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M1.8 earthquake 37 km SW of Hawaiian Paradise Park, United States

A magnitude 1.8 earthquake struck 37 km SW of Hawaiian Paradise Park, United States at 09:48 local time (19:48 UTC) on 23 Oct 2026, at a depth of 1 km, according to USGS. The solution is preliminary and may be revised.

Data: USGS · updated 2026-10-23 19:52 UTC · automatic solution

Magnitude
1.8micro
duration magnitude (md)
Depth
0.8 km
Status
Automatic
Origin time
2026-10-23 19:48:50 UTC
Local: 23 Oct 2026, 09:48:50 (Pacific/Honolulu)
Epicentre
19.329° N, 155.193° 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. 11,40437 kmINot felt
HiloHawaii, United States · pop. 43,26346 kmINot felt
HonoluluHawaii, United States · pop. 350,964355 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.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · HVheadlineHawaiian Volcano Observatory via U.S. Geological Survey1.8 md0.8 km19.33° N, 155.19° W–Automatic

How big was it?

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

It released roughly the energy of 8 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 1 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 16× the energy of M1.0, and its waves are about 6.5× taller on a seismogram. Energy: 8 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

80 later earthquakes within 30 km; the largest was M2.6 3 days ago. 46 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
1.971.9-1
2.811.82
3.141.838
13.751.4-1
21.331.838
31.501.76
34.251.847
45.921.228
46.081.937
51.881.740
52.612.11
52.981.9-1
53.471.931
65.441.840
70.921.835
72.971.828
77.871.841
85.261.939
97.241.325
100.111.230
117.691.828
120.721.47
128.642.026
131.401.929
140.721.41
140.722.01
149.481.930
152.111.84
153.051.91
165.431.90
168.131.928
181.521.79
183.071.829
183.271.430
186.871.92
195.691.72
195.702.22
199.191.846
199.202.052
201.191.836
214.141.827
217.201.829
220.081.67
231.472.02
233.011.829
234.421.726
244.731.927
261.011.731
272.891.931
273.512.02
277.321.329
281.572.02
304.611.76
306.291.830
313.992.51
323.741.529
330.052.028
341.611.928
345.912.338
353.511.930
354.271.93
358.741.929
361.261.329
362.611.930
362.871.928
364.072.18
369.761.842
386.261.932
393.561.811
414.022.629
417.221.732
429.331.732
446.041.727
457.341.93
460.571.929
474.332.036
477.831.928
478.962.129
484.411.74
485.282.58
  1. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  2. 2.540 km SW of Hawaiian Paradise Park, United States11-05 21:48
  3. 2.553 km SW of Hilo, Hawaii, United States11-13 01:05
  4. 2.346 km SSW of Hawaiian Paradise Park, United States11-07 05:43
  5. 2.239 km SW of Hawaiian Paradise Park, United States10-31 23:31
  6. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  7. 2.152 km WSW of Hawaiian Paradise Park, United States11-07 23:53
  8. 2.137 km SW of Hawaiian Paradise Park, United States10-26 00:25
  9. 2.040 km SW of Hawaiian Paradise Park, United States10-29 16:32
  10. 2.034 km SSW of Hawaiian Paradise Park, United States11-04 13:22
  11. 2.058 km SW of Hawaiian Paradise Park, United States11-06 13:51
  12. 2.039 km SW of Hawaiian Paradise Park, United States11-02 11:16
  13. 2.019 km SW of Hawaiian Paradise Park, United States11-12 14:08
  14. 2.062 km SW of Hawaiian Paradise Park, United States10-29 04:27
  15. 2.056 km SSW of Hawaiian Paradise Park, United States11-01 03:00
  16. 2.040 km SW of Hawaiian Paradise Park, United States11-04 05:19
  17. 1.937 km SW of Hawaiian Paradise Park, United States10-26 00:47
  18. 1.964 km SW of Hawaiian Paradise Park, United States11-12 17:38
  19. 1.962 km SW of Hawaiian Paradise Park, United States11-08 22:04
  20. 1.939 km SW of Hawaiian Paradise Park, United States10-31 14:40
  21. 1.954 km SW of Hawaiian Paradise Park, United States10-26 01:17
  22. 1.957 km SW of Hawaiian Paradise Park, United States11-07 22:25
  23. 1.958 km SW of Hawaiian Paradise Park, United States10-30 01:17
  24. 1.943 km SW of Hawaiian Paradise Park, United States10-30 04:51
  25. 1.967 km SW of Hawaiian Paradise Park, United States11-07 22:41

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 hv75062961. First recorded here 23 Oct 2026, 19:53:23 UTC. Solutions: USGS · HV (usgs:hv75062961). Cite as: SeismoAtlas, “M1.8 earthquake 37 km SW of Hawaiian Paradise Park, United States”, https://seismoatlas.com/earthquake/hv75062961-m1-8-earthquake-37-km-sw-of-hawaiian-paradise-park-united-states, data from USGS.

JSON: /api/v1/events/hv75062961. SeismoAtlas is not an official warning service.