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SeismoAtlas

M0.9 earthquake 6 km NNW of Jurupa Valley, California, United States

A magnitude 0.9 earthquake struck 6 km NNW of Jurupa Valley, California, United States at 00:13 local time (07:13 UTC) on 24 Sept 2026, at a depth of 7 km, according to USGS.

Data: USGS · updated 2026-09-24 16:19 UTC · reviewed

Magnitude
0.9micro
local magnitude (Richter) (ml)
Depth
7.1 km
Status
Reviewed
Origin time
2026-09-24 07:13:33 UTC
Local: 24 Sept 2026, 00:13:33 (America/Los Angeles)
Epicentre
34.036° N, 117.552° 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
Jurupa ValleyCalifornia, United States · pop. 21,9306 kmINot felt
Glen AvonCalifornia, United States · pop. 20,1997 kmINot felt
EastvaleCalifornia, United States · pop. 59,0398 kmINot felt
Rancho CucamongaCalifornia, United States · pop. 175,2369 kmINot felt
RiversideCalifornia, United States · pop. 317,26117 kmINot felt
AnaheimCalifornia, United States · pop. 350,74240 kmINot felt
Santa AnaCalifornia, United States · pop. 310,22743 kmINot felt
IrvineCalifornia, United States · pop. 256,92748 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 Survey0.9 ml7.1 km34.04° N, 117.55° W–Reviewed

How big was it?

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

It released roughly the energy of 338 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 7 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.0 releases about 1.4× the energy of M0.9, and its waves are about 1.3× taller on a seismogram. Energy: 477 g of TNT vs 338 g of TNT.

Each square is the energy of one M0.9. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

107 later earthquakes within 30 km; the largest was M2.7 35 days ago. 7 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M0.9

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
3.180.911
12.850.9-1
34.681.33
36.060.9-1
40.430.813
41.201.311
46.551.36
52.841.35
58.261.116
78.170.317
79.750.811
80.531.011
88.500.816
100.911.514
110.071.06
142.670.85
150.761.616
154.160.94
157.361.20
158.620.913
168.461.017
171.052.110
176.091.28
177.951.0-1
183.131.5-1
203.791.00
219.760.710
228.641.75
228.641.95
228.931.07
232.780.87
236.070.77
242.460.93
254.741.015
262.191.517
265.860.99
298.331.116
300.530.36
302.951.011
305.462.19
311.490.817
313.190.616
314.681.216
317.420.69
324.541.416
328.420.30
330.420.96
331.181.57
331.401.16
334.690.96
336.540.916
336.630.97
336.921.47
336.922.76
337.191.16
338.811.07
339.031.27
339.360.77
339.440.87
339.440.97
339.591.27
340.580.47
340.641.05
341.190.67
343.281.16
344.170.76
344.601.816
345.240.55
345.280.97
345.440.87
358.201.217
361.160.75
363.140.87
364.001.78
374.591.75
374.631.50
390.910.914
394.621.516
404.191.014
408.021.115
427.881.13
437.690.918
439.540.914
448.841.54
449.080.415
489.281.04
492.951.70
540.701.22
541.501.04
544.661.56
571.561.04
588.441.615
592.370.916
599.392.416
608.171.317
608.241.317
636.161.06
636.381.1-1
643.330.77
658.111.015
668.901.37
692.840.53
698.372.07
698.401.67
698.411.37
699.380.87
707.361.3-1
  1. 2.74 km WNW of Fontana, California, United States10-08 08:09
  2. 2.4Near Loma Linda, California, United States10-19 06:36
  3. 2.15 km NNW of Fontana, California, United States10-07 00:41
  4. 2.112 km NW of Muscoy, California, United States10-01 10:16
  5. 2.04 km WNW of Fontana, California, United States10-23 09:35
  6. 1.97 km NNW of Eastvale, California, United States10-03 19:52
  7. 1.8Near Colton, California, United States10-08 15:49
  8. 1.76 km WNW of Jurupa Valley, California, United States10-03 19:52
  9. 1.77 km WNW of Jurupa Valley, California, United States10-09 21:48
  10. 1.7Near El Cerrito Corona, California, United States10-14 20:10
  11. 1.714 km NNE of Rancho Cucamonga, California, United States10-09 11:13
  12. 1.63 km SE of Loma Linda, California, United States09-30 13:59
  13. 1.64 km WNW of Fontana, California, United States10-23 09:37
  14. 1.6Near Loma Linda, California, United States10-18 19:39
  15. 1.5Near Colton, California, United States10-10 17:50
  16. 1.514 km WNW of Muscoy, California, United States10-16 23:53
  17. 1.5Near Fontana, California, United States10-13 00:04
  18. 1.5Near Loma Linda, California, United States10-05 05:24
  19. 1.54 km WNW of Fontana, California, United States10-08 02:24
  20. 1.5Near Loma Linda, California, United States09-28 12:07
  21. 1.5Near El Cerrito Corona, California, United States10-01 22:21
  22. 1.54 km ESE of El Cerrito Corona, California, United States10-09 21:51
  23. 1.4Near Loma Linda, California, United States10-07 19:45
  24. 1.45 km W of Fontana, California, United States10-08 08:08
  25. 1.36 km SSW of Los Serranos, California, United States09-26 12:03

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 ci41338295. First recorded here 28 Sept 2026, 17:32:10 UTC. Solutions: USGS · CI (usgs:ci41338295). Cite as: SeismoAtlas, “M0.9 earthquake 6 km NNW of Jurupa Valley, California, United States”, https://seismoatlas.com/earthquake/ci41338295-m0-9-earthquake-6-km-nnw-of-jurupa-valley-california-united-states, data from USGS.

JSON: /api/v1/events/ci41338295. SeismoAtlas is not an official warning service.