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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 05:24 local time (15:24 UTC) on 19 Sept 2026, at a depth of 12 km, according to USGS.

Data: USGS · updated 2026-09-22 20:51 UTC · reviewed

Magnitude
2.6micro
local magnitude (Richter) (ml)
Depth
12.4 km
Status
Reviewed
Origin time
2026-09-19 15:24:56 UTC
Local: 19 Sept 2026, 05:24:56 (Pacific/Honolulu)
Epicentre
19.151° N, 155.486° 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. 11,40473 kmINot felt
HiloHawaii, United States · pop. 43,26377 kmINot felt
HonoluluHawaii, United States · pop. 350,964345 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 ml12.4 km19.15° N, 155.49° W–Reviewed

How big was it?

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

It released roughly the energy of 112 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 12 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 30× the energy of M1.6, and its waves are about 9.5× taller on a seismogram. Energy: 112 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

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

Aftershocks

Mainshock M2.6

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
46.692.631
51.081.830
51.552.631
58.231.831
58.741.933
60.441.728
62.561.831
65.681.228
66.951.839
69.771.729
74.932.131
75.212.032
76.091.928
78.891.930
86.761.928
89.931.811
91.181.928
91.232.031
92.271.629
94.052.610
94.961.810
97.431.629
97.521.726
97.552.033
98.021.728
98.171.829
98.191.728
100.231.830
102.401.632
103.451.928
103.711.932
104.852.232
105.311.630
107.282.133
107.421.830
110.331.533
113.381.836
120.111.831
124.042.129
127.122.05
127.201.731
127.561.232
130.481.79
130.781.830
133.441.927
134.651.830
137.551.935
138.021.730
138.362.228
139.801.612
154.821.610
155.941.831
159.141.729
168.021.930
168.632.08
169.901.830
172.272.136
172.282.636
177.162.031
186.251.930
186.751.827
194.551.910
197.251.928
200.951.729
202.942.130
208.211.727
210.921.334
211.191.732
212.172.835
212.231.535
212.541.935
212.951.830
213.112.134
213.331.835
213.491.732
214.041.735
222.872.332
223.991.833
224.052.037
226.751.833
233.281.932
235.391.827
238.241.733
247.851.726
248.391.96
249.291.931
251.241.728
263.622.631
269.891.66
274.641.86
278.941.727
282.701.830
286.192.530
287.192.041
288.491.933
288.831.431
293.931.932
295.071.930
297.521.832
298.111.927
299.041.930
299.722.339
301.881.934
310.221.815
313.501.832
313.641.932
314.031.929
316.021.529
317.931.730
318.021.834
318.361.731
320.261.729
323.591.80
326.621.831
331.921.533
334.941.830
338.372.127
340.061.832
347.701.732
349.841.829
350.701.633
350.721.610
358.281.728
358.601.829
361.591.829
363.431.931
366.521.727
371.971.632
377.601.910
378.941.830
380.861.830
381.113.628
395.461.843
408.461.19
408.471.929
413.411.934
414.041.827
415.031.633
418.421.832
418.511.833
425.461.829
426.651.68
429.151.831
438.891.732
439.641.933
447.411.827
449.732.261
455.551.948
455.631.950
455.711.82
460.401.929
460.861.928
461.172.032
463.391.727
463.471.829
467.061.927
493.611.732
496.081.631
497.091.133
501.661.731
502.731.928
506.541.828
517.381.828
534.061.928
536.881.830
543.891.833
544.041.811
546.291.740
547.261.730
553.161.830
553.601.931
556.941.631
557.521.733
561.401.440
565.611.734
567.961.829
573.402.049
574.541.927
575.061.734
575.961.733
578.441.832
579.851.930
580.391.635
581.101.934
582.302.034
583.931.934
585.192.232
585.701.930
593.292.027
599.781.930
602.371.428
602.511.728
602.611.933
604.281.737
610.750.92
610.762.227
610.771.729
615.192.433
620.951.935
630.111.735
630.811.835
632.331.845
636.761.828
638.941.829
639.611.830
640.362.10
642.841.831
644.551.89
650.091.833
654.431.434
656.621.77
657.262.134
659.041.70
659.842.031
663.372.132
666.281.431
666.701.729
666.981.129
667.971.728
669.151.89
671.121.50
672.571.433
675.021.914
675.932.131
675.981.10
679.501.831
689.521.729
694.241.829
699.061.930
700.923.0-1
708.711.929
710.251.830
711.831.99
717.931.833
  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. 2.869 km SE of Hōlualoa, Hawaii, United States09-28 11:35
  4. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 14:06
  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. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 18:58
  8. 2.671 km SE of Hōlualoa, Hawaii, United States09-23 13:27
  9. 2.568 km SE of Hōlualoa, Hawaii, United States10-01 13:36
  10. 2.469 km SE of Hōlualoa, Hawaii, United States10-15 06:36
  11. 2.368 km SW of Hawaiian Paradise Park, United States09-28 22:17
  12. 2.373 km SSE of Hōlualoa, Hawaii, United States10-02 03:08
  13. 2.261 km SSE of Hōlualoa, Hawaii, United States10-08 09:08
  14. 2.249 km SW of Hawaiian Paradise Park, United States09-25 09:46
  15. 2.276 km SW of Hawaiian Paradise Park, United States09-24 00:15
  16. 2.266 km SW of Hawaiian Paradise Park, United States10-14 00:36
  17. 2.264 km SW of Hawaiian Paradise Park, United States10-15 02:10
  18. 2.167 km SE of Hōlualoa, Hawaii, United States09-24 19:27
  19. 2.170 km SE of Hōlualoa, Hawaii, United States09-22 18:21
  20. 2.171 km SE of Hōlualoa, Hawaii, United States09-28 12:31
  21. 2.173 km SW of Hawaiian Paradise Park, United States10-03 17:47
  22. 2.169 km SE of Hōlualoa, Hawaii, United States10-17 00:40
  23. 2.177 km SW of Hawaiian Paradise Park, United States10-17 19:20
  24. 2.167 km SE of Hōlualoa, Hawaii, United States10-17 06:47
  25. 2.171 km SE of Hōlualoa, Hawaii, United States09-24 02:41

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Reports on SeismoAtlas

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Event id hv75040197. First recorded here 28 Sept 2026, 17:32:10 UTC. Solutions: USGS · HV (usgs:hv75040197). Cite as: SeismoAtlas, “M2.6 earthquake 71 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75040197-m2-6-earthquake-71-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75040197. SeismoAtlas is not an official warning service.