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M1.9 earthquake 68 km SE of Hōlualoa, Hawaii, United States

A magnitude 1.9 earthquake struck 68 km SE of Hōlualoa, Hawaii, United States at 20:40 local time (06:40 UTC) on 31 Oct 2026, at a depth of 30 km, according to USGS. The solution is preliminary and may be revised.

Data: USGS · updated 2026-11-01 06:43 UTC · automatic solution

Magnitude
1.9micro
duration magnitude (md)
Depth
30.1 km
Status
Automatic
Origin time
2026-11-01 06:40:07 UTC
Local: 31 Oct 2026, 20:40:07 (Pacific/Honolulu)
Epicentre
19.193° N, 155.486° 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. 11,40470 kmINot felt
HiloHawaii, United States · pop. 43,26373 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.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · HVheadlineHawaiian Volcano Observatory via U.S. Geological Survey1.9 md30.1 km19.19° N, 155.49° W–Automatic

How big was it?

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

It released roughly the energy of 11 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 30 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.9 releases about 22× the energy of M1.0, and its waves are about 7.9× taller on a seismogram. Energy: 11 kg of TNT vs 477 g of TNT.

Each square is the energy of one M1.0. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

95 later earthquakes within 30 km; the largest was M3.1 8 days ago. 59 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.9

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
2.102.432
2.401.728
2.951.828
8.911.913
11.291.827
11.641.829
14.341.829
17.221.67
18.331.331
30.151.829
31.561.726
33.001.831
33.031.732
41.881.927
45.211.726
54.871.829
58.151.731
62.171.97
69.731.729
70.041.931
71.442.440
74.461.329
80.531.828
87.333.1-2
87.751.8-2
92.002.132
93.791.933
93.951.829
97.911.77
100.691.731
101.751.76
103.441.830
109.371.739
111.371.732
120.891.529
121.011.830
121.541.733
126.832.441
126.831.923
127.202.028
132.871.729
138.751.928
144.911.830
150.371.917
150.661.930
151.421.93
153.151.928
153.631.730
155.881.929
158.411.329
159.761.930
160.021.928
161.222.18
162.831.933
166.901.842
173.991.911
174.581.937
178.191.831
178.871.929
183.401.932
190.351.736
190.351.935
190.362.344
190.632.040
190.942.612
191.131.713
196.982.531
197.042.231
206.041.929
211.162.629
212.631.929
214.361.732
216.331.930
220.252.131
221.381.736
221.821.829
222.201.931
226.471.732
227.041.829
230.401.827
230.511.930
240.721.530
242.401.727
243.181.727
257.721.929
261.841.731
266.071.931
273.451.828
274.981.928
275.281.736
276.102.129
276.622.231
278.191.729
282.422.58
282.511.930
  1. 3.143 km SE of Hōlualoa, Hawaii, United States11-04 21:59
  2. 2.672 km SE of Hōlualoa, Hawaii, United States11-09 05:36
  3. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  4. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  5. 2.553 km SW of Hilo, Hawaii, United States11-13 01:05
  6. 2.442 km ESE of Hōlualoa, Hawaii, United States11-04 06:06
  7. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  8. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  9. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  10. 2.267 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  11. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  12. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  13. 2.174 km SW of Hawaiian Paradise Park, United States11-10 10:55
  14. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  15. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  16. 2.058 km SW of Hawaiian Paradise Park, United States11-06 13:51
  17. 2.072 km SW of Hawaiian Paradise Park, United States11-09 05:17
  18. 1.964 km SW of Hawaiian Paradise Park, United States11-12 17:38
  19. 1.951 km ESE of Hōlualoa, Hawaii, United States11-03 20:50
  20. 1.967 km SE of Hōlualoa, Hawaii, United States11-07 15:49
  21. 1.962 km SW of Hawaiian Paradise Park, United States11-08 22:04
  22. 1.970 km SW of Hawaiian Paradise Park, United States11-09 05:01
  23. 1.967 km SE of Hōlualoa, Hawaii, United States11-12 08:44
  24. 1.957 km SW of Hawaiian Paradise Park, United States11-07 22:25
  25. 1.967 km SE of Hōlualoa, Hawaii, United States11-13 01:10

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Reports on SeismoAtlas

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Event id hv75067151. First recorded here 1 Nov 2026, 06:44:47 UTC. Solutions: USGS · HV (usgs:hv75067151). Cite as: SeismoAtlas, “M1.9 earthquake 68 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75067151-m1-9-earthquake-68-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75067151. SeismoAtlas is not an official warning service.