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M1.8 earthquake 58 km WSW of Hawaiian Paradise Park, United States

A magnitude 1.8 earthquake struck 58 km WSW of Hawaiian Paradise Park, United States at 04:49 local time (14:49 UTC) on 23 Oct 2026, at a depth of 29 km, according to USGS.

revised from M2.1

Data: USGS · updated 2026-10-24 02:14 UTC · reviewed

Magnitude
1.8micro
local magnitude (Richter) (ml)
revised from 2.1
Depth
29 km
Status
Reviewed
Origin time
2026-10-23 14:49:18 UTC
Local: 23 Oct 2026, 04:49:18 (Pacific/Honolulu)
Epicentre
19.308° N, 155.436° 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
Hawaiian Paradise ParkHawaii, United States · pop. 11,40458 kmINot felt
HiloHawaii, United States · pop. 43,26359 kmINot felt
HonoluluHawaii, United States · pop. 350,964337 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 Survey1.8 mlwas 2.129 km19.31° N, 155.44° 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 7 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.

M1.8 releases about 15× the energy of M1.0, and its waves are about 6× taller on a seismogram. Energy: 7 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

185 later earthquakes within 30 km; the largest was M3.3 20 days ago. 75 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
1.053.329
2.612.032
2.911.631
3.011.130
4.961.428
4.991.81
6.961.9-1
7.801.82
8.471.830
12.641.86
12.671.97
15.072.3-1
17.621.949
18.741.4-1
33.271.936
33.391.940
34.551.99
35.372.133
36.211.928
39.241.847
39.482.132
43.762.339
50.921.228
51.961.830
56.871.740
57.602.11
57.981.9-1
58.471.931
60.271.731
62.461.832
70.722.129
77.961.828
80.021.829
83.621.830
84.951.831
92.791.732
93.162.49
96.692.133
97.601.931
100.012.530
102.241.325
102.971.733
104.472.60
105.101.230
112.241.729
112.241.833
118.031.233
121.181.829
122.681.828
126.241.78
133.632.026
134.611.831
136.401.929
144.612.232
145.712.01
154.471.930
158.041.91
158.052.733
168.521.830
169.321.930
169.981.832
171.901.838
173.131.928
173.211.332
174.771.730
177.311.832
178.652.132
182.151.830
185.221.931
185.232.00
186.511.79
186.561.930
188.071.829
188.261.430
188.361.934
189.011.636
191.511.62
191.551.92
191.801.72
191.861.92
194.151.71
200.691.72
200.702.22
204.181.846
204.192.052
207.851.930
209.952.432
210.251.728
210.801.828
216.761.913
219.131.827
219.491.829
221.720.83
222.191.829
225.071.67
226.171.331
236.462.02
238.001.829
239.411.726
240.851.831
240.881.732
249.731.927
253.061.726
262.721.829
266.001.731
270.021.97
277.571.729
277.891.931
278.502.02
279.282.440
282.311.329
288.381.828
295.183.1-2
295.601.8-2
299.852.132
301.631.933
301.801.829
305.761.77
308.541.731
309.601.76
311.291.830
317.221.739
318.982.51
319.221.732
328.731.529
328.851.830
334.672.441
334.681.923
335.042.028
340.711.729
342.511.60
346.601.928
352.761.830
358.511.930
359.261.93
359.901.950
361.001.928
361.481.730
363.731.929
366.261.329
367.601.930
367.871.928
369.062.18
370.681.933
374.751.842
378.432.50
381.831.911
386.721.929
391.251.932
398.191.736
398.201.935
398.212.344
398.482.040
398.782.612
398.981.713
404.832.531
404.892.231
413.891.929
419.012.629
420.481.929
422.211.732
424.181.930
428.102.131
429.231.736
429.661.829
430.051.931
434.321.732
434.891.829
438.251.827
438.361.930
448.561.530
450.241.727
451.031.727
462.331.93
465.561.929
469.691.731
473.921.931
481.291.828
482.821.928
483.131.736
483.952.129
484.462.231
486.031.729
490.272.58
490.361.930
  1. 3.369 km SE of Hōlualoa, Hawaii, United States10-23 15:52
  2. 3.143 km SE of Hōlualoa, Hawaii, United States11-04 21:59
  3. 2.771 km SW of Hawaiian Paradise Park, United States10-30 04:52
  4. 2.646 km WSW of Hilo, Hawaii, United States10-27 23:17
  5. 2.672 km SE of Hōlualoa, Hawaii, United States11-09 05:36
  6. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  7. 2.566 km SE of Hōlualoa, Hawaii, United States10-27 18:50
  8. 2.547 km SW of Hilo, Hawaii, United States11-08 09:14
  9. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  10. 2.540 km SW of Hawaiian Paradise Park, United States11-05 21:48
  11. 2.553 km SW of Hilo, Hawaii, United States11-13 01:05
  12. 2.442 km ESE of Hōlualoa, Hawaii, United States11-04 06:06
  13. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  14. 2.439 km ESE of Hōlualoa, Hawaii, United States10-27 11:58
  15. 2.443 km ESE of Hōlualoa, Hawaii, United States11-06 13:29
  16. 2.342 km ESE of Hōlualoa, Hawaii, United States10-25 10:34
  17. 2.348 km WSW of Hilo, Hawaii, United States10-24 05:53
  18. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  19. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  20. 2.267 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  21. 2.239 km SW of Hawaiian Paradise Park, United States10-31 23:31
  22. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  23. 2.168 km SE of Hōlualoa, Hawaii, United States10-27 15:30
  24. 2.169 km SE of Hōlualoa, Hawaii, United States10-25 02:11
  25. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28

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Event id hv75062756. First recorded here 23 Oct 2026, 14:53:19 UTC. Solutions: USGS · HV (usgs:hv75062756). Cite as: SeismoAtlas, “M1.8 earthquake 58 km WSW of Hawaiian Paradise Park, United States”, https://seismoatlas.com/earthquake/hv75062756-m1-8-earthquake-58-km-wsw-of-hawaiian-paradise-park-united-states, data from USGS.

JSON: /api/v1/events/hv75062756. SeismoAtlas is not an official warning service.