QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near California City, CA

No earthquake was likely felt in California City in the 24 hours to 10:30 pm PST (06:30 UTC). The last one was M 3.0, 26 km (16 mi) NE, at 1:44 pm PDT on 23 September 2026, estimated intensity II (weak) in town. Every earthquake near California City

This page: a magnitude 2.4 earthquake was recorded 27 km (17 mi) east-northeast of California City, CA, at 7:48 am PDT on 11 July 2019 (14:48 UTC), 6.0 km deep. 2 people have reported feeling it to USGS.

USGS: 21km SSW of Johannesburg, CA

7:48 am PDT, Jul 11, 2019 · · 6.0 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N Kern County 95 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
7:48 am PDT on 11 July 2019 ()
Where
27 km (17 mi) east-northeast of California City, CA · earthquakes near California City
Magnitude
M 2.4 (ml)
Depth
6.0 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Kern County, 95 km W
Nearest mapped fault
Lenwood-Lockhart fault, 1 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 2681 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 20 km (12 mi) from the epicentre. In California City, 27 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: Boron, North Edwards.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× the energy of this one
  4. This earthquake M 2.4 about 120 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

The largest earthquake within 50 km since 2016 was M 4.8 on 2019-07-06 — about 4,100 times the energy of this one.

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

  1. 5.7 12km NW of California City, California · 33 km W 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 35.1942, -117.6992. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kern County, CA 95 km (59 mi) W earthquakes near Kern County
Los Angeles County, CA 122 km (76 mi) SSW earthquakes near Los Angeles County
Tulare County, CA 151 km (94 mi) NW earthquakes near Tulare County

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

Aftershocks so far

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

  1. 1.7 26km S of Trona, CA
  2. 1.7 26km NE of Johannesburg, CA
  3. 1.9 25km S of Trona, CA
  4. 2.2 24 km S of Trona, CA
  5. 1.7 24km S of Trona, CA
  6. 3.5 25km S of Trona, CA
  7. 1.7 26km S of Trona, CA
  8. 1.6 8km E of Ridgecrest, CA
  9. 1.5 24km W of Johannesburg, CA
  10. 2.0 18km E of Ridgecrest, CA
  11. 2.0 8km ESE of Ridgecrest, CA
  12. 1.7 25km S of Trona, CA
  13. 1.9 26km NE of Johannesburg, CA
  14. 1.8 24km S of Trona, 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.