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M1.8 earthquake 24 km N of Ridgecrest, California, United States

A magnitude 1.8 earthquake struck 24 km N of Ridgecrest, California, United States at 20:44 local time (04:44 UTC) on 4 Nov 2026, at a depth of 10 km, according to USGS.

revised from M2.0

Data: USGS · updated 2026-11-05 14:55 UTC · reviewed

Magnitude
1.8micro
local magnitude (Richter) (ml)
revised from 2.0
Depth
10.1 km
Status
Reviewed
Origin time
2026-11-05 04:44:23 UTC
Local: 4 Nov 2026, 20:44:23 (America/Los Angeles)
Epicentre
35.832° N, 117.636° W

Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
RidgecrestCalifornia, United States · pop. 28,78024 kmINot felt
Alta SierraCalifornia, United States · pop. 7,04783 kmINot felt
BarstowCalifornia, United States · pop. 23,692118 kmINot felt
Barstow HeightsCalifornia, United States · pop. 24,202119 kmINot felt
PortervilleCalifornia, United States · pop. 56,058127 kmINot felt
BakersfieldCalifornia, United States · pop. 373,640135 kmINot felt
Los AngelesCalifornia, United States · pop. 3,820,914206 kmINot felt
RiversideCalifornia, United States · pop. 317,261210 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS · CI, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · CIheadlineSouthern California Seismic Network via U.S. Geological Survey1.8 mlwas 2.010.1 km35.83° N, 117.64° W–Reviewed · 2 revisions

How big was it?

Usually not felt. Recorded by nearby seismometers; thousands occur worldwide every day.

It released roughly the energy of 8 kg of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 10 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.8 releases about 16× the energy of M1.0, and its waves are about 6.3× taller on a seismogram. Energy: 8 kg of TNT vs 477 g of TNT.

Each square is the energy of one M1.0. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

25 later earthquakes within 30 km; the largest was M1.7 2 days ago. 27 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.8

25 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
5.450.88
11.781.63
32.281.18
49.411.24
49.691.02
62.660.710
84.041.23
88.090.95
91.771.19
116.440.96
120.211.71
128.030.95
133.721.710
133.770.99
134.730.95
149.691.66
150.880.68
152.281.07
157.731.15
161.461.01
161.870.72
164.430.74
167.011.35
168.850.82
175.181.58
  1. 1.752 km N of Ridgecrest, California, United States11-10 04:56
  2. 1.714 km ENE of Ridgecrest, California, United States11-10 18:27
  3. 1.615 km ENE of Ridgecrest, California, United States11-11 10:25
  4. 1.645 km NNE of Ridgecrest, California, United States11-05 16:31
  5. 1.57 km E of Ridgecrest, California, United States11-12 11:54
  6. 1.38 km E of Ridgecrest, California, United States11-12 03:45
  7. 1.245 km NE of Ridgecrest, California, United States11-08 16:46
  8. 1.230 km N of Ridgecrest, California, United States11-07 06:08
  9. 1.128 km N of Ridgecrest, California, United States11-06 13:01
  10. 1.118 km E of Ridgecrest, California, United States11-09 00:30
  11. 1.114 km NE of Ridgecrest, California, United States11-11 18:28
  12. 1.032 km N of Ridgecrest, California, United States11-07 06:25
  13. 1.016 km NE of Ridgecrest, California, United States11-11 22:12
  14. 1.014 km ENE of Ridgecrest, California, United States11-11 13:00
  15. 0.930 km N of Ridgecrest, California, United States11-08 20:49
  16. 0.917 km ENE of Ridgecrest, California, United States11-10 12:46
  17. 0.916 km NE of Ridgecrest, California, United States11-10 19:28
  18. 0.919 km NNE of Ridgecrest, California, United States11-10 01:11
  19. 0.932 km NNW of Ridgecrest, California, United States11-10 18:30
  20. 0.832 km NNW of Ridgecrest, California, United States11-05 10:11
  21. 0.816 km NE of Ridgecrest, California, United States11-12 05:35
  22. 0.78 km E of Ridgecrest, California, United States11-12 01:09
  23. 0.719 km N of Ridgecrest, California, United States11-07 19:23
  24. 0.747 km N of Ridgecrest, California, United States11-11 22:36
  25. 0.614 km ENE of Ridgecrest, California, United States11-11 11:37

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Reports on SeismoAtlas

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Event id ci41358583. First recorded here 5 Nov 2026, 04:48:00 UTC. Solutions: USGS · CI (usgs:ci41358583). Cite as: SeismoAtlas, “M1.8 earthquake 24 km N of Ridgecrest, California, United States”, https://seismoatlas.com/earthquake/ci41358583-m1-8-earthquake-24-km-n-of-ridgecrest-california-united-states, data from USGS.

JSON: /api/v1/events/ci41358583. SeismoAtlas is not an official warning service.