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SeismoAtlas

M2.1 earthquake 69 km SE of Hōlualoa, Hawaii, United States

A magnitude 2.1 earthquake struck 69 km SE of Hōlualoa, Hawaii, United States at 16:11 local time (02:11 UTC) on 24 Oct 2026, at a depth of 33 km, according to USGS.

revised from M2.3

Data: USGS · updated 2026-10-26 22:39 UTC · reviewed

Magnitude
2.1micro
local magnitude (Richter) (ml)
revised from 2.3
Depth
32.5 km
Status
Reviewed
Origin time
2026-10-25 02:11:29 UTC
Local: 24 Oct 2026, 16:11:29 (Pacific/Honolulu)
Epicentre
19.181° N, 155.488° 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. 8,53869 kmINot felt
Hawaiian Paradise ParkHawaii, United States · pop. 11,40471 kmINot felt
HiloHawaii, United States · pop. 43,26374 kmINot felt
HonoluluHawaii, United States · pop. 350,964342 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 Survey2.1 mlwas 2.332.5 km19.18° N, 155.49° W–Reviewed · 1 revision

How big was it?

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

It released roughly the energy of 24 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 33 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M2.1 releases about 35× the energy of M1.1, and its waves are about 11× taller on a seismogram. Energy: 24 kg of TNT vs 674 g of TNT.

Each square is the energy of one M1.1. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

155 later earthquakes within 30 km; the largest was M3.1 8 days ago. 53 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.1

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.841.928
3.871.847
4.112.132
15.551.228
16.591.830
21.501.740
23.101.931
24.901.731
27.091.832
35.352.129
42.591.828
44.651.829
48.251.830
49.581.831
57.421.732
61.322.133
62.231.931
63.811.731
64.642.530
67.601.733
69.731.230
76.871.729
76.871.833
82.661.233
84.961.828
85.811.829
87.311.828
90.871.78
98.211.832
98.262.026
99.251.831
101.031.929
109.242.232
110.981.830
119.101.930
122.671.91
122.682.733
133.151.830
133.951.930
134.611.832
136.531.838
137.761.928
137.841.332
139.401.730
141.941.832
143.282.132
146.781.830
149.851.931
149.862.00
151.141.79
151.191.930
152.641.932
152.701.829
152.891.430
152.991.934
153.641.636
153.692.130
158.781.71
168.811.846
168.822.052
172.341.932
172.481.930
174.582.432
174.881.728
175.431.828
181.391.913
183.771.827
184.121.829
186.821.829
189.701.67
190.801.331
202.631.829
204.041.726
205.481.831
205.511.732
214.361.927
217.691.726
227.351.829
230.631.731
234.651.97
242.201.729
242.521.931
246.941.329
253.011.828
259.813.1-2
260.231.8-2
264.482.132
266.261.933
266.431.829
270.391.77
273.171.731
274.231.76
275.921.830
281.851.739
283.851.732
293.361.529
293.481.830
294.021.733
299.302.441
299.311.923
299.672.028
305.341.729
311.231.928
317.391.830
322.851.917
323.141.930
323.891.93
325.631.928
326.111.730
328.361.929
330.891.329
332.231.930
332.501.928
333.692.18
335.311.933
339.381.842
346.461.911
347.061.937
350.671.831
351.351.929
355.881.932
362.821.736
362.831.935
362.842.344
363.112.040
363.412.612
363.611.713
369.462.531
369.522.231
369.571.834
378.521.929
383.642.629
385.111.929
386.841.732
388.811.930
392.732.131
393.861.736
394.291.829
394.681.931
398.951.732
399.521.829
402.881.827
402.991.930
413.191.530
414.871.727
415.661.727
430.191.929
434.321.731
438.551.931
445.921.828
447.451.928
447.761.736
448.582.129
449.092.629
450.661.729
  1. 3.143 km SE of Hōlualoa, Hawaii, United States11-04 21:59
  2. 2.771 km SW of Hawaiian Paradise Park, United States10-30 04:52
  3. 2.667 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  4. 2.672 km SE of Hōlualoa, Hawaii, United States11-09 05:36
  5. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  6. 2.566 km SE of Hōlualoa, Hawaii, United States10-27 18:50
  7. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  8. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  9. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  10. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  11. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  12. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  13. 2.168 km SE of Hōlualoa, Hawaii, United States10-27 15:30
  14. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  15. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  16. 2.174 km SW of Hawaiian Paradise Park, United States11-10 10:55
  17. 2.168 km SE of Hōlualoa, Hawaii, United States10-26 13:32
  18. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  19. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  20. 2.168 km SE of Hōlualoa, Hawaii, United States10-25 06:17
  21. 2.175 km SW of Hawaiian Paradise Park, United States10-31 11:52
  22. 2.067 km SW of Hawaiian Paradise Park, United States10-31 08:03
  23. 2.058 km SW of Hawaiian Paradise Park, United States11-06 13:51
  24. 2.072 km SW of Hawaiian Paradise Park, United States11-09 05:17
  25. 2.062 km SW of Hawaiian Paradise Park, United States10-29 04:27

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Reports on SeismoAtlas

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Event id hv75063406. First recorded here 25 Oct 2026, 02:15:24 UTC. Solutions: USGS · HV (usgs:hv75063406). Cite as: SeismoAtlas, “M2.1 earthquake 69 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75063406-m2-1-earthquake-69-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75063406. SeismoAtlas is not an official warning service.