 (ml)
Depth
-0.8 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Kern County, 102 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2644 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

USGS catalogues this as quarry blast, not an earthquake.

How big was it?

This earthquake released about 36 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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 35.0413, -117.6747. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 102 km (63 mi) ESE of here earthquakes near Kern County
Los Angeles County, CA 108 km (67 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

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

  1. 1.7 25km N of California City, CA
  2. 2.1 20km W of Johannesburg, CA
  3. 1.7 25km NNE of California City, CA
  4. 1.8 23km NNE of California City, CA
  5. 2.1 23km W of Johannesburg, CA
  6. 1.7 24km W of Johannesburg, CA
  7. 1.5 24km W of Johannesburg, CA
  8. 2.4 21km SSW of Johannesburg, CA
  9. 1.9 25km W of Johannesburg, CA
  10. 1.7 25km NNE of California City, CA
  11. 1.6 25km N of California City, CA
  12. 1.7 18km W of Johannesburg, CA
  13. 2.9 24km W of Johannesburg, CA
  14. 1.8 26km N of California City, CA
  15. 1.8 25km NNE of California City, 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.