QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

12km NNE of Barstow, CA

· 3.9 km deep · released about 54 lb of TNT

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10 km30 km60 km120 km N San Bernardino County 72 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 2.2 (ml)
Depth
3.9 km below the surface
Felt
no reports yet
Nearest
San Bernardino County, 72 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1830 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 54 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 280,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 54 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 34.9877, -116.9563. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Bernardino County, CA 72 km (45 mi) WNW of here earthquakes near San Bernardino County
Los Angeles County, CA 148 km (92 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. 2.0 23km WSW of Fort Irwin, CA
  2. 1.7 12km ENE of Barstow, CA
  3. 1.8 28km E of Barstow, CA
  4. 1.9 28km ENE of Barstow, CA
  5. 1.9 28km ENE of Barstow, CA
  6. 2.5 28km ENE of Barstow, CA
  7. 3.6 28km ENE of Barstow, CA
  8. 1.6 26km SE of Boron, CA
  9. 2.5 34km NE of Lucerne Valley, CA
  10. 2.1 29km ESE of Johannesburg, CA
  11. 1.9 23km NNW of Barstow, CA
  12. 1.8 6km SSE of Barstow, CA
  13. 1.5 12km NE of Adelanto, CA
  14. 1.9 22km SSE of Fort Irwin, CA
  15. 2.3 13km NNE of Barstow, 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 4.6 on 2020-01-25 — it released about 4,700 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.