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M1.7 earthquake 56 km ESE of Hōlualoa, Hawaii, United States

A magnitude 1.7 earthquake struck 56 km ESE of Hōlualoa, Hawaii, United States at 06:58 local time (16:58 UTC) on 31 Oct 2026, at a depth of 1 km, according to USGS. The solution is preliminary and may be revised.

Data: USGS · updated 2026-10-31 17:01 UTC · automatic solution

Magnitude
1.7micro
duration magnitude (md)
Depth
0.7 km
Status
Automatic
Origin time
2026-10-31 16:58:02 UTC
Local: 31 Oct 2026, 06:58:02 (Pacific/Honolulu)
Epicentre
19.358° N, 155.497° 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. 8,53856 kmINot felt
HiloHawaii, United States · pop. 43,26359 kmINot felt
HonoluluHawaii, United States · pop. 350,964328 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. Likely felt out to about 4 km.

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 Survey1.7 md0.7 km19.36° N, 155.50° W–Automatic

How big was it?

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

It released roughly the energy of 6 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 1 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.7 releases about 12× the energy of M1.0, and its waves are about 5.1× taller on a seismogram. Energy: 6 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

98 later earthquakes within 30 km; the largest was M3.1 8 days ago. 62 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.7

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
6.541.72
6.552.22
13.701.930
15.802.432
16.101.728
16.651.828
22.611.913
24.991.827
25.341.829
27.570.83
28.041.829
30.931.67
32.031.331
42.312.02
43.861.829
45.261.726
46.701.831
46.731.732
55.581.927
58.921.726
68.571.829
71.861.731
75.871.97
83.431.729
83.741.931
84.362.02
85.142.440
88.171.329
94.231.828
101.033.1-2
101.451.8-2
105.702.132
107.491.933
107.661.829
111.611.77
115.451.76
117.141.830
123.071.739
124.842.51
125.071.732
134.591.529
134.711.830
140.532.441
140.531.923
140.902.028
146.571.729
148.371.60
152.461.928
158.621.830
164.361.930
165.121.93
165.751.950
166.851.928
167.331.730
169.581.929
172.111.329
173.461.930
173.721.928
174.922.18
176.541.933
184.282.50
187.691.911
192.581.929
197.101.932
204.051.736
204.051.935
204.062.344
204.642.612
204.831.713
210.692.531
210.742.231
219.751.929
224.862.629
226.331.929
228.061.732
230.041.930
235.091.736
235.521.829
235.901.931
240.171.732
240.751.829
244.101.827
244.211.930
254.421.530
256.101.727
256.881.727
268.181.93
271.421.929
275.551.731
279.771.931
287.151.828
288.681.928
288.981.736
289.802.129
290.322.231
291.891.729
296.122.58
296.211.930
  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. 2.547 km SW of Hilo, Hawaii, United States11-08 09:14
  5. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  6. 2.540 km SW of Hawaiian Paradise Park, United States11-05 21:48
  7. 2.553 km SW of Hilo, Hawaii, United States11-13 01:05
  8. 2.442 km ESE of Hōlualoa, Hawaii, United States11-04 06:06
  9. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  10. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  11. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  12. 2.267 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  13. 2.239 km SW of Hawaiian Paradise Park, United States10-31 23:31
  14. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  15. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  16. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  17. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  18. 2.058 km SW of Hawaiian Paradise Park, United States11-06 13:51
  19. 2.039 km SW of Hawaiian Paradise Park, United States11-02 11:16
  20. 2.040 km SW of Hawaiian Paradise Park, United States11-04 05:19
  21. 1.964 km SW of Hawaiian Paradise Park, United States11-12 17:38
  22. 1.951 km ESE of Hōlualoa, Hawaii, United States11-03 20:50
  23. 1.941 km ESE of Hōlualoa, Hawaii, United States11-07 14:43
  24. 1.967 km SE of Hōlualoa, Hawaii, United States11-07 15:49
  25. 1.962 km SW of Hawaiian Paradise Park, United States11-08 22:04

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Reports on SeismoAtlas

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Event id hv75066866. First recorded here 31 Oct 2026, 17:02:11 UTC. Solutions: USGS · HV (usgs:hv75066866). Cite as: SeismoAtlas, “M1.7 earthquake 56 km ESE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75066866-m1-7-earthquake-56-km-ese-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75066866. SeismoAtlas is not an official warning service.