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SeismoAtlas

M2.6 earthquake 71 km SE of Hōlualoa, Hawaii, United States

A magnitude 2.6 earthquake struck 71 km SE of Hōlualoa, Hawaii, United States at 03:27 local time (13:27 UTC) on 23 Sept 2026, at a depth of 10 km, according to USGS.

Data: USGS · updated 2026-09-23 20:52 UTC · reviewed

Magnitude
2.6micro
local magnitude (Richter) (ml)
Depth
10.5 km
Status
Reviewed
Origin time
2026-09-23 13:27:40 UTC
Local: 23 Sept 2026, 03:27:40 (Pacific/Honolulu)
Epicentre
19.162° N, 155.485° 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. 8,53871 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 Survey2.6 ml10.5 km19.16° N, 155.48° W–Reviewed

How big was it?

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

It released roughly the energy of 108 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.

M2.6 releases about 29× the energy of M1.6, and its waves are about 9.3× taller on a seismogram. Energy: 108 kg of TNT vs 4 kg of TNT.

Each square is the energy of one M1.6. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

244 later earthquakes within 30 km; the largest was M3.6 38 days ago. 24 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.6

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.911.810
3.381.629
3.481.726
3.502.033
3.971.728
4.131.829
4.141.728
6.191.830
8.351.632
9.411.928
9.661.932
10.802.232
11.271.630
13.232.133
13.381.830
16.291.533
19.331.836
26.061.831
29.992.129
33.082.05
33.161.731
33.511.232
36.441.79
36.741.830
39.401.927
40.601.830
43.511.935
43.971.730
44.312.228
45.761.612
60.781.610
61.891.831
65.101.729
73.971.930
74.582.08
75.861.830
78.222.136
78.242.636
83.122.031
92.201.930
92.701.827
100.511.910
103.201.928
106.901.729
108.902.130
114.161.727
116.881.334
117.151.732
118.132.835
118.181.535
118.491.935
118.911.830
119.062.134
119.291.835
119.441.732
119.991.735
128.822.332
129.951.833
130.002.037
132.711.833
139.231.932
141.351.827
144.201.733
153.811.726
154.341.96
155.241.931
157.201.728
169.582.631
175.851.66
180.591.86
184.891.727
188.661.830
192.152.530
193.152.041
194.441.933
194.791.431
199.891.932
201.031.930
203.471.832
204.071.927
204.991.930
205.672.339
207.831.934
216.171.815
219.461.832
219.591.932
219.981.929
221.971.529
223.891.730
223.971.834
224.321.731
226.221.729
229.551.80
232.571.831
237.871.533
240.901.830
244.322.127
246.011.832
253.651.732
255.801.829
256.651.633
256.681.610
264.241.728
264.551.829
267.541.829
269.381.931
272.471.727
277.921.632
283.561.910
284.901.830
286.811.830
287.073.628
301.421.843
314.421.19
314.431.929
319.371.934
320.001.827
320.991.633
324.381.832
324.471.833
331.411.829
332.601.68
335.101.831
344.841.732
345.601.933
353.371.827
355.692.261
361.511.948
361.591.950
361.671.82
366.361.929
366.811.928
367.122.032
369.351.727
369.431.829
373.021.927
399.571.732
402.031.631
403.041.133
407.621.731
408.681.928
412.501.828
423.341.828
440.011.928
442.831.830
449.851.833
449.991.811
452.241.740
453.221.730
459.111.830
459.561.931
462.901.631
463.481.733
467.361.440
471.561.734
473.911.829
479.362.049
480.501.927
481.021.734
481.921.733
484.401.832
485.801.930
486.341.635
487.061.934
488.262.034
489.881.934
491.142.232
491.661.930
499.242.027
502.331.80
505.731.930
508.331.428
508.461.728
508.571.933
510.241.737
516.700.92
516.712.227
516.731.729
521.152.433
526.901.935
536.071.735
536.771.835
538.281.845
542.711.828
544.891.829
545.561.830
546.312.10
548.801.831
550.501.89
556.041.833
560.391.434
562.211.731
562.571.77
563.222.134
565.001.70
565.792.031
569.332.132
572.241.431
572.661.729
572.941.129
573.931.728
575.101.89
577.081.50
578.531.433
580.971.914
581.882.131
581.941.10
585.451.831
595.471.729
600.191.829
605.021.930
606.873.0-1
614.671.929
616.201.830
617.781.99
623.891.833
626.091.731
632.181.38
632.571.931
639.292.337
641.721.930
642.811.929
648.081.828
648.261.931
651.062.834
662.871.730
672.711.234
679.471.929
692.111.632
692.161.829
692.712.132
693.241.829
695.771.933
696.001.935
696.361.935
696.551.835
699.501.735
700.841.733
704.692.22
704.801.830
711.061.75
712.261.840
714.371.831
719.462.030
  1. 3.643 km SW of Hawaiian Paradise Park, United States10-05 12:31
  2. 3.056 km SSE of Hōlualoa, Hawaii, United States10-18 20:19
  3. 2.875 km SW of Hawaiian Paradise Park, United States10-20 16:31
  4. 2.869 km SE of Hōlualoa, Hawaii, United States09-28 11:35
  5. 2.655 km SW of Hawaiian Paradise Park, United States09-30 15:02
  6. 2.655 km SW of Hawaiian Paradise Park, United States09-26 19:41
  7. 2.568 km SE of Hōlualoa, Hawaii, United States10-01 13:36
  8. 2.469 km SE of Hōlualoa, Hawaii, United States10-15 06:36
  9. 2.368 km SW of Hawaiian Paradise Park, United States09-28 22:17
  10. 2.373 km SSE of Hōlualoa, Hawaii, United States10-02 03:08
  11. 2.374 km SW of Hawaiian Paradise Park, United States10-20 04:45
  12. 2.261 km SSE of Hōlualoa, Hawaii, United States10-08 09:08
  13. 2.249 km SW of Hawaiian Paradise Park, United States09-25 09:46
  14. 2.276 km SW of Hawaiian Paradise Park, United States09-24 00:15
  15. 2.266 km SW of Hawaiian Paradise Park, United States10-14 00:36
  16. 2.264 km SW of Hawaiian Paradise Park, United States10-15 02:10
  17. 2.243 km SW of Hawaiian Paradise Park, United States10-22 22:08
  18. 2.167 km SE of Hōlualoa, Hawaii, United States09-24 19:27
  19. 2.171 km SE of Hōlualoa, Hawaii, United States09-28 12:31
  20. 2.173 km SW of Hawaiian Paradise Park, United States10-03 17:47
  21. 2.169 km SE of Hōlualoa, Hawaii, United States10-17 00:40
  22. 2.177 km SW of Hawaiian Paradise Park, United States10-17 19:20
  23. 2.167 km SE of Hōlualoa, Hawaii, United States10-17 06:47
  24. 2.171 km SE of Hōlualoa, Hawaii, United States09-24 02:41
  25. 2.164 km SW of Hawaiian Paradise Park, United States09-28 02:21

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Reports on SeismoAtlas

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Event id hv75042652. First recorded here 28 Sept 2026, 17:32:10 UTC. Solutions: USGS · HV (usgs:hv75042652). Cite as: SeismoAtlas, “M2.6 earthquake 71 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75042652-m2-6-earthquake-71-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75042652. SeismoAtlas is not an official warning service.