QuakeIndex

Earthquake · automatic estimate, may change

M 1.5ml

Earthquake near Ridgecrest, CA

Yes: an earthquake was likely felt in Ridgecrest in the last 24 hours. M 1.5, 7 km (4 mi) E of Ridgecrest, at 3:54 am PST on 12 November 2026 (11:54 UTC); the estimated shaking in Ridgecrest was intensity II (weak). Every earthquake near Ridgecrest

This page: a magnitude 1.5 earthquake was recorded 26 km (16 mi) north of Ridgecrest, CA, at 7:42 pm PDT on 21 July 2019 (02:42 UTC), 4.1 km deep. The magnitude and location are an automatic first estimate and may change.

USGS: 23km ESE of Little Lake, CA

7:42 pm PDT, Jul 21, 2019 · · 4.1 km deep · released about 6.2 lb of TNT

Every earthquake near Ridgecrest Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Inyo County 82 kmTulare County 108 kmKern 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
7:42 pm PDT on 21 July 2019 ()
Where
26 km (16 mi) north of Ridgecrest, CA · earthquakes near Ridgecrest
Magnitude
M 1.5 (ml)
Depth
4.1 km below the surface
Felt
no reports yet
Nearest
Inyo County, 82 km NNE
Nearest mapped fault
Airport Lake fault, 3 km from its surface trace — near is not the same as on
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 2671 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 10 km (6 mi) from the epicentre. In Ridgecrest, 26 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: China Lake Acres, Inyokern, Searles Valley.

How big was it?

This earthquake released about 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 7.1 on 2019-07-06 — about 220,000,000 times the energy of this one.

Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.3 The 1946 Walker Pass, California Earthquake · 30 km SW of this epicentre
  2. 5.8 16km NNE of Ridgecrest, California · 11 km SSE of this epicentre
  3. 5.4 14km NW of Inyokern, CA · 28 km WSW of this epicentre
  4. 5.4 4km N of Inyokern, CA · 24 km SW of this epicentre
  5. 5.4 17km N of Ridgecrest, California · 9 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 35.8532, -117.6740. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 82 km (51 mi) NNE earthquakes near Inyo County
Tulare County, CA 108 km (67 mi) WNW earthquakes near Tulare County
Kern County, CA 111 km (69 mi) WSW earthquakes near Kern County

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

Aftershocks so far

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

  1. 1.7 24km N of Ridgecrest, CA
  2. 2.1 18km E of Little Lake, CA
  3. 1.6 19km E of Little Lake, CA
  4. 1.8 9km ENE of Coso Junction, CA
  5. 2.9 10km ENE of Coso Junction, CA
  6. 1.9 10km ENE of Coso Junction, CA
  7. 2.5 9km NE of Coso Junction, CA
  8. 1.7 15km SSW of Searles Valley, CA
  9. 2.0 10km NNE of Ridgecrest, CA
  10. 1.8 23km S of Trona, CA
  11. 2.4 20km W of Searles Valley, CA
  12. 1.5 16km SSW of Searles Valley, CA
  13. 1.8 17km W of Searles Valley, CA
  14. 1.6 16km SSW of Searles Valley, CA
  15. 2.8 21km N of Ridgecrest, 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.