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M1.8 earthquake 76 km SSW of Hawaiian Paradise Park, United States

A magnitude 1.8 earthquake struck 76 km SSW of Hawaiian Paradise Park, United States at 05:08 local time (15:08 UTC) on 28 Oct 2026, at a depth of 28 km, according to USGS. The solution is preliminary and may be revised.

Data: USGS · updated 2026-10-28 15:12 UTC · automatic solution

Magnitude
1.8micro
duration magnitude (md)
Depth
27.6 km
Status
Automatic
Origin time
2026-10-28 15:08:50 UTC
Local: 28 Oct 2026, 05:08:50 (Pacific/Honolulu)
Epicentre
19.008° N, 155.344° 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. 11,40476 kmINot felt
HiloHawaii, United States · pop. 43,26385 kmINot felt
HonoluluHawaii, United States · pop. 350,964367 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 Survey1.8 md27.6 km19.01° N, 155.34° W–Automatic

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 28 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 14× the energy of M1.0, and its waves are about 5.8× 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

113 later earthquakes within 30 km; the largest was M2.7 13 days ago. 49 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.861.829
13.251.832
13.302.026
14.291.831
16.071.929
24.282.232
26.031.830
34.141.930
37.722.733
48.201.830
48.991.930
49.452.444
49.661.832
51.571.838
52.801.928
52.881.332
54.441.730
56.991.832
58.322.132
61.821.830
64.891.931
64.912.00
66.181.79
66.231.930
67.691.932
67.741.829
68.031.934
68.691.636
68.732.130
83.861.846
83.862.052
87.391.932
87.521.930
89.622.432
89.931.728
90.471.828
96.431.913
98.811.827
99.161.829
101.861.829
105.851.331
117.681.829
120.521.831
120.551.732
129.401.927
132.741.726
142.391.829
145.681.731
157.251.729
157.561.931
161.991.329
168.051.828
170.462.036
179.522.132
181.311.933
181.481.829
188.211.731
196.891.739
198.891.732
208.411.529
208.531.830
209.071.733
214.722.028
220.391.729
232.441.830
237.891.917
238.181.930
240.671.928
241.151.730
243.401.929
247.541.928
250.361.933
254.421.842
261.511.911
262.101.937
265.711.831
266.401.929
268.622.435
270.921.932
277.871.736
277.871.935
277.882.344
278.152.040
278.462.612
278.651.713
284.512.531
284.562.231
284.621.834
293.571.929
298.682.629
300.151.929
303.861.930
307.772.131
308.911.736
309.341.829
309.721.931
313.991.732
314.571.829
317.921.827
318.031.930
328.241.530
329.921.727
330.701.727
349.371.731
353.591.931
357.692.628
360.971.828
362.501.928
362.801.736
363.632.129
364.142.231
365.711.729
370.031.930
  1. 2.771 km SW of Hawaiian Paradise Park, United States10-30 04:52
  2. 2.691 km SSW of Hawaiian Paradise Park, United States11-12 12:50
  3. 2.672 km SE of Hōlualoa, Hawaii, United States11-09 05:36
  4. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  5. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  6. 2.498 km SSE of Hōlualoa, Hawaii, United States11-08 19:46
  7. 2.487 km SSW of Hawaiian Paradise Park, United States10-30 16:35
  8. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  9. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  10. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  11. 2.267 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  12. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  13. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  14. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  15. 2.174 km SW of Hawaiian Paradise Park, United States11-10 10:55
  16. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  17. 2.175 km SW of Hawaiian Paradise Park, United States10-31 11:52
  18. 2.095 km SSE of Hōlualoa, Hawaii, United States11-04 17:36
  19. 2.067 km SW of Hawaiian Paradise Park, United States10-31 08:03
  20. 2.058 km SW of Hawaiian Paradise Park, United States11-06 13:51
  21. 2.072 km SW of Hawaiian Paradise Park, United States11-09 05:17
  22. 2.062 km SW of Hawaiian Paradise Park, United States10-29 04:27
  23. 2.056 km SSW of Hawaiian Paradise Park, United States11-01 03:00
  24. 1.964 km SW of Hawaiian Paradise Park, United States11-12 17:38
  25. 1.975 km SW of Hawaiian Paradise Park, United States10-31 10:49

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 hv75064976. First recorded here 28 Oct 2026, 15:13:04 UTC. Solutions: USGS · HV (usgs:hv75064976). Cite as: SeismoAtlas, “M1.8 earthquake 76 km SSW of Hawaiian Paradise Park, United States”, https://seismoatlas.com/earthquake/hv75064976-m1-8-earthquake-76-km-ssw-of-hawaiian-paradise-park-united-states, data from USGS.

JSON: /api/v1/events/hv75064976. SeismoAtlas is not an official warning service.