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SeismoAtlas

M2.1 earthquake 37 km ESE of Hōlualoa, Hawaii, United States

A magnitude 2.1 earthquake struck 37 km ESE of Hōlualoa, Hawaii, United States at 14:04 local time (00:04 UTC) on 14 Oct 2026, at a depth of 39 km, according to USGS.

Data: USGS · updated 2026-10-15 21:43 UTC · reviewed

Magnitude
2.1micro
local magnitude (Richter) (ml)
Depth
39 km
Status
Reviewed
Origin time
2026-10-15 00:04:25 UTC
Local: 14 Oct 2026, 14:04:25 (Pacific/Honolulu)
Epicentre
19.459° N, 155.639° 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. 8,53837 kmINot felt
Kailua-KonaHawaii, United States · pop. 11,97543 kmINot felt
HiloHawaii, United States · pop. 43,26365 kmINot felt
HonoluluHawaii, United States · pop. 350,964310 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 Survey2.1 ml39 km19.46° N, 155.64° W–Reviewed

How big was it?

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

It released roughly the energy of 19 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 39 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M2.1 releases about 29× the energy of M1.1, and its waves are about 9.3× taller on a seismogram. Energy: 19 kg of TNT vs 674 g of TNT.

Each square is the energy of one M1.1. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

63 later earthquakes within 30 km; the largest was M3.1 8 days ago. 18 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.1

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
20.421.820
28.101.828
30.792.139
35.891.89
46.701.10
47.961.77
50.381.70
70.562.322
76.642.117
79.741.71
89.400.90
96.722.339
103.171.99
117.571.38
124.202.1-1
144.702.345
148.261.730
149.301.713
164.861.929
169.722.235
180.491.710
187.461.50
187.462.7-1
196.441.75
204.241.83
206.751.829
219.391.86
219.411.97
221.812.3-1
245.991.847
250.512.339
299.912.49
311.222.60
329.431.828
332.991.78
398.261.62
398.301.92
398.541.72
400.891.71
428.460.83
431.821.67
450.662.122
476.761.97
482.631.112
486.032.440
501.933.1-2
502.351.8-2
512.511.77
516.351.76
535.601.830
538.742.473
541.422.441
541.421.923
549.261.60
553.351.928
554.262.117
565.261.930
566.651.950
575.812.18
585.182.50
591.482.415
656.481.70
672.311.929
  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. 2.547 km SW of Hilo, Hawaii, United States11-08 09:14
  5. 2.442 km ESE of Hōlualoa, Hawaii, United States11-04 06:06
  6. 2.435 km SSE of Hōlualoa, Hawaii, United States11-08 15:33
  7. 2.429 km SSE of Hōlualoa, Hawaii, United States11-06 10:48
  8. 2.439 km ESE of Hōlualoa, Hawaii, United States10-27 11:58
  9. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  10. 2.343 km ESE of Hōlualoa, Hawaii, United States10-19 00:47
  11. 2.342 km ESE of Hōlualoa, Hawaii, United States10-25 10:34
  12. 2.339 km ESE of Hōlualoa, Hawaii, United States10-21 00:46
  13. 2.314 km SE of Hōlualoa, Hawaii, United States10-17 22:38
  14. 2.348 km WSW of Hilo, Hawaii, United States10-24 05:53
  15. 2.238 km ESE of Hōlualoa, Hawaii, United States10-22 01:47
  16. 2.138 km SE of Hōlualoa, Hawaii, United States10-16 06:51
  17. 2.135 km SSE of Hōlualoa, Hawaii, United States10-18 04:43
  18. 2.117 km SE of Hōlualoa, Hawaii, United States11-02 18:44
  19. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  20. 2.128 km SSE of Hōlualoa, Hawaii, United States11-07 02:20
  21. 2.142 km ESE of Hōlualoa, Hawaii, United States10-20 04:16
  22. 1.951 km ESE of Hōlualoa, Hawaii, United States11-03 20:50
  23. 1.941 km ESE of Hōlualoa, Hawaii, United States11-07 14:43
  24. 1.952 km WSW of Hawaiian Paradise Park, United States10-19 07:14
  25. 1.962 km SE of Hōlualoa, Hawaii, United States10-24 03:29

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 hv75056482. First recorded here 15 Oct 2026, 21:46:23 UTC. Solutions: USGS · HV (usgs:hv75056482). Cite as: SeismoAtlas, “M2.1 earthquake 37 km ESE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75056482-m2-1-earthquake-37-km-ese-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75056482. SeismoAtlas is not an official warning service.