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M1.9 earthquake 40 km SW of Hawaiian Paradise Park, United States

A magnitude 1.9 earthquake struck 40 km SW of Hawaiian Paradise Park, United States at 12:24 local time (22:24 UTC) on 25 Sept 2026, at a depth of 2 km, according to USGS.

Data: USGS · updated 2026-09-25 23:55 UTC · reviewed

Magnitude
1.9micro
local magnitude (Richter) (ml)
Depth
1.7 km
Status
Reviewed
Origin time
2026-09-25 22:24:21 UTC
Local: 25 Sept 2026, 12:24:21 (Pacific/Honolulu)
Epicentre
19.387° N, 155.281° 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. 11,40440 kmINot felt
HiloHawaii, United States · pop. 43,26343 kmINot felt
HonoluluHawaii, United States · pop. 350,964344 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. Likely felt out to about 5 km.

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 Survey1.9 ml1.7 km19.39° N, 155.28° 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 11 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 2 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.9 releases about 23× the energy of M1.0, and its waves are about 8.1× taller on a seismogram. Energy: 11 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

21 later earthquakes within 30 km; the largest was M3.1 1 day ago. 23 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.9

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
1.941.78
4.952.131
17.031.930
17.642.08
18.912.430
21.282.136
21.292.632
25.802.20
30.601.02
31.561.80
34.402.142
35.141.74
35.261.930
35.761.827
39.103.18
43.561.910
46.261.928
49.961.729
51.952.129
56.892.123
57.221.727
  1. 3.128 km SSW of Hawaiian Paradise Park, United States09-27 13:30
  2. 2.652 km SW of Hawaiian Paradise Park, United States09-26 19:41
  3. 2.457 km SW of Hawaiian Paradise Park, United States09-26 17:19
  4. 2.237 km SW of Hawaiian Paradise Park, United States09-27 00:12
  5. 2.121 km S of Hawaiian Paradise Park, United States09-27 08:48
  6. 2.116 km WSW of Hawaiian Paradise Park, United States09-28 07:17
  7. 2.164 km SW of Hawaiian Paradise Park, United States09-28 02:21
  8. 2.167 km SW of Hawaiian Paradise Park, United States09-26 03:21
  9. 2.166 km SE of Hōlualoa, Hawaii, United States09-26 19:41
  10. 2.057 km ESE of Hōlualoa, Hawaii, United States09-26 16:02
  11. 1.959 km ESE of Hōlualoa, Hawaii, United States09-27 17:58
  12. 1.965 km SE of Hōlualoa, Hawaii, United States09-26 15:25
  13. 1.957 km SW of Hawaiian Paradise Park, United States09-27 09:39
  14. 1.965 km SW of Hawaiian Paradise Park, United States09-27 20:39
  15. 1.855 km WSW of Hawaiian Paradise Park, United States09-27 10:09
  16. 1.837 km WSW of Hawaiian Paradise Park, United States09-27 05:58
  17. 1.736 km SW of Hawaiian Paradise Park, United States09-27 09:33
  18. 1.769 km SW of Hawaiian Paradise Park, United States09-28 00:21
  19. 1.767 km SE of Hōlualoa, Hawaii, United States09-28 07:37
  20. 1.725 km SSW of Hawaiian Paradise Park, United States09-26 00:20
  21. 1.039 km SW of Hawaiian Paradise Park, United States09-27 05:00

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Reports on SeismoAtlas

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Event id hv75043792. First recorded here 28 Sept 2026, 17:32:09 UTC. Solutions: USGS · HV (usgs:hv75043792). Cite as: SeismoAtlas, “M1.9 earthquake 40 km SW of Hawaiian Paradise Park, United States”, https://seismoatlas.com/earthquake/hv75043792-m1-9-earthquake-40-km-sw-of-hawaiian-paradise-park-united-states, data from USGS.

JSON: /api/v1/events/hv75043792. SeismoAtlas is not an official warning service.