QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Adelanto, CA

No earthquake was likely felt in Adelanto in the 24 hours to 6:00 am PST (14:00 UTC). The last one was M 4.3, 89 km (55 mi) NNW, at 9:40 am PDT on 13 July 2026, estimated intensity II (weak) in town; 1,090 felt reports to USGS. Every earthquake near Adelanto

This page: a magnitude 2.1 earthquake was recorded 9 km (5 mi) northwest of Adelanto, CA, at 10:29 pm PDT on 22 October 2022 (05:29 UTC), 5.9 km deep.

USGS: 9km NW of Adelanto, CA

17 km (10 mi) NW of Victorville, CA · 111 km (69 mi) NE of Los Angeles, CA

10:29 pm PDT, Oct 22, 2022 · · 5.9 km deep · released about 41 lb of TNT

10 km30 km60 km120 km N Los Angeles County 88 kmOrange County 111 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
10:29 pm PDT on 22 October 2022 ()
Where
9 km (5 mi) northwest of Adelanto, CA · earthquakes near Adelanto
Magnitude
M 2.1 (ml)
Depth
5.9 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 88 km SW
Nearest mapped fault
Helendale-South Lockhart fault, 20 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1480 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 16 km (10 mi) from the epicentre. In Adelanto, 9 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Silver Lakes, Victorville, Spring Valley Lake, Phelan, Piñon Hills, Hesperia.

How big was it?

This earthquake released about 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 260,000× the energy of this one
  3. Around the size people start to feel M 3.0 23× the energy of this one
  4. This earthquake M 2.1 about 41 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.2 3km W of Lytle Creek, CA · 43 km S of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 34.6423, -117.4712. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Los Angeles County, CA 88 km (55 mi) SW earthquakes near Los Angeles County
Orange County, CA 111 km (69 mi) SSW earthquakes near Orange County
San Bernardino County, CA 120 km (75 mi) ENE earthquakes near San Bernardino County
Kern County, CA 139 km (86 mi) NW earthquakes near Kern 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. 1.7 4km NNW of Boron, CA
  2. 1.6 4km NW of Boron, CA
  3. 1.5 11km S of Wrightwood, CA
  4. 1.5 2km WSW of Devore, CA
  5. 1.6 4km NNW of Boron, CA
  6. 1.5 7km SW of Pearblossom, CA
  7. 1.6 4km NW of Boron, CA
  8. 1.8 5km NNW of Boron, CA
  9. 1.7 5km NNW of Boron, CA
  10. 1.8 6km SSE of Barstow, CA
  11. 2.1 7km SW of Pearblossom, CA
  12. 1.6 7km S of Pearblossom, CA
  13. 1.8 5km NNW of Boron, CA
  14. 1.9 5km NW of Boron, CA
  15. 1.9 7km SW of Pearblossom, 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.