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M2.8 earthquake 71 km SW of Hawaiian Paradise Park, United States

A magnitude 2.8 earthquake struck 71 km SW of Hawaiian Paradise Park, United States at 11:18 local time (21:18 UTC) on 30 Aug 2026, at a depth of 32 km, according to USGS.

Data: USGS · updated 2026-09-06 20:41 UTC · reviewed

Magnitude
2.8micro
local magnitude (Richter) (ml)
Depth
31.8 km
Status
Reviewed
Origin time
2026-08-30 21:18:37 UTC
Local: 30 Aug 2026, 11:18:37 (Pacific/Honolulu)
Epicentre
19.066° N, 155.358° 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. 11,40471 kmINot felt
HiloHawaii, United States · pop. 43,26379 kmINot felt
HonoluluHawaii, United States · pop. 350,964361 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 Survey2.8 ml31.8 km19.07° N, 155.36° W–Reviewed

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How big was it?

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

It released roughly the energy of 223 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 32 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M2.8 releases about 30× the energy of M1.8, and its waves are about 9.5× taller on a seismogram. Energy: 223 kg of TNT vs 8 kg of TNT.

Each square is the energy of one M1.8. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

91 later earthquakes within 30 km; the largest was M4.1 10 days ago. 1 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
44.182.632
81.073.030
81.412.831
88.232.632
97.343.432
111.033.512
113.713.333
203.762.530
236.082.632
282.662.631
332.704.013
333.042.611
373.462.632
441.304.112
444.132.510
446.023.014
462.172.814
474.112.612
520.792.631
525.191.830
525.662.631
532.341.831
532.851.933
534.541.728
539.791.228
541.061.839
543.881.729
549.042.131
549.322.032
550.201.928
553.001.930
560.861.928
564.041.811
565.281.928
565.342.031
568.152.610
569.061.810
571.531.629
571.631.726
571.652.033
572.121.728
572.281.829
572.291.728
574.341.830
576.501.632
577.561.928
577.811.932
578.952.232
579.421.630
581.382.133
581.531.830
584.441.533
587.491.836
593.051.838
594.211.831
598.152.129
601.232.05
601.311.731
601.661.232
604.891.830
607.551.927
608.751.830
611.661.935
612.121.730
612.462.228
613.911.612
630.051.831
633.252.328
642.121.930
644.012.430
646.372.136
646.392.632
651.272.031
660.351.930
671.361.928
675.051.729
677.052.129
682.321.727
685.032.132
685.301.732
686.282.835
686.332.133
686.642.433
687.061.830
687.222.134
687.442.333
687.591.732
688.142.333
696.982.332
698.101.833
698.152.037
  1. 4.171 km SE of Hōlualoa, Hawaii, United States09-18 06:36
  2. 4.071 km SE of Hōlualoa, Hawaii, United States09-13 18:00
  3. 3.571 km SE of Hōlualoa, Hawaii, United States09-04 12:20
  4. 3.471 km SW of Hawaiian Paradise Park, United States09-03 22:39
  5. 3.370 km SE of Hōlualoa, Hawaii, United States09-04 15:01
  6. 3.067 km SE of Hōlualoa, Hawaii, United States09-03 06:22
  7. 3.070 km SE of Hōlualoa, Hawaii, United States09-18 11:19
  8. 2.870 km SE of Hōlualoa, Hawaii, United States09-19 03:28
  9. 2.868 km SE of Hōlualoa, Hawaii, United States09-03 06:42
  10. 2.869 km SE of Hōlualoa, Hawaii, United States09-28 11:35
  11. 2.670 km SE of Hōlualoa, Hawaii, United States09-13 18:20
  12. 2.674 km SW of Hawaiian Paradise Park, United States09-09 17:23
  13. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 14:06
  14. 2.667 km SE of Hōlualoa, Hawaii, United States09-01 17:29
  15. 2.671 km SW of Hawaiian Paradise Park, United States09-03 13:32
  16. 2.667 km SE of Hōlualoa, Hawaii, United States09-15 10:46
  17. 2.652 km SW of Hawaiian Paradise Park, United States09-26 19:41
  18. 2.661 km SW of Hawaiian Paradise Park, United States09-11 15:58
  19. 2.671 km SE of Hōlualoa, Hawaii, United States09-19 15:24
  20. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 18:58
  21. 2.671 km SE of Hōlualoa, Hawaii, United States09-23 13:27
  22. 2.570 km SE of Hōlualoa, Hawaii, United States09-18 09:26
  23. 2.566 km SE of Hōlualoa, Hawaii, United States09-08 09:04
  24. 2.471 km SE of Hōlualoa, Hawaii, United States09-28 11:57
  25. 2.457 km SW of Hawaiian Paradise Park, United States09-26 17:19

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Reports on SeismoAtlas

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Event id hv75026967. First recorded here 28 Sept 2026, 17:32:14 UTC. Solutions: USGS · HV (usgs:hv75026967). Cite as: SeismoAtlas, “M2.8 earthquake 71 km SW of Hawaiian Paradise Park, United States”, https://seismoatlas.com/earthquake/hv75026967-m2-8-earthquake-71-km-sw-of-hawaiian-paradise-park-united-states, data from USGS.

JSON: /api/v1/events/hv75026967. SeismoAtlas is not an official warning service.