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SeismoAtlas

M2.3 earthquake 42 km ESE of Hōlualoa, Hawaii, United States

A magnitude 2.3 earthquake struck 42 km ESE of Hōlualoa, Hawaii, United States at 00:34 local time (10:34 UTC) on 25 Oct 2026, at a depth of 39 km, according to USGS.

revised from M2.8

Data: USGS · updated 2026-10-26 19:55 UTC · reviewed

Magnitude
2.3micro
local magnitude (Richter) (ml)
revised from 2.8
Depth
39.4 km
Status
Reviewed
Origin time
2026-10-25 10:34:59 UTC
Local: 25 Oct 2026, 00:34:59 (Pacific/Honolulu)
Epicentre
19.430° N, 155.604° 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. 8,53842 kmINot felt
Kailua-KonaHawaii, United States · pop. 11,97548 kmINot felt
HiloHawaii, United States · pop. 43,26363 kmINot felt
HonoluluHawaii, United States · pop. 350,964315 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 Survey2.3 mlwas 2.839.4 km19.43° N, 155.60° 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 49 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 39 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M2.3 releases about 36× the energy of M1.3, and its waves are about 11× taller on a seismogram. Energy: 49 kg of TNT vs 1 kg of TNT.

Each square is the energy of one M1.3. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

65 later earthquakes within 30 km; the largest was M3.1 8 days ago. 34 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.3

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
8.201.830
14.701.931
16.511.731
36.251.829
49.402.49
56.252.530
60.712.60
74.261.233
78.921.828
82.481.78
100.852.232
133.551.832
134.882.132
141.472.00
144.501.430
147.751.62
147.791.92
148.031.72
150.381.71
164.091.930
166.192.432
177.960.83
181.311.67
182.411.331
200.152.122
226.251.97
232.121.112
235.522.440
238.551.329
251.423.1-2
251.841.8-2
262.001.77
265.841.76
267.521.830
275.461.732
285.091.830
288.232.473
290.912.441
290.911.923
298.751.60
302.841.928
303.752.117
314.751.930
315.501.93
316.141.950
317.241.928
317.721.730
322.491.329
323.841.930
325.302.18
334.672.50
340.972.415
361.072.531
361.132.231
380.421.930
390.561.732
391.131.829
394.491.827
394.601.930
404.801.530
405.971.70
421.801.929
430.161.931
439.061.928
440.702.629
  1. 3.143 km SE of Hōlualoa, Hawaii, United States11-04 21:59
  2. 2.667 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  3. 2.646 km WSW of Hilo, Hawaii, United States10-27 23:17
  4. 2.566 km SE of Hōlualoa, Hawaii, United States10-27 18:50
  5. 2.547 km SW of Hilo, Hawaii, United States11-08 09:14
  6. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  7. 2.442 km ESE of Hōlualoa, Hawaii, United States11-04 06:06
  8. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  9. 2.435 km SSE of Hōlualoa, Hawaii, United States11-08 15:33
  10. 2.429 km SSE of Hōlualoa, Hawaii, United States11-06 10:48
  11. 2.439 km ESE of Hōlualoa, Hawaii, United States10-27 11:58
  12. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  13. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  14. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  15. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  16. 2.117 km SE of Hōlualoa, Hawaii, United States11-02 18:44
  17. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  18. 2.128 km SSE of Hōlualoa, Hawaii, United States11-07 02:20
  19. 2.067 km SW of Hawaiian Paradise Park, United States10-31 08:03
  20. 1.964 km SW of Hawaiian Paradise Park, United States11-12 17:38
  21. 1.951 km ESE of Hōlualoa, Hawaii, United States11-03 20:50
  22. 1.941 km ESE of Hōlualoa, Hawaii, United States11-07 14:43
  23. 1.967 km SE of Hōlualoa, Hawaii, United States11-07 15:49
  24. 1.967 km SE of Hōlualoa, Hawaii, United States11-12 08:44
  25. 1.954 km SW of Hawaiian Paradise Park, United States10-26 01:17

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

Reports close 14 days after an earthquake.

Reports on SeismoAtlas

No reports yet.

Event id us6000u4tr. First recorded here 25 Oct 2026, 10:54:46 UTC. Solutions: USGS · HV (usgs:hv75063541). Cite as: SeismoAtlas, “M2.3 earthquake 42 km ESE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/us6000u4tr-m2-3-earthquake-42-km-ese-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/us6000u4tr. SeismoAtlas is not an official warning service.