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M0.9 earthquake near Alhambra, California, United States

A magnitude 0.9 earthquake struck near Alhambra, California, United States at 15:01 local time (22:01 UTC) on 19 Oct 2026, at a depth of 7 km, according to USGS.

revised from M1.1

Data: USGS · updated 2026-10-19 22:25 UTC · reviewed

Magnitude
0.9micro
local magnitude (Richter) (ml)
revised from 1.1
Depth
6.7 km
Status
Reviewed
Origin time
2026-10-19 22:01:42 UTC
Local: 19 Oct 2026, 15:01:42 (America/Los Angeles)
Epicentre
34.080° N, 118.132° 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
AlhambraCalifornia, United States · pop. 85,5512 kmINot felt
Monterey ParkCalifornia, United States · pop. 61,4683 kmINot felt
San GabrielCalifornia, United States · pop. 40,4243 kmINot felt
South PasadenaCalifornia, United States · pop. 26,1515 kmINot felt
Los AngelesCalifornia, United States · pop. 3,820,91410 kmINot felt
AnaheimCalifornia, United States · pop. 350,74234 kmINot felt
Long BeachCalifornia, United States · pop. 474,14035 kmINot felt
Santa AnaCalifornia, United States · pop. 310,22744 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 mlwas 1.26.7 km34.08° N, 118.13° 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 388 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 1.2× the energy of M0.9, and its waves are about 1.1× taller on a seismogram. Energy: 477 g of TNT vs 388 g of TNT.

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

Aftershocks and nearby activity

27 later earthquakes within 30 km; the largest was M1.8 12 days ago. 3 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M0.9

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
36.341.27
74.450.811
167.251.0-1
197.541.111
198.331.711
201.050.911
204.720.79
205.280.811
207.650.710
208.330.711
208.440.810
209.461.311
238.060.89
252.331.111
277.900.57
287.501.812
313.071.212
382.421.1-1
412.991.314
419.450.512
443.711.116
464.540.811
495.661.510
499.410.612
531.861.66
570.531.013
575.361.44
  1. 1.8Near West Rancho Dominguez, California, United States10-31 21:31
  2. 1.73 km S of Glendale, California, United States10-28 04:21
  3. 1.64 km NNW of Inglewood, California, United States11-11 01:53
  4. 1.54 km NW of Signal Hill, California, United States11-09 13:41
  5. 1.4Near Azusa, California, United States11-12 21:23
  6. 1.36 km NE of Los Angeles, California, United States10-28 15:29
  7. 1.3Near La Mirada, California, United States11-06 03:01
  8. 1.212 km ENE of Santa Monica, California, United States10-21 10:21
  9. 1.26 km NNW of Glendora, California, United States11-01 23:06
  10. 1.14 km S of Glendale, California, United States10-28 03:34
  11. 1.16 km WSW of Burbank, California, United States11-07 09:44
  12. 1.1Near South El Monte, California, United States10-30 10:21
  13. 1.16 km NNW of Azusa, California, United States11-04 20:26
  14. 1.05 km NNW of Azusa, California, United States10-26 21:16
  15. 1.0Near Charter Oak, California, United States11-12 16:33
  16. 0.94 km S of Glendale, California, United States10-28 07:04
  17. 0.83 km NNW of Sierra Madre, California, United States10-23 00:28
  18. 0.85 km N of Inglewood, California, United States10-29 20:05
  19. 0.89 km NNW of Glendora, California, United States11-08 06:33
  20. 0.83 km SSW of Glendale, California, United States10-28 11:18
  21. 0.83 km SSW of Glendale, California, United States10-28 14:28
  22. 0.73 km SSW of Glendale, California, United States10-28 13:40
  23. 0.74 km SSW of Glendale, California, United States10-28 14:21
  24. 0.77 km NE of La Crescenta-Montrose, California, United States10-28 10:44
  25. 0.6Near Charter Oak, California, United States11-09 17:26

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 ci41349495. First recorded here 19 Oct 2026, 22:04:08 UTC. Solutions: USGS · CI (usgs:ci41349495). Cite as: SeismoAtlas, “M0.9 earthquake near Alhambra, California, United States”, https://seismoatlas.com/earthquake/ci41349495-m0-9-earthquake-near-alhambra-california-united-states, data from USGS.

JSON: /api/v1/events/ci41349495. SeismoAtlas is not an official warning service.