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M2.8 earthquake 75 km SW of Hawaiian Paradise Park, United States

A magnitude 2.8 earthquake struck 75 km SW of Hawaiian Paradise Park, United States at 06:31 local time (16:31 UTC) on 20 Oct 2026, at a depth of 34 km, according to USGS.

revised from M3.1 · 1 reports to USGS “Did You Feel It?”

Data: USGS · updated 2026-10-20 18:31 UTC · reviewed

Magnitude
2.8micro
local magnitude (Richter) (ml)
revised from 3.1
Depth
34.4 km
Status
Reviewed
Origin time
2026-10-20 16:31:23 UTC
Local: 20 Oct 2026, 06:31:23 (Pacific/Honolulu)
Epicentre
19.059° N, 155.408° 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. 11,40475 kmINot felt
HiloHawaii, United States · pop. 43,26382 kmINot felt
HonoluluHawaii, United States · pop. 350,964358 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 mlwas 3.134.4 km19.06° N, 155.41° W–Reviewed · 1 revision

How big was it?

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

It released roughly the energy of 247 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 34 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 33× the energy of M1.8, and its waves are about 10× taller on a seismogram. Energy: 247 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

176 later earthquakes within 30 km; the largest was M3.3 20 days ago. 55 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
11.811.730
21.651.234
28.411.929
41.051.632
41.101.829
41.652.132
42.181.829
44.711.933
44.941.935
45.301.935
45.491.835
48.441.735
49.781.733
53.741.830
59.991.75
61.201.840
63.301.831
68.392.030
69.752.229
70.301.829
71.353.329
72.912.032
75.261.428
77.261.9-1
78.771.830
82.941.86
82.961.97
87.921.949
103.571.936
103.691.940
104.841.99
105.672.133
106.511.928
109.541.847
109.782.132
121.221.228
122.261.830
127.171.740
128.761.931
130.571.731
132.761.832
141.022.129
148.261.828
150.311.829
153.921.830
155.251.831
163.091.732
166.982.133
167.901.931
169.481.731
170.312.530
173.271.733
175.401.230
182.541.729
182.541.833
187.521.817
188.321.233
190.621.828
191.481.829
203.871.832
203.932.026
204.911.831
206.691.929
214.912.232
216.651.830
224.771.930
228.352.733
238.821.830
239.621.930
240.281.832
242.191.838
243.421.928
243.511.332
245.071.730
247.611.832
248.942.132
252.451.830
255.511.931
255.532.00
256.811.79
256.861.930
258.311.932
258.371.829
258.561.430
258.651.934
259.311.636
259.352.130
274.481.846
274.492.052
278.011.932
278.151.930
280.252.432
280.551.728
281.101.828
287.061.913
289.431.827
289.781.829
292.491.829
296.471.331
308.301.829
311.141.831
311.181.732
320.021.927
323.361.726
333.021.829
336.301.731
347.871.729
348.181.931
352.611.329
358.671.828
361.092.036
370.152.132
371.931.933
372.101.829
378.841.731
381.581.830
387.521.739
389.521.732
399.031.529
399.151.830
399.691.733
405.342.028
411.011.729
416.901.928
423.061.830
428.521.917
428.811.930
429.561.93
431.301.928
431.781.730
434.031.929
436.551.329
437.901.930
438.171.928
440.981.933
445.051.842
452.131.911
452.721.937
456.341.831
457.021.929
459.252.435
461.551.932
468.491.736
468.491.935
468.512.344
468.782.040
469.082.612
469.281.713
475.132.531
475.192.231
475.241.834
484.191.929
489.312.629
490.781.929
494.481.930
498.402.131
499.531.736
499.961.829
500.341.931
504.621.732
505.191.829
508.551.827
508.661.930
518.861.530
520.541.727
521.331.727
535.861.929
539.991.731
544.221.931
548.312.628
551.591.828
553.121.928
553.431.736
554.252.129
554.762.629
556.331.729
  1. 3.369 km SE of Hōlualoa, Hawaii, United States10-23 15:52
  2. 2.771 km SW of Hawaiian Paradise Park, United States10-30 04:52
  3. 2.667 km SE of Hōlualoa, Hawaii, United States11-12 19:17
  4. 2.691 km SSW of Hawaiian Paradise Park, United States11-12 12:50
  5. 2.672 km SE of Hōlualoa, Hawaii, United States11-09 05:36
  6. 2.661 km SW of Hawaiian Paradise Park, United States11-10 01:49
  7. 2.566 km SE of Hōlualoa, Hawaii, United States10-27 18:50
  8. 2.567 km SE of Hōlualoa, Hawaii, United States11-09 11:39
  9. 2.498 km SSE of Hōlualoa, Hawaii, United States11-08 19:46
  10. 2.468 km SE of Hōlualoa, Hawaii, United States11-01 08:46
  11. 2.368 km SE of Hōlualoa, Hawaii, United States11-09 05:01
  12. 2.270 km SE of Hōlualoa, Hawaii, United States10-23 14:16
  13. 2.268 km SE of Hōlualoa, Hawaii, United States10-29 15:25
  14. 2.267 km SE of Hōlualoa, Hawaii, United States11-09 11:42
  15. 2.168 km SE of Hōlualoa, Hawaii, United States10-27 15:30
  16. 2.169 km SE of Hōlualoa, Hawaii, United States10-25 02:11
  17. 2.167 km SE of Hōlualoa, Hawaii, United States10-31 01:28
  18. 2.158 km SW of Hawaiian Paradise Park, United States11-12 18:46
  19. 2.174 km SW of Hawaiian Paradise Park, United States11-10 10:55
  20. 2.168 km SE of Hōlualoa, Hawaii, United States10-26 13:32
  21. 2.170 km SW of Hawaiian Paradise Park, United States11-05 02:40
  22. 2.168 km SE of Hōlualoa, Hawaii, United States10-25 06:17
  23. 2.169 km SE of Hōlualoa, Hawaii, United States10-22 10:10
  24. 2.175 km SW of Hawaiian Paradise Park, United States10-31 11:52
  25. 2.070 km SE of Hōlualoa, Hawaii, United States10-23 12:54

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.

USGS “Did You Feel It?” has 1 reports: add yours at USGS.

Event id hv75061376. First recorded here 20 Oct 2026, 16:35:54 UTC. Solutions: USGS · HV (usgs:hv75061376). Cite as: SeismoAtlas, “M2.8 earthquake 75 km SW of Hawaiian Paradise Park, United States”, https://seismoatlas.com/earthquake/hv75061376-m2-8-earthquake-75-km-sw-of-hawaiian-paradise-park-united-states, data from USGS.

JSON: /api/v1/events/hv75061376. SeismoAtlas is not an official warning service.