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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 00:46 local time (10:46 UTC) on 15 Sept 2026, at a depth of 32 km, according to USGS.

Data: USGS · updated 2026-09-15 19:20 UTC · reviewed

Magnitude
2.6micro
local magnitude (Richter) (ml)
Depth
32.5 km
Status
Reviewed
Origin time
2026-09-15 10:46:25 UTC
Local: 15 Sept 2026, 00:46:25 (Pacific/Honolulu)
Epicentre
19.192° N, 155.504° 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. 11,40471 kmINot felt
HiloHawaii, United States · pop. 43,26374 kmINot felt
HonoluluHawaii, United States · pop. 350,964340 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 ml32.5 km19.19° N, 155.50° W–Reviewed

How big was it?

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

It released roughly the energy of 124 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 32 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 33× the energy of M1.6, and its waves are about 10× taller on a seismogram. Energy: 124 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

81 later earthquakes within 30 km; the largest was M4.1 10 days ago. 4 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.6

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
67.844.112
70.662.510
72.563.014
88.702.814
100.642.612
147.332.631
151.721.830
152.202.631
158.871.831
159.381.933
161.081.728
163.201.831
166.331.228
167.591.839
170.411.729
175.582.131
175.852.032
176.741.928
179.531.930
187.401.928
190.581.811
191.821.928
191.872.031
192.911.629
194.692.610
195.601.810
198.071.629
198.161.726
198.192.033
198.661.728
198.811.829
198.831.728
200.881.830
203.041.632
204.101.928
204.351.932
205.492.232
205.961.630
207.922.133
208.061.830
210.981.533
214.021.836
220.751.831
224.682.129
227.772.05
227.841.731
228.201.232
231.131.79
231.421.830
234.091.927
235.291.830
238.201.935
238.661.730
239.002.228
240.451.612
255.461.610
256.582.131
259.792.328
268.661.930
269.272.08
270.552.430
272.912.136
272.922.632
277.802.031
286.891.930
287.391.827
295.191.910
297.891.928
301.591.729
303.582.129
308.851.727
311.562.132
311.831.732
312.822.835
312.872.133
313.182.433
313.591.830
313.752.134
313.982.333
314.131.732
314.682.333
  1. 4.171 km SE of Hōlualoa, Hawaii, United States09-18 06:36
  2. 3.070 km SE of Hōlualoa, Hawaii, United States09-18 11:19
  3. 2.870 km SE of Hōlualoa, Hawaii, United States09-19 03:28
  4. 2.869 km SE of Hōlualoa, Hawaii, United States09-28 11:35
  5. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 14:06
  6. 2.652 km SW of Hawaiian Paradise Park, United States09-26 19:41
  7. 2.671 km SE of Hōlualoa, Hawaii, United States09-19 15:24
  8. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 18:58
  9. 2.671 km SE of Hōlualoa, Hawaii, United States09-23 13:27
  10. 2.570 km SE of Hōlualoa, Hawaii, United States09-18 09:26
  11. 2.471 km SE of Hōlualoa, Hawaii, United States09-28 11:57
  12. 2.457 km SW of Hawaiian Paradise Park, United States09-26 17:19
  13. 2.369 km SE of Hōlualoa, Hawaii, United States09-26 06:33
  14. 2.371 km SE of Hōlualoa, Hawaii, United States09-28 12:45
  15. 2.371 km SE of Hōlualoa, Hawaii, United States09-28 13:27
  16. 2.249 km SW of Hawaiian Paradise Park, United States09-25 09:46
  17. 2.276 km SW of Hawaiian Paradise Park, United States09-24 00:15
  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. 2.172 km SE of Hōlualoa, Hawaii, United States09-28 11:38
  22. 2.164 km SW of Hawaiian Paradise Park, United States09-28 02:21
  23. 2.167 km SW of Hawaiian Paradise Park, United States09-26 03:21
  24. 2.171 km SE of Hōlualoa, Hawaii, United States09-28 10:20
  25. 2.171 km SE of Hōlualoa, Hawaii, United States09-24 02:41

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Event id hv75036222. First recorded here 28 Sept 2026, 17:32:11 UTC. Solutions: USGS · HV (usgs:hv75036222). Cite as: SeismoAtlas, “M2.6 earthquake 67 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75036222-m2-6-earthquake-67-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75036222. SeismoAtlas is not an official warning service.