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SeismoAtlas

M1.9 earthquake 62 km SE of Hōlualoa, Hawaii, United States

A magnitude 1.9 earthquake struck 62 km SE of Hōlualoa, Hawaii, United States at 17:29 local time (03:29 UTC) on 23 Oct 2026, at a depth of 7 km, according to USGS.

revised from M2.0

Data: USGS · updated 2026-10-24 03:50 UTC · reviewed

Magnitude
1.9micro
local magnitude (Richter) (ml)
revised from 2.0
Depth
7.2 km
Status
Reviewed
Origin time
2026-10-24 03:29:13 UTC
Local: 23 Oct 2026, 17:29:13 (Pacific/Honolulu)
Epicentre
19.252° N, 155.511° 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. 8,53862 kmINot felt
Kailua-KonaHawaii, United States · pop. 11,97567 kmINot felt
HiloHawaii, United States · pop. 43,26369 kmINot felt
HonoluluHawaii, United States · pop. 350,964335 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 2.07.2 km19.25° N, 155.51° 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 11 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 7 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 23× the energy of M1.0, and its waves are about 8.1× taller on a seismogram. Energy: 11 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

174 later earthquakes within 30 km; the largest was M3.1 8 days ago. 69 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.9

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
2.402.3-1
4.951.949
6.071.4-1
20.611.936
20.721.940
21.881.99
22.702.133
23.551.928
26.571.847
26.812.132
31.102.339
38.251.228
39.301.830
44.201.740
45.801.931
47.601.731
49.791.832
58.062.129
65.301.828
67.351.829
70.951.830
72.281.831
80.121.732
80.502.49
84.022.133
84.941.931
87.352.530
90.301.733
91.812.60
92.431.230
99.571.729
99.581.833
105.361.233
108.521.829
110.021.828
113.581.78
120.911.832
120.962.026
121.951.831
123.731.929
131.942.232
133.691.830
141.801.930
145.371.91
145.382.733
155.861.830
156.651.930
157.321.832
159.231.838
160.461.928
160.541.332
162.101.730
164.651.832
165.982.132
169.481.830
172.551.931
172.572.00
173.841.79
173.891.930
175.351.932
175.401.829
175.601.430
175.691.934
176.351.636
176.392.130
178.841.62
178.881.92
179.131.72
179.191.92
181.481.71
188.021.72
188.032.22
191.521.846
191.522.052
195.181.930
197.282.432
197.591.728
198.131.828
204.091.913
206.471.827
206.821.829
209.050.83
209.521.829
212.411.67
213.511.331
223.792.02
225.341.829
226.741.726
228.181.831
228.211.732
237.061.927
240.401.726
250.051.829
253.341.731
257.351.97
264.911.729
265.221.931
265.842.02
266.622.440
269.651.329
275.711.828
282.513.1-2
282.931.8-2
287.182.132
288.971.933
289.141.829
293.091.77
295.871.731
296.931.76
298.621.830
304.551.739
306.551.732
316.071.529
316.191.830
316.731.733
322.012.441
322.011.923
322.382.028
328.051.729
329.851.60
333.941.928
340.101.830
345.841.930
346.601.93
347.231.950
348.331.928
348.811.730
351.061.929
353.591.329
354.941.930
355.201.928
356.402.18
358.021.933
362.081.842
365.762.50
369.171.911
373.371.831
374.061.929
378.581.932
385.531.736
385.531.935
385.552.344
385.812.040
386.122.612
386.311.713
392.172.531
392.232.231
401.231.929
406.342.629
407.821.929
409.541.732
411.521.930
415.432.131
416.571.736
417.001.829
417.381.931
421.651.732
422.231.829
425.581.827
425.691.930
435.901.530
437.581.727
438.361.727
452.901.929
457.031.731
461.251.931
468.631.828
470.161.928
470.461.736
471.292.129
471.802.231
473.371.729
477.602.58
477.691.930
  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. 2.646 km WSW of Hilo, Hawaii, United States10-27 23:17
  4. 2.672 km SE of Hōlualoa, Hawaii, United States11-09 05:36
  5. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  6. 2.566 km SE of Hōlualoa, Hawaii, United States10-27 18:50
  7. 2.547 km SW of Hilo, Hawaii, United States11-08 09:14
  8. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  9. 2.553 km SW of Hilo, Hawaii, United States11-13 01:05
  10. 2.442 km ESE of Hōlualoa, Hawaii, United States11-04 06:06
  11. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  12. 2.439 km ESE of Hōlualoa, Hawaii, United States10-27 11:58
  13. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  14. 2.342 km ESE of Hōlualoa, Hawaii, United States10-25 10:34
  15. 2.348 km WSW of Hilo, Hawaii, United States10-24 05:53
  16. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  17. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  18. 2.267 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  19. 2.239 km SW of Hawaiian Paradise Park, United States10-31 23:31
  20. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  21. 2.168 km SE of Hōlualoa, Hawaii, United States10-27 15:30
  22. 2.169 km SE of Hōlualoa, Hawaii, United States10-25 02:11
  23. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  24. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  25. 2.174 km SW of Hawaiian Paradise Park, United States11-10 10:55

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Reports on SeismoAtlas

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Event id hv75063106. First recorded here 24 Oct 2026, 03:33:27 UTC. Solutions: USGS · HV (usgs:hv75063106). Cite as: SeismoAtlas, “M1.9 earthquake 62 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75063106-m1-9-earthquake-62-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75063106. SeismoAtlas is not an official warning service.