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M1.5 earthquake near Mayflower Village, California, United States

A magnitude 1.5 earthquake struck near Mayflower Village, California, United States at 04:47 local time (11:47 UTC) on 8 Oct 2026, at a depth of 11 km, according to USGS.

Data: USGS · updated 2026-10-08 13:58 UTC · reviewed

Magnitude
1.5micro
local magnitude (Richter) (ml)
Depth
11 km
Status
Reviewed
Origin time
2026-10-08 11:47:53 UTC
Local: 8 Oct 2026, 04:47:53 (America/Los Angeles)
Epicentre
34.105° N, 117.991° 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
Mayflower VillageCalifornia, United States · pop. 5,5152 kmINot felt
Baldwin ParkCalifornia, United States · pop. 77,0713 kmINot felt
DuarteCalifornia, United States · pop. 21,9904 kmINot felt
MonroviaCalifornia, United States · pop. 37,4635 kmINot felt
El MonteCalifornia, United States · pop. 116,7325 kmINot felt
Los AngelesCalifornia, United States · pop. 3,820,91424 kmINot felt
AnaheimCalifornia, United States · pop. 350,74230 kmINot felt
Santa AnaCalifornia, United States · pop. 310,22741 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 Survey1.5 ml11 km34.10° N, 117.99° W–Reviewed · 1 revision

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 11 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 6.5× the energy of M1.0, and its waves are about 3.5× 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

23 later earthquakes within 30 km; the largest was M1.7 15 days ago. 7 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.5

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
132.820.511
256.340.613
272.061.2-1
274.230.97
348.680.811
441.481.0-1
471.771.111
472.561.711
475.280.911
478.950.79
479.510.811
481.880.710
482.560.711
482.670.810
483.691.311
526.561.111
546.940.913
552.130.57
587.301.212
637.761.511
656.651.1-1
687.221.314
693.680.512
  1. 1.73 km S of Glendale, California, United States10-28 04:21
  2. 1.5Near Placentia, California, United States11-04 01:33
  3. 1.36 km NE of Los Angeles, California, United States10-28 15:29
  4. 1.3Near La Mirada, California, United States11-06 03:01
  5. 1.26 km NNW of Glendora, California, United States11-01 23:06
  6. 1.26 km NNW of Azusa, California, United States10-19 19:51
  7. 1.14 km S of Glendale, California, United States10-28 03:34
  8. 1.1Near South El Monte, California, United States10-30 10:21
  9. 1.16 km NNW of Azusa, California, United States11-04 20:26
  10. 1.05 km NNW of Azusa, California, United States10-26 21:16
  11. 0.9Near Alhambra, California, United States10-19 22:01
  12. 0.94 km S of San Dimas, California, United States10-31 06:44
  13. 0.94 km S of Glendale, California, United States10-28 07:04
  14. 0.83 km NNW of Sierra Madre, California, United States10-23 00:28
  15. 0.83 km SSW of Glendale, California, United States10-28 11:18
  16. 0.83 km SSW of Glendale, California, United States10-28 14:28
  17. 0.73 km SSW of Glendale, California, United States10-28 13:40
  18. 0.74 km SSW of Glendale, California, United States10-28 14:21
  19. 0.77 km NE of La Crescenta-Montrose, California, United States10-28 10:44
  20. 0.6Near Covina, California, United States10-19 04:08
  21. 0.5Near El Monte, California, United States11-06 09:28
  22. 0.56 km N of Altadena, California, United States10-31 11:55
  23. 0.55 km ENE of Los Angeles, California, United States10-14 00:37

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 ci41344959. First recorded here 8 Oct 2026, 11:52:57 UTC. Solutions: USGS · CI (usgs:ci41344959). Cite as: SeismoAtlas, “M1.5 earthquake near Mayflower Village, California, United States”, https://seismoatlas.com/earthquake/ci41344959-m1-5-earthquake-near-mayflower-village-california-united-states, data from USGS.

JSON: /api/v1/events/ci41344959. SeismoAtlas is not an official warning service.