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M1.5 earthquake 39 km SSE of Valle Vista, California, United States

A magnitude 1.5 earthquake struck 39 km SSE of Valle Vista, California, United States at 06:07 local time (13:07 UTC) on 26 Oct 2026, at a depth of 3 km, according to USGS.

Data: USGS · updated 2026-10-26 13:43 UTC · reviewed

Magnitude
1.5micro
local magnitude (Richter) (ml)
Depth
2.8 km
Status
Reviewed
Origin time
2026-10-26 13:07:34 UTC
Local: 26 Oct 2026, 06:07:34 (America/Los Angeles)
Epicentre
33.454° N, 116.660° 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
Valle VistaCalifornia, United States · pop. 14,57839 kmINot felt
Rancho MirageCalifornia, United States · pop. 18,08339 kmINot felt
Palm DesertCalifornia, United States · pop. 51,86939 kmINot felt
La QuintaCalifornia, United States · pop. 40,47640 kmINot felt
Cathedral CityCalifornia, United States · pop. 53,82640 kmINot felt
Palm SpringsCalifornia, United States · pop. 47,37143 kmINot felt
RiversideCalifornia, United States · pop. 317,26188 kmINot felt
San DiegoCalifornia, United States · pop. 1,404,45294 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. Likely felt out to about 2 km.

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 Survey1.5 ml2.8 km33.45° N, 116.66° W–Reviewed

How big was it?

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

It released roughly the energy of 3 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 3 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.5 releases about 5.2× the energy of M1.0, and its waves are about 3× taller on a seismogram. Energy: 3 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

209 later earthquakes within 30 km; the largest was M2.6 6 days ago. 97 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.5

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
2.571.65
3.880.313
4.14-0.04
4.190.25
8.431.37
9.461.719
13.132.212
14.04-0.013
14.210.310
18.670.217
21.160.916
22.040.78
22.311.16
24.030.512
24.091.17
28.780.98
29.020.615
43.810.512
45.311.111
45.520.16
53.221.016
57.851.18
68.031.113
68.090.113
68.140.16
69.081.213
69.190.96
72.121.15
74.830.26
75.100.913
75.340.66
75.360.512
75.840.514
76.010.16
77.860.66
79.180.14
84.270.15
86.240.26
86.46-0.06
86.681.011
92.200.614
93.900.516
93.940.414
94.430.16
94.460.76
97.130.46
111.890.515
112.200.26
112.690.918
113.731.47
113.84-0.17
115.630.26
116.600.311
117.860.814
118.600.29
122.380.26
124.260.16
124.27-0.25
124.490.516
128.320.414
128.930.66
129.300.516
130.600.44
133.790.66
135.340.417
136.660.612
141.15-0.26
141.570.313
141.830.57
142.250.55
146.531.86
146.830.56
150.390.26
151.800.87
153.110.26
153.250.616
155.251.112
164.080.76
165.17-0.06
165.170.16
166.300.914
172.390.913
174.840.36
175.101.110
175.611.014
182.140.612
182.891.113
183.720.16
184.510.112
186.340.06
187.690.515
189.920.66
189.920.211
192.100.16
192.360.46
193.090.06
193.710.712
194.250.313
194.330.07
194.330.515
201.29-0.37
202.300.512
212.470.813
213.670.89
215.191.014
215.630.46
218.290.36
219.341.416
221.130.36
225.031.013
225.32-0.26
226.930.814
227.390.813
228.520.712
230.840.613
231.430.16
232.020.510
236.050.57
236.890.36
238.760.54
246.830.85
247.170.512
248.440.76
252.340.36
253.311.06
255.300.66
257.612.67
257.631.17
259.270.16
260.090.27
261.630.413
261.981.37
262.760.37
264.410.26
266.650.66
266.990.35
268.250.712
268.820.47
275.29-0.17
276.810.913
278.650.612
285.211.811
286.700.715
296.900.27
300.790.27
301.760.412
302.240.74
303.680.46
303.690.16
304.250.712
304.640.56
316.640.713
318.391.16
319.500.713
319.501.014
321.740.510
329.470.66
332.990.913
333.200.210
336.571.213
337.480.613
337.480.713
337.660.65
338.260.514
340.130.914
340.991.06
341.070.76
342.790.416
342.810.813
348.700.26
351.570.411
353.090.716
354.940.94
356.090.26
356.410.613
356.860.811
357.380.315
358.830.617
360.110.27
366.150.612
366.180.18
366.180.411
366.300.812
367.550.36
367.931.413
367.980.712
370.910.66
374.130.710
374.220.212
376.490.35
379.830.36
386.510.813
389.920.44
392.040.26
392.450.916
393.631.42
396.631.312
396.631.212
396.960.717
397.050.514
397.530.16
399.410.16
401.250.412
402.411.56
407.500.96
408.630.54
411.860.44
412.360.37
420.350.86
  1. 2.641 km ENE of Valley Center, California, United States11-06 06:44
  2. 2.222 km SSE of Valle Vista, California, United States10-27 02:15
  3. 1.825 km SSW of La Quinta, California, United States11-07 10:20
  4. 1.822 km SW of La Quinta, California, United States11-01 15:39
  5. 1.714 km SE of Valle Vista, California, United States10-26 22:35
  6. 1.629 km SE of Valle Vista, California, United States10-26 15:41
  7. 1.541 km ENE of Valley Center, California, United States11-12 07:32
  8. 1.417 km ESE of Valle Vista, California, United States11-04 16:28
  9. 1.422 km SSE of Valle Vista, California, United States11-10 21:03
  10. 1.439 km WSW of Oasis, California, United States11-11 22:45
  11. 1.429 km SE of Valle Vista, California, United States10-31 06:51
  12. 1.329 km SE of Valle Vista, California, United States10-26 21:33
  13. 1.322 km SSE of Valle Vista, California, United States11-12 01:45
  14. 1.341 km ENE of Valley Center, California, United States11-06 11:06
  15. 1.223 km SSE of Valle Vista, California, United States10-29 10:12
  16. 1.225 km SW of La Quinta, California, United States11-09 13:41
  17. 1.222 km SSE of Valle Vista, California, United States11-12 01:45
  18. 1.129 km SE of Valle Vista, California, United States10-27 11:26
  19. 1.130 km SSE of Valle Vista, California, United States11-02 20:13
  20. 1.127 km SSW of La Quinta, California, United States10-28 10:26
  21. 1.125 km SW of La Quinta, California, United States11-03 04:01
  22. 1.141 km SW of La Quinta, California, United States11-06 06:45
  23. 1.127 km WSW of Oasis, California, United States10-27 13:12
  24. 1.129 km SE of Valle Vista, California, United States10-29 13:14
  25. 1.123 km NNE of Ramona, California, United States10-28 22:58

Did you feel it?

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Reports on SeismoAtlas

No reports yet.

Event id ci41352807. First recorded here 26 Oct 2026, 13:44:58 UTC. Solutions: USGS · CI (usgs:ci41352807). Cite as: SeismoAtlas, “M1.5 earthquake 39 km SSE of Valle Vista, California, United States”, https://seismoatlas.com/earthquake/ci41352807-m1-5-earthquake-39-km-sse-of-valle-vista-california-united-states, data from USGS.

JSON: /api/v1/events/ci41352807. SeismoAtlas is not an official warning service.