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SeismoAtlas

M2.7 earthquake 42 km ESE of Hōlualoa, Hawaii, United States

A magnitude 2.7 earthquake struck 42 km ESE of Hōlualoa, Hawaii, United States at 09:32 local time (19:32 UTC) on 22 Oct 2026, at a depth of -1 km, according to USGS.

revised from M2.6

Data: USGS · updated 2026-10-22 21:02 UTC · reviewed

Magnitude
2.7micro
local magnitude (Richter) (ml)
revised from 2.6
Depth
-1.4 km
Status
Reviewed
Origin time
2026-10-22 19:32:16 UTC
Local: 22 Oct 2026, 09:32:16 (Pacific/Honolulu)
Epicentre
19.423° N, 155.609° 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. 8,53842 kmINot felt
Kailua-KonaHawaii, United States · pop. 11,97548 kmINot felt
HiloHawaii, United States · pop. 43,26364 kmINot felt
HonoluluHawaii, United States · pop. 350,964315 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. Likely felt out to about 12 km.

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 Survey2.7 mlwas 2.8-1.4 km19.42° N, 155.61° W–Reviewed · 2 revisions

How big was it?

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

It released roughly the energy of 169 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 -1 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M2.7 releases about 32× the energy of M1.7, and its waves are about 10× taller on a seismogram. Energy: 169 kg of TNT vs 5 kg of TNT.

Each square is the energy of one M1.7. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

83 later earthquakes within 30 km; the largest was M3.1 8 days ago. 43 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.7

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
8.981.75
16.771.83
19.281.829
24.241.428
27.751.830
31.931.86
31.951.97
34.352.3-1
53.831.99
54.652.133
55.491.928
58.521.847
58.762.132
63.052.339
71.251.830
77.751.931
79.551.731
90.012.129
99.301.829
104.231.831
112.452.49
115.972.133
119.302.530
123.762.60
137.311.233
141.971.828
145.531.78
163.892.232
196.601.832
197.932.132
204.522.00
207.541.430
210.791.62
210.831.92
211.081.72
213.431.71
227.131.930
229.232.432
241.000.83
244.361.67
245.461.331
263.202.122
289.301.97
295.171.112
298.572.440
301.601.329
314.463.1-2
314.881.8-2
325.041.77
328.881.76
330.571.830
338.501.732
348.141.830
351.282.473
353.962.441
353.961.923
361.801.60
365.881.928
366.802.117
377.791.930
378.551.93
379.181.950
380.281.928
380.761.730
385.541.329
386.891.930
388.352.18
389.971.933
397.712.50
404.022.415
424.112.531
424.172.231
443.461.930
453.601.732
454.181.829
457.531.827
457.641.930
467.851.530
469.011.70
484.851.929
493.201.931
502.111.928
503.752.629
  1. 3.143 km SE of Hōlualoa, Hawaii, United States11-04 21:59
  2. 2.667 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  3. 2.646 km WSW of Hilo, Hawaii, United States10-27 23:17
  4. 2.566 km SE of Hōlualoa, Hawaii, United States10-27 18:50
  5. 2.547 km SW of Hilo, Hawaii, United States11-08 09:14
  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. 2.435 km SSE of Hōlualoa, Hawaii, United States11-08 15:33
  10. 2.429 km SSE of Hōlualoa, Hawaii, United States11-06 10:48
  11. 2.439 km ESE of Hōlualoa, Hawaii, United States10-27 11:58
  12. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  13. 2.342 km ESE of Hōlualoa, Hawaii, United States10-25 10:34
  14. 2.348 km WSW of Hilo, Hawaii, United States10-24 05:53
  15. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  16. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  17. 2.168 km SE of Hōlualoa, Hawaii, United States10-27 15:30
  18. 2.169 km SE of Hōlualoa, Hawaii, United States10-25 02:11
  19. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  20. 2.117 km SE of Hōlualoa, Hawaii, United States11-02 18:44
  21. 2.168 km SE of Hōlualoa, Hawaii, United States10-26 13:32
  22. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  23. 2.128 km SSE of Hōlualoa, Hawaii, United States11-07 02:20
  24. 2.168 km SE of Hōlualoa, Hawaii, United States10-25 06:17
  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 hv75062386. First recorded here 22 Oct 2026, 19:37:06 UTC. Solutions: USGS · HV (usgs:hv75062386). Cite as: SeismoAtlas, “M2.7 earthquake 42 km ESE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75062386-m2-7-earthquake-42-km-ese-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75062386. SeismoAtlas is not an official warning service.