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SeismoAtlas

M2.1 earthquake 68 km SE of Hōlualoa, Hawaii, United States

A magnitude 2.1 earthquake struck 68 km SE of Hōlualoa, Hawaii, United States at 20:17 local time (06:17 UTC) on 24 Oct 2026, at a depth of 32 km, according to USGS.

revised from M2.2

Data: USGS · updated 2026-10-26 22:43 UTC · reviewed

Magnitude
2.1micro
local magnitude (Richter) (ml)
revised from 2.2
Depth
32.4 km
Status
Reviewed
Origin time
2026-10-25 06:17:58 UTC
Local: 24 Oct 2026, 20:17:58 (Pacific/Honolulu)
Epicentre
19.180° N, 155.496° 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. 8,53868 kmINot felt
Hawaiian Paradise ParkHawaii, United States · pop. 11,40472 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 2.232.4 km19.18° N, 155.50° 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 19 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.

M2.1 releases about 29× the energy of M1.1, and its waves are about 9.3× taller on a seismogram. Energy: 19 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

153 later earthquakes within 30 km; the largest was M3.1 8 days ago. 56 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.1

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
4.282.339
11.441.228
12.481.830
17.391.740
18.991.931
20.791.731
22.981.832
31.252.129
38.481.828
40.541.829
44.141.830
45.471.831
53.311.732
57.212.133
58.131.931
59.701.731
60.542.530
63.491.733
65.621.230
72.761.729
72.771.833
78.551.233
80.851.828
81.701.829
83.201.828
86.761.78
94.101.832
94.152.026
95.141.831
96.921.929
105.132.232
106.881.830
114.991.930
118.561.91
118.572.733
129.041.830
129.841.930
130.511.832
132.421.838
133.651.928
133.731.332
135.291.730
137.831.832
139.172.132
142.671.830
145.741.931
145.762.00
147.031.79
147.081.930
148.531.932
148.591.829
148.781.430
148.881.934
149.531.636
149.582.130
154.671.71
164.711.846
164.712.052
168.241.932
168.371.930
170.472.432
170.771.728
171.321.828
177.281.913
179.661.827
180.011.829
182.711.829
185.591.67
186.701.331
198.521.829
199.931.726
201.371.831
201.401.732
210.251.927
213.581.726
223.241.829
226.521.731
230.541.97
238.101.729
238.411.931
242.831.329
248.901.828
255.703.1-2
256.121.8-2
260.372.132
262.161.933
262.321.829
266.281.77
269.061.731
270.121.76
271.811.830
277.741.739
279.741.732
289.261.529
289.381.830
289.911.733
295.202.441
295.201.923
295.572.028
301.241.729
307.121.928
313.281.830
318.741.917
319.031.930
319.791.93
321.521.928
322.001.730
324.251.929
326.781.329
328.131.930
328.391.928
329.592.18
331.201.933
335.271.842
342.361.911
342.951.937
346.561.831
347.241.929
351.771.932
358.711.736
358.721.935
358.732.344
359.002.040
359.312.612
359.501.713
365.352.531
365.412.231
365.461.834
374.411.929
379.532.629
381.001.929
382.731.732
384.701.930
388.622.131
389.751.736
390.181.829
390.571.931
394.841.732
395.411.829
398.771.827
398.881.930
409.091.530
410.771.727
411.551.727
426.081.929
430.211.731
434.441.931
441.821.828
443.341.928
443.651.736
444.472.129
444.992.629
446.551.729
  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. 2.342 km ESE of Hōlualoa, Hawaii, United States10-25 10:34
  11. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  12. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  13. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  14. 2.168 km SE of Hōlualoa, Hawaii, United States10-27 15:30
  15. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  16. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  17. 2.174 km SW of Hawaiian Paradise Park, United States11-10 10:55
  18. 2.168 km SE of Hōlualoa, Hawaii, United States10-26 13:32
  19. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  20. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  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

Did you feel it?

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Reports on SeismoAtlas

No reports yet.

Event id hv75063491. First recorded here 25 Oct 2026, 06:21:34 UTC. Solutions: USGS · HV (usgs:hv75063491). Cite as: SeismoAtlas, “M2.1 earthquake 68 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75063491-m2-1-earthquake-68-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75063491. SeismoAtlas is not an official warning service.