Skip to content
SeismoAtlas

M2.6 earthquake 67 km SE of Hōlualoa, Hawaii, United States

A magnitude 2.6 earthquake struck 67 km SE of Hōlualoa, Hawaii, United States at 08:58 local time (18:58 UTC) on 21 Sept 2026, at a depth of 31 km, according to USGS.

Data: USGS · updated 2026-09-26 16:57 UTC · reviewed

Magnitude
2.6micro
local magnitude (Richter) (ml)
Depth
31 km
Status
Reviewed
Origin time
2026-09-21 18:58:13 UTC
Local: 21 Sept 2026, 08:58:13 (Pacific/Honolulu)
Epicentre
19.180° N, 155.508° 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. 8,53867 kmINot felt
Hawaiian Paradise ParkHawaii, United States · pop. 11,40473 kmINot felt
HiloHawaii, United States · pop. 43,26375 kmINot felt
HonoluluHawaii, United States · pop. 350,964341 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 ml31 km19.18° N, 155.51° W–Reviewed

Advertisement

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 31 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

77 later earthquakes within 30 km; the largest was M2.8 16 h ago. 8 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.6

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
6.681.831
7.191.933
8.881.728
11.011.831
14.131.228
15.401.839
18.221.729
23.382.131
23.662.032
24.541.928
27.341.930
35.201.928
38.381.811
39.621.928
39.682.031
40.711.629
42.492.610
43.401.810
45.871.629
45.971.726
45.992.033
46.461.728
46.621.829
46.631.728
48.681.830
50.841.632
51.901.928
52.151.932
53.292.232
53.761.630
55.722.133
55.871.830
58.781.533
61.831.836
68.551.831
72.492.129
75.572.05
75.651.731
76.001.232
78.931.79
79.231.830
81.891.927
83.091.830
86.001.935
86.461.730
86.802.228
88.251.612
103.271.610
104.391.831
107.591.729
116.461.930
117.072.08
118.351.830
120.712.136
120.732.632
125.612.031
134.691.930
135.191.827
143.001.910
145.701.928
149.391.729
151.392.129
156.661.727
159.372.132
159.641.732
160.622.835
160.672.133
160.982.433
161.401.830
161.562.134
161.782.333
161.931.732
162.482.333
171.322.332
172.441.833
172.492.037
175.201.833
  1. 2.869 km SE of Hōlualoa, Hawaii, United States09-28 11:35
  2. 2.652 km SW of Hawaiian Paradise Park, United States09-26 19:41
  3. 2.671 km SE of Hōlualoa, Hawaii, United States09-23 13:27
  4. 2.471 km SE of Hōlualoa, Hawaii, United States09-28 11:57
  5. 2.368 km SW of Hawaiian Paradise Park, United States09-28 22:17
  6. 2.371 km SE of Hōlualoa, Hawaii, United States09-28 12:45
  7. 2.371 km SE of Hōlualoa, Hawaii, United States09-28 13:27
  8. 2.249 km SW of Hawaiian Paradise Park, United States09-25 09:46
  9. 2.276 km SW of Hawaiian Paradise Park, United States09-24 00:15
  10. 2.167 km SE of Hōlualoa, Hawaii, United States09-24 19:27
  11. 2.170 km SE of Hōlualoa, Hawaii, United States09-22 18:21
  12. 2.171 km SE of Hōlualoa, Hawaii, United States09-28 12:31
  13. 2.172 km SE of Hōlualoa, Hawaii, United States09-28 11:38
  14. 2.164 km SW of Hawaiian Paradise Park, United States09-28 02:21
  15. 2.171 km SE of Hōlualoa, Hawaii, United States09-28 10:20
  16. 2.171 km SE of Hōlualoa, Hawaii, United States09-24 02:41
  17. 2.166 km SE of Hōlualoa, Hawaii, United States09-26 19:41
  18. 2.067 km SE of Hōlualoa, Hawaii, United States09-23 10:38
  19. 2.052 km SW of Hawaiian Paradise Park, United States09-24 22:32
  20. 2.069 km SE of Hōlualoa, Hawaii, United States09-23 16:57
  21. 2.057 km ESE of Hōlualoa, Hawaii, United States09-26 16:02
  22. 2.069 km SE of Hōlualoa, Hawaii, United States09-28 23:27
  23. 2.070 km SE of Hōlualoa, Hawaii, United States09-22 18:37
  24. 2.067 km SE of Hōlualoa, Hawaii, United States09-27 00:34
  25. 1.958 km SW of Hawaiian Paradise Park, United States09-22 19:30

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

How strong was the shaking where you were?

Anonymous. No account, no cookies. A short automatic check runs in your browser instead of a third-party captcha.

Reports on SeismoAtlas

No reports yet.

Event id hv75041332. First recorded here 28 Sept 2026, 17:32:10 UTC. Solutions: USGS · HV (usgs:hv75041332). Cite as: SeismoAtlas, “M2.6 earthquake 67 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75041332-m2-6-earthquake-67-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75041332. SeismoAtlas is not an official warning service.