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SeismoAtlas

M1.9 earthquake 66 km SE of Hōlualoa, Hawaii, United States

A magnitude 1.9 earthquake struck 66 km SE of Hōlualoa, Hawaii, United States at 15:22 local time (01:22 UTC) on 24 Oct 2026, at a depth of 9 km, according to USGS.

revised from M2.2

Data: USGS · updated 2026-10-26 22:36 UTC · reviewed

Magnitude
1.9micro
local magnitude (Richter) (ml)
revised from 2.2
Depth
9.3 km
Status
Reviewed
Origin time
2026-10-25 01:22:02 UTC
Local: 24 Oct 2026, 15:22:02 (Pacific/Honolulu)
Epicentre
19.179° N, 155.536° 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. 8,53866 kmINot felt
Kailua-KonaHawaii, United States · pop. 11,97571 kmINot felt
HiloHawaii, United States · pop. 43,26377 kmINot felt
HonoluluHawaii, United States · pop. 350,964339 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 Survey1.9 mlwas 2.29.3 km19.18° N, 155.54° 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 12 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 9 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.9 releases about 26× the energy of M1.0, and its waves are about 8.7× taller on a seismogram. Energy: 12 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

155 later earthquakes within 30 km; the largest was M3.1 8 days ago. 53 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.9

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.822.133
1.671.928
4.691.847
4.932.132
9.222.339
16.371.228
17.421.830
22.321.740
23.921.931
25.721.731
27.911.832
36.182.129
43.421.828
45.471.829
49.071.830
50.401.831
58.241.732
62.142.133
63.061.931
64.631.731
65.472.530
68.421.733
70.551.230
77.691.729
77.701.833
83.481.233
85.781.828
86.641.829
88.141.828
91.701.78
99.031.832
99.082.026
100.071.831
101.851.929
110.062.232
111.811.830
119.921.930
123.502.733
133.981.830
134.771.930
135.441.832
137.351.838
138.581.928
138.661.332
140.221.730
142.771.832
144.102.132
147.601.830
150.671.931
150.692.00
151.961.79
152.011.930
153.471.932
153.521.829
153.721.430
153.811.934
154.471.636
154.512.130
159.601.71
169.641.846
169.642.052
173.171.932
173.301.930
175.402.432
175.711.728
176.251.828
182.211.913
184.591.827
184.941.829
187.641.829
190.531.67
191.631.331
203.461.829
204.861.726
206.301.831
206.331.732
215.181.927
218.521.726
228.171.829
231.461.731
235.471.97
243.031.729
243.341.931
244.742.440
247.771.329
253.831.828
260.633.1-2
261.051.8-2
265.302.132
267.091.933
267.261.829
271.211.77
273.991.731
275.051.76
276.741.830
282.671.739
284.671.732
294.191.529
294.311.830
294.851.733
300.132.441
300.131.923
300.502.028
306.171.729
312.061.928
318.221.830
323.961.930
324.721.93
326.451.928
326.931.730
329.181.929
331.711.329
333.061.930
333.321.928
334.522.18
336.141.933
347.291.911
351.491.831
352.181.929
356.701.932
363.651.736
363.651.935
363.662.344
363.932.040
364.242.612
364.431.713
370.292.531
370.342.231
370.401.834
379.351.929
384.462.629
385.931.929
387.661.732
389.641.930
393.552.131
394.691.736
395.121.829
395.501.931
399.771.732
400.351.829
403.701.827
403.811.930
414.021.530
415.191.70
415.701.727
416.481.727
431.021.929
435.151.731
439.371.931
446.751.828
448.281.928
448.581.736
449.412.129
449.922.231
451.491.729
  1. 3.143 km SE of Hōlualoa, Hawaii, United States11-04 21:59
  2. 2.771 km SW of Hawaiian Paradise Park, United States10-30 04:52
  3. 2.672 km SE of Hōlualoa, Hawaii, United States11-09 05:36
  4. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  5. 2.566 km SE of Hōlualoa, Hawaii, United States10-27 18:50
  6. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  7. 2.442 km ESE of Hōlualoa, Hawaii, United States11-04 06:06
  8. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  9. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  10. 2.342 km ESE of Hōlualoa, Hawaii, United States10-25 10:34
  11. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  12. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  13. 2.267 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  14. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  15. 2.168 km SE of Hōlualoa, Hawaii, United States10-27 15:30
  16. 2.169 km SE of Hōlualoa, Hawaii, United States10-25 02:11
  17. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  18. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  19. 2.174 km SW of Hawaiian Paradise Park, United States11-10 10:55
  20. 2.168 km SE of Hōlualoa, Hawaii, United States10-26 13:32
  21. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  22. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  23. 2.168 km SE of Hōlualoa, Hawaii, United States10-25 06:17
  24. 2.175 km SW of Hawaiian Paradise Park, United States10-31 11:52
  25. 2.067 km SW of Hawaiian Paradise Park, United States10-31 08:03

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 hv75063391. First recorded here 25 Oct 2026, 01:26:22 UTC. Solutions: USGS · HV (usgs:hv75063391). Cite as: SeismoAtlas, “M1.9 earthquake 66 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75063391-m1-9-earthquake-66-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75063391. SeismoAtlas is not an official warning service.