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SeismoAtlas

M1.1 earthquake near San Jacinto, California, United States

A magnitude 1.1 earthquake struck near San Jacinto, California, United States at 02:23 local time (09:23 UTC) on 24 Oct 2026, at a depth of 6 km, according to USGS.

revised from M1.3

Data: USGS · updated 2026-10-25 18:00 UTC · reviewed

Magnitude
1.1micro
local magnitude (Richter) (ml)
revised from 1.3
Depth
6.3 km
Status
Reviewed
Origin time
2026-10-24 09:23:14 UTC
Local: 24 Oct 2026, 02:23:14 (America/Los Angeles)
Epicentre
33.774° N, 116.937° 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
San JacintoCalifornia, United States · pop. 46,9512 kmINot felt
East HemetCalifornia, United States · pop. 17,4184 kmINot felt
HemetCalifornia, United States · pop. 83,8614 kmINot felt
BeaumontCalifornia, United States · pop. 43,81118 kmINot felt
BanningCalifornia, United States · pop. 30,94518 kmINot felt
RiversideCalifornia, United States · pop. 317,26147 kmINot felt
IrvineCalifornia, United States · pop. 256,92783 kmINot felt
Santa AnaCalifornia, United States · pop. 310,22786 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 Survey1.1 mlwas 1.26.3 km33.77° N, 116.94° 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 747 g 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 6 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.1 releases about 1.6× the energy of M1.0, and its waves are about 1.3× taller on a seismogram. Energy: 747 g 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

109 later earthquakes within 30 km; the largest was M2.2 16 days ago. 38 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.1

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
1.591.04
3.770.414
3.780.514
3.880.815
3.950.713
10.470.514
10.961.013
23.060.76
29.060.36
30.940.515
40.271.012
40.760.718
41.020.46
41.061.217
43.060.417
43.131.24
43.351.13
49.64-0.16
49.740.512
52.300.68
53.541.214
61.201.719
64.872.212
65.78-0.013
70.400.217
75.760.512
80.760.615
95.550.512
98.190.514
103.680.512
104.470.69
104.751.010
104.961.016
119.771.113
119.820.113
120.821.213
126.830.913
127.100.512
129.010.818
137.220.516
138.421.011
139.551.114
143.940.614
145.640.516
145.680.414
163.630.515
164.430.918
166.870.613
171.651.08
176.01-0.25
176.230.516
181.040.516
183.321.117
187.080.417
193.310.313
204.990.616
209.420.89
215.820.76
216.311.211
216.660.69
218.040.914
219.441.713
228.431.113
236.250.112
237.162.014
238.080.06
250.361.514
254.040.512
261.060.413
261.070.916
261.480.616
264.210.813
267.400.817
271.081.416
278.670.814
288.470.714
292.660.99
306.930.514
319.990.712
328.550.913
330.390.612
338.430.715
341.051.113
353.500.412
355.420.46
355.430.16
361.890.520
374.110.917
384.730.913
384.940.210
394.530.416
397.411.417
398.521.55
404.830.716
404.830.61
408.051.18
408.860.99
409.120.315
410.560.617
417.890.612
418.040.812
419.671.413
419.720.712
444.190.916
448.371.312
448.371.212
448.700.717
451.280.917
452.980.414
  1. 2.222 km SSE of Valle Vista, California, United States10-27 02:15
  2. 2.07 km WSW of Calimesa, California, United States11-03 06:33
  3. 1.76 km ENE of San Jacinto, California, United States11-02 12:49
  4. 1.714 km SE of Valle Vista, California, United States10-26 22:35
  5. 1.56 km NNE of Cherry Valley, California, United States11-09 23:54
  6. 1.54 km ESE of Cherry Valley, California, United States11-03 19:44
  7. 1.417 km ESE of Valle Vista, California, United States11-04 16:28
  8. 1.4Near Beaumont, California, United States11-09 22:48
  9. 1.422 km SSE of Valle Vista, California, United States11-10 21:03
  10. 1.322 km SSE of Valle Vista, California, United States11-12 01:45
  11. 1.223 km SSE of Valle Vista, California, United States10-29 10:12
  12. 1.218 km ENE of Temecula, California, United States11-02 09:41
  13. 1.27 km SE of Valle Vista, California, United States10-26 02:26
  14. 1.214 km ENE of Temecula, California, United States10-26 04:31
  15. 1.28 km NE of Banning, California, United States10-26 14:55
  16. 1.222 km SSE of Valle Vista, California, United States11-12 01:45
  17. 1.113 km SSW of Hemet, California, United States11-07 14:26
  18. 1.113 km SSW of Hemet, California, United States10-30 04:55
  19. 1.1Near Cherry Valley, California, United States11-10 09:26
  20. 1.14 km NNE of Banning, California, United States11-01 00:42
  21. 1.114 km ENE of Temecula, California, United States10-26 04:44
  22. 1.123 km SE of Valle Vista, California, United States10-29 09:09
  23. 1.13 km NNW of Cherry Valley, California, United States11-02 21:48
  24. 1.06 km N of Banning, California, United States10-28 18:08
  25. 1.0Near Cherry Valley, California, United States10-31 13:02

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

Reports close 14 days after an earthquake.

Reports on SeismoAtlas

No reports yet.

Event id ci41351647. First recorded here 24 Oct 2026, 09:26:40 UTC. Solutions: USGS · CI (usgs:ci41351647). Cite as: SeismoAtlas, “M1.1 earthquake near San Jacinto, California, United States”, https://seismoatlas.com/earthquake/ci41351647-m1-1-earthquake-near-san-jacinto-california-united-states, data from USGS.

JSON: /api/v1/events/ci41351647. SeismoAtlas is not an official warning service.