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M3.4 earthquake 71 km SW of Hawaiian Paradise Park, United States

A magnitude 3.4 earthquake struck 71 km SW of Hawaiian Paradise Park, United States at 12:39 local time (22:39 UTC) on 3 Sept 2026, at a depth of 32 km, according to USGS.

Data: USGS · updated 2026-09-22 00:18 UTC · reviewed

Magnitude
3.4minor
local magnitude (Richter) (ml)
Depth
31.9 km
Status
Reviewed
Origin time
2026-09-03 22:39:02 UTC
Local: 3 Sept 2026, 12:39:02 (Pacific/Honolulu)
Epicentre
19.066° N, 155.359° 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 Survey3.4 ml31.9 km19.07° N, 155.36° W–Reviewed

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How big was it?

Often felt by people at rest close to the epicentre, rarely causes damage.

It released roughly the energy of 2 t 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.

M3.4 releases about 33× the energy of M2.4, and its waves are about 10× taller on a seismogram. Energy: 2 t of TNT vs 60 kg of TNT.

Each square is the energy of one M2.4. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

86 later earthquakes within 30 km; the largest was M4.1 10 days ago. 6 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M3.4

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
13.693.512
16.373.333
106.422.530
138.732.632
185.322.631
235.364.013
235.702.611
276.122.632
343.964.112
346.792.510
348.683.014
364.832.814
376.772.612
423.452.631
427.851.830
428.322.631
435.001.831
435.511.933
437.201.728
442.451.228
443.721.839
446.541.729
451.702.131
451.982.032
452.861.928
455.661.930
463.521.928
466.701.811
467.941.928
468.002.031
470.812.610
471.721.810
474.191.629
474.291.726
474.312.033
474.781.728
474.941.829
474.951.728
477.001.830
479.161.632
480.221.928
480.471.932
481.612.232
482.081.630
484.042.133
484.191.830
487.101.533
490.151.836
495.711.838
496.871.831
500.812.129
503.892.05
503.971.731
504.321.232
507.551.830
510.211.927
511.411.830
514.321.935
514.781.730
515.122.228
516.571.612
532.711.831
535.912.328
544.781.930
546.672.430
549.032.136
549.052.632
553.932.031
563.011.930
574.011.928
577.711.729
579.712.129
584.971.727
587.692.132
587.961.732
588.942.835
588.992.133
589.302.433
589.721.830
589.882.134
590.102.333
590.251.732
590.802.333
599.642.332
600.761.833
600.812.037
  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. 3.370 km SE of Hōlualoa, Hawaii, United States09-04 15:01
  5. 3.070 km SE of Hōlualoa, Hawaii, United States09-18 11:19
  6. 2.870 km SE of Hōlualoa, Hawaii, United States09-19 03:28
  7. 2.869 km SE of Hōlualoa, Hawaii, United States09-28 11:35
  8. 2.670 km SE of Hōlualoa, Hawaii, United States09-13 18:20
  9. 2.674 km SW of Hawaiian Paradise Park, United States09-09 17:23
  10. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 14:06
  11. 2.667 km SE of Hōlualoa, Hawaii, United States09-15 10:46
  12. 2.652 km SW of Hawaiian Paradise Park, United States09-26 19:41
  13. 2.661 km SW of Hawaiian Paradise Park, United States09-11 15:58
  14. 2.671 km SE of Hōlualoa, Hawaii, United States09-19 15:24
  15. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 18:58
  16. 2.671 km SE of Hōlualoa, Hawaii, United States09-23 13:27
  17. 2.570 km SE of Hōlualoa, Hawaii, United States09-18 09:26
  18. 2.566 km SE of Hōlualoa, Hawaii, United States09-08 09:04
  19. 2.471 km SE of Hōlualoa, Hawaii, United States09-28 11:57
  20. 2.457 km SW of Hawaiian Paradise Park, United States09-26 17:19
  21. 2.368 km SW of Hawaiian Paradise Park, United States09-28 22:17
  22. 2.369 km SE of Hōlualoa, Hawaii, United States09-26 06:33
  23. 2.371 km SE of Hōlualoa, Hawaii, United States09-28 12:45
  24. 2.371 km SE of Hōlualoa, Hawaii, United States09-28 13:27
  25. 2.249 km SW of Hawaiian Paradise Park, United States09-25 09:46

Did you feel it?

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Reports on SeismoAtlas

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Event id hv75028917. First recorded here 28 Sept 2026, 17:32:13 UTC. Solutions: USGS · HV (usgs:hv75028917). Cite as: SeismoAtlas, “M3.4 earthquake 71 km SW of Hawaiian Paradise Park, United States”, https://seismoatlas.com/earthquake/hv75028917-m3-4-earthquake-71-km-sw-of-hawaiian-paradise-park-united-states, data from USGS.

JSON: /api/v1/events/hv75028917. SeismoAtlas is not an official warning service.