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SeismoAtlas

M2.2 earthquake 70 km SE of Hōlualoa, Hawaii, United States

A magnitude 2.2 earthquake struck 70 km SE of Hōlualoa, Hawaii, United States at 04:16 local time (14:16 UTC) on 23 Oct 2026, at a depth of 29 km, according to USGS.

revised from M2.3

Data: USGS · updated 2026-10-26 22:04 UTC · reviewed

Magnitude
2.2micro
local magnitude (Richter) (ml)
revised from 2.3
Depth
29.4 km
Status
Reviewed
Origin time
2026-10-23 14:16:17 UTC
Local: 23 Oct 2026, 04:16:17 (Pacific/Honolulu)
Epicentre
19.163° N, 155.488° 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. 8,53870 kmINot felt
Hawaiian Paradise ParkHawaii, United States · pop. 11,40472 kmINot felt
HiloHawaii, United States · pop. 43,26376 kmINot felt
HonoluluHawaii, United States · pop. 350,964344 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 Survey2.2 mlwas 2.329.4 km19.16° N, 155.49° 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 35 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 29 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M2.2 releases about 36× the energy of M1.2, and its waves are about 11× taller on a seismogram. Energy: 35 kg of TNT vs 951 g of TNT.

Each square is the energy of one M1.2. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

167 later earthquakes within 30 km; the largest was M3.3 20 days ago. 54 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.2

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.551.829
1.603.329
3.162.032
3.461.631
3.561.130
5.511.428
7.511.9-1
9.021.830
13.191.86
13.221.97
18.171.949
33.821.936
33.941.940
35.101.99
35.922.133
36.761.928
39.791.847
40.032.132
51.471.228
52.511.830
57.421.740
59.021.931
60.821.731
63.011.832
71.272.129
78.511.828
80.571.829
84.171.830
85.501.831
93.341.732
97.242.133
98.151.931
99.731.731
100.562.530
103.521.733
105.651.230
112.791.729
112.791.833
118.581.233
120.881.828
121.731.829
123.231.828
134.131.832
134.182.026
135.171.831
136.951.929
145.162.232
146.901.830
155.021.930
158.591.91
158.602.733
169.071.830
169.871.930
170.531.832
172.451.838
173.681.928
173.761.332
175.321.730
177.861.832
179.202.132
182.701.830
185.771.931
185.782.00
187.061.79
187.111.930
188.561.932
188.621.829
188.811.430
188.911.934
189.561.636
189.612.130
194.701.71
204.741.846
204.742.052
208.261.932
208.401.930
210.502.432
210.801.728
211.351.828
217.311.913
219.691.827
220.041.829
222.741.829
225.621.67
226.721.331
238.551.829
239.961.726
241.401.831
241.431.732
250.281.927
253.611.726
263.271.829
266.551.731
278.121.729
278.441.931
282.861.329
288.931.828
295.733.1-2
296.151.8-2
300.402.132
302.181.933
302.351.829
306.311.77
309.091.731
310.151.76
311.841.830
317.771.739
319.771.732
329.281.529
329.401.830
329.941.733
335.231.923
335.592.028
341.261.729
347.151.928
353.311.830
358.771.917
359.061.930
359.811.93
361.551.928
362.031.730
364.281.929
366.811.329
368.151.930
368.421.928
369.612.18
371.231.933
375.301.842
382.381.911
382.981.937
386.591.831
387.271.929
391.801.932
398.741.736
398.751.935
398.762.344
399.032.040
399.332.612
399.531.713
405.382.531
405.442.231
405.491.834
414.441.929
419.562.629
421.031.929
422.761.732
424.731.930
428.652.131
429.781.736
430.211.829
430.601.931
434.871.732
435.441.829
438.801.827
438.911.930
449.111.530
450.791.727
451.581.727
466.111.929
470.241.731
474.471.931
481.841.828
483.371.928
483.681.736
484.502.129
485.012.629
486.581.729
  1. 3.369 km SE of Hōlualoa, Hawaii, United States10-23 15:52
  2. 3.143 km SE of Hōlualoa, Hawaii, United States11-04 21:59
  3. 2.771 km SW of Hawaiian Paradise Park, United States10-30 04:52
  4. 2.667 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  5. 2.672 km SE of Hōlualoa, Hawaii, United States11-09 05:36
  6. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  7. 2.566 km SE of Hōlualoa, Hawaii, United States10-27 18:50
  8. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  9. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  10. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  11. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  12. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  13. 2.168 km SE of Hōlualoa, Hawaii, United States10-27 15:30
  14. 2.169 km SE of Hōlualoa, Hawaii, United States10-25 02:11
  15. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  16. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  17. 2.174 km SW of Hawaiian Paradise Park, United States11-10 10:55
  18. 2.168 km SE of Hōlualoa, Hawaii, United States10-26 13:32
  19. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  20. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  21. 2.168 km SE of Hōlualoa, Hawaii, United States10-25 06:17
  22. 2.175 km SW of Hawaiian Paradise Park, United States10-31 11:52
  23. 2.067 km SW of Hawaiian Paradise Park, United States10-31 08:03
  24. 2.058 km SW of Hawaiian Paradise Park, United States11-06 13:51
  25. 2.072 km SW of Hawaiian Paradise Park, United States11-09 05:17

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Reports on SeismoAtlas

No reports yet.

Event id hv75062736. First recorded here 23 Oct 2026, 14:20:53 UTC. Solutions: USGS · HV (usgs:hv75062736). Cite as: SeismoAtlas, “M2.2 earthquake 70 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75062736-m2-2-earthquake-70-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75062736. SeismoAtlas is not an official warning service.