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M2.4 earthquake 27 km E of Hōlualoa, Hawaii, United States

A magnitude 2.4 earthquake struck 27 km E of Hōlualoa, Hawaii, United States at 20:27 local time (06:27 UTC) on 8 Oct 2026, at a depth of 10 km, according to USGS.

Data: USGS · updated 2026-10-09 18:35 UTC · reviewed

Magnitude
2.4micro
local magnitude (Richter) (ml)
Depth
9.7 km
Status
Reviewed
Origin time
2026-10-09 06:27:26 UTC
Local: 8 Oct 2026, 20:27:26 (Pacific/Honolulu)
Epicentre
19.584° N, 155.691° 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
HōlualoaHawaii, United States · pop. 8,53827 kmINot felt
Kailua-KonaHawaii, United States · pop. 11,97533 kmINot felt
HiloHawaii, United States · pop. 43,26365 kmINot felt
HonoluluHawaii, United States · pop. 350,964297 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 · HV, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · HVheadlineHawaiian Volcano Observatory via U.S. Geological Survey2.4 ml9.7 km19.58° N, 155.69° 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 52 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 10 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M2.4 releases about 28× the energy of M1.4, and its waves are about 9.1× taller on a seismogram. Energy: 52 kg of TNT vs 2 kg of TNT.

Each square is the energy of one M1.4. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

50 later earthquakes within 30 km; the largest was M3.1 8 days ago. 12 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.4

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
11.711.88
12.372.644
26.502.241
30.521.8-3
36.581.942
52.321.741
54.812.132
88.342.137
102.362.049
116.921.50
137.622.139
168.412.139
184.321.10
208.182.322
217.361.71
227.020.90
233.732.212
234.332.339
261.812.1-1
282.312.345
286.921.713
307.332.235
318.111.710
325.081.50
325.082.7-1
341.861.83
359.432.3-1
388.132.339
437.532.49
448.842.60
455.801.938
462.941.924
470.611.78
535.871.62
535.911.92
536.161.72
566.080.83
575.281.935
588.282.122
614.381.97
620.251.112
623.652.440
639.543.1-2
639.961.8-2
676.362.473
679.042.441
679.041.923
686.881.60
691.882.117
704.261.950
  1. 3.143 km SE of Hōlualoa, Hawaii, United States11-04 21:59
  2. 2.742 km ESE of Hōlualoa, Hawaii, United States10-22 19:32
  3. 2.646 km WSW of Hilo, Hawaii, United States10-27 23:17
  4. 2.643 km ESE of Hōlualoa, Hawaii, United States10-09 18:49
  5. 2.442 km ESE of Hōlualoa, Hawaii, United States11-04 06:06
  6. 2.429 km SSE of Hōlualoa, Hawaii, United States11-06 10:48
  7. 2.439 km ESE of Hōlualoa, Hawaii, United States10-27 11:58
  8. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  9. 2.343 km ESE of Hōlualoa, Hawaii, United States10-19 00:47
  10. 2.342 km ESE of Hōlualoa, Hawaii, United States10-25 10:34
  11. 2.339 km ESE of Hōlualoa, Hawaii, United States10-21 00:46
  12. 2.314 km SE of Hōlualoa, Hawaii, United States10-17 22:38
  13. 2.348 km WSW of Hilo, Hawaii, United States10-24 05:53
  14. 2.238 km ESE of Hōlualoa, Hawaii, United States10-22 01:47
  15. 2.220 km ENE of Kalaoa, Hawaii, United States10-19 00:11
  16. 2.242 km ESE of Hōlualoa, Hawaii, United States10-10 08:57
  17. 2.142 km ESE of Hōlualoa, Hawaii, United States10-11 13:15
  18. 2.138 km SE of Hōlualoa, Hawaii, United States10-16 06:51
  19. 2.117 km SE of Hōlualoa, Hawaii, United States11-02 18:44
  20. 2.128 km SSE of Hōlualoa, Hawaii, United States11-07 02:20
  21. 2.138 km ESE of Hōlualoa, Hawaii, United States10-12 22:47
  22. 2.137 km ESE of Hōlualoa, Hawaii, United States10-15 00:04
  23. 2.142 km ESE of Hōlualoa, Hawaii, United States10-20 04:16
  24. 2.044 km SE of Hōlualoa, Hawaii, United States10-13 12:49
  25. 1.951 km ESE of Hōlualoa, Hawaii, United States11-03 20:50

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 hv75052572. First recorded here 9 Oct 2026, 06:32:36 UTC. Solutions: USGS · HV (usgs:hv75052572). Cite as: SeismoAtlas, “M2.4 earthquake 27 km E of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75052572-m2-4-earthquake-27-km-e-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75052572. SeismoAtlas is not an official warning service.