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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 03:32 local time (13:32 UTC) on 26 Oct 2026, at a depth of 29 km, according to USGS.

revised from M2.2

Data: USGS · updated 2026-10-27 00:16 UTC · reviewed

Magnitude
2.1micro
local magnitude (Richter) (ml)
revised from 2.2
Depth
29.3 km
Status
Reviewed
Origin time
2026-10-26 13:32:44 UTC
Local: 26 Oct 2026, 03:32:44 (Pacific/Honolulu)
Epicentre
19.180° N, 155.495° 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 2.229.3 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 21 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 29 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 32× the energy of M1.1, and its waves are about 10× taller on a seismogram. Energy: 21 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

145 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

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
7.241.828
9.291.829
12.891.830
14.231.831
22.071.732
25.962.133
26.881.931
28.461.731
29.292.530
32.241.733
34.381.230
41.511.729
41.521.833
47.301.233
49.601.828
50.461.829
51.961.828
55.521.78
62.851.832
62.912.026
63.891.831
65.671.929
73.882.232
75.631.830
83.751.930
87.311.91
87.322.733
97.801.830
98.591.930
99.261.832
101.171.838
102.401.928
102.491.332
104.041.730
106.591.832
107.922.132
111.421.830
114.491.931
114.512.00
115.791.79
115.841.930
117.291.932
117.341.829
117.541.430
117.631.934
118.291.636
118.332.130
123.421.71
133.461.846
133.472.052
136.991.932
137.121.930
139.232.432
139.531.728
140.081.828
146.031.913
148.411.827
148.761.829
151.461.829
154.351.67
155.451.331
167.281.829
168.681.726
170.121.831
170.151.732
179.001.927
182.341.726
191.991.829
195.281.731
199.291.97
206.851.729
207.161.931
211.591.329
217.651.828
224.453.1-2
224.871.8-2
229.122.132
230.911.933
231.081.829
235.041.77
237.811.731
238.881.76
240.561.830
246.501.739
248.501.732
258.011.529
258.131.830
258.671.733
263.952.441
263.951.923
264.322.028
269.991.729
275.881.928
282.041.830
287.491.917
287.781.930
288.541.93
290.271.928
290.751.730
293.001.929
295.531.329
296.881.930
297.141.928
298.342.18
299.961.933
304.031.842
311.111.911
311.701.937
315.311.831
316.001.929
320.521.932
327.471.736
327.471.935
327.492.344
327.752.040
328.062.612
328.251.713
334.112.531
334.172.231
334.221.834
343.171.929
348.282.629
349.761.929
351.491.732
353.461.930
357.372.131
358.511.736
358.941.829
359.321.931
363.591.732
364.171.829
367.521.827
367.631.930
377.841.530
379.521.727
380.301.727
394.841.929
398.971.731
403.191.931
410.571.828
412.101.928
412.411.736
413.232.129
413.742.629
415.311.729
  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. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  18. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  19. 2.175 km SW of Hawaiian Paradise Park, United States10-31 11:52
  20. 2.067 km SW of Hawaiian Paradise Park, United States10-31 08:03
  21. 2.058 km SW of Hawaiian Paradise Park, United States11-06 13:51
  22. 2.072 km SW of Hawaiian Paradise Park, United States11-09 05:17
  23. 2.062 km SW of Hawaiian Paradise Park, United States10-29 04:27
  24. 2.056 km SSW of Hawaiian Paradise Park, United States11-01 03:00
  25. 1.969 km SW of Hawaiian Paradise Park, United States10-27 16:25

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Reports close 14 days after an earthquake.

Reports on SeismoAtlas

No reports yet.

Event id hv75064066. First recorded here 26 Oct 2026, 13:36:57 UTC. Solutions: USGS · HV (usgs:hv75064066). Cite as: SeismoAtlas, “M2.1 earthquake 68 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75064066-m2-1-earthquake-68-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75064066. SeismoAtlas is not an official warning service.