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M3.0 earthquake 70 km SE of Hōlualoa, Hawaii, United States

A magnitude 3.0 earthquake struck 70 km SE of Hōlualoa, Hawaii, United States at 01:19 local time (11:19 UTC) on 18 Sept 2026, at a depth of 14 km, according to USGS.

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

Magnitude
3.0micro
local magnitude (Richter) (ml)
Depth
13.6 km
Status
Reviewed
Origin time
2026-09-18 11:19:52 UTC
Local: 18 Sept 2026, 01:19:52 (Pacific/Honolulu)
Epicentre
19.164° N, 155.484° 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
HōlualoaHawaii, United States · pop. 8,53870 kmINot felt
Hawaiian Paradise ParkHawaii, United States · pop. 11,40472 kmINot felt
HiloHawaii, United States · pop. 43,26375 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 6 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 Survey3.0 ml13.6 km19.16° N, 155.48° 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 401 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 14 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M3.0 releases about 27× the energy of M2.0, and its waves are about 8.9× taller on a seismogram. Energy: 401 kg of TNT vs 15 kg of TNT.

Each square is the energy of one M2.0. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

82 later earthquakes within 30 km; the largest was M2.8 9 days ago. 6 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M3.0

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
16.152.814
28.082.612
74.772.631
79.171.830
79.642.631
86.321.831
86.831.933
88.521.728
90.651.831
93.771.228
95.041.839
97.861.729
103.022.131
103.302.032
104.181.928
106.981.930
114.841.928
118.021.811
119.261.928
119.322.031
120.351.629
122.132.610
123.041.810
125.511.629
125.601.726
125.632.033
126.101.728
126.261.829
126.271.728
128.321.830
130.481.632
131.541.928
131.791.932
132.932.232
133.401.630
135.362.133
135.511.830
138.421.533
141.461.836
148.191.831
152.122.129
155.212.05
155.291.731
155.641.232
158.571.79
158.871.830
161.531.927
162.731.830
165.641.935
166.101.730
166.442.228
167.891.612
182.911.610
184.021.831
187.232.328
196.101.930
196.712.08
197.992.430
200.352.136
200.372.632
205.252.031
214.331.930
214.831.827
222.641.910
225.331.928
229.031.729
231.032.129
236.291.727
239.012.132
239.281.732
240.262.835
240.312.133
240.622.433
241.041.830
241.192.134
241.422.333
241.571.732
242.122.333
250.952.332
252.081.833
252.132.037
254.841.833
  1. 2.870 km SE of Hōlualoa, Hawaii, United States09-19 03:28
  2. 2.869 km SE of Hōlualoa, Hawaii, United States09-28 11:35
  3. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 14:06
  4. 2.652 km SW of Hawaiian Paradise Park, United States09-26 19:41
  5. 2.671 km SE of Hōlualoa, Hawaii, United States09-19 15:24
  6. 2.667 km SE of Hōlualoa, Hawaii, United States09-21 18:58
  7. 2.671 km SE of Hōlualoa, Hawaii, United States09-23 13:27
  8. 2.471 km SE of Hōlualoa, Hawaii, United States09-28 11:57
  9. 2.457 km SW of Hawaiian Paradise Park, United States09-26 17:19
  10. 2.368 km SW of Hawaiian Paradise Park, United States09-28 22:17
  11. 2.369 km SE of Hōlualoa, Hawaii, United States09-26 06:33
  12. 2.371 km SE of Hōlualoa, Hawaii, United States09-28 12:45
  13. 2.371 km SE of Hōlualoa, Hawaii, United States09-28 13:27
  14. 2.249 km SW of Hawaiian Paradise Park, United States09-25 09:46
  15. 2.276 km SW of Hawaiian Paradise Park, United States09-24 00:15
  16. 2.167 km SE of Hōlualoa, Hawaii, United States09-24 19:27
  17. 2.170 km SE of Hōlualoa, Hawaii, United States09-22 18:21
  18. 2.171 km SE of Hōlualoa, Hawaii, United States09-28 12:31
  19. 2.172 km SE of Hōlualoa, Hawaii, United States09-28 11:38
  20. 2.164 km SW of Hawaiian Paradise Park, United States09-28 02:21
  21. 2.171 km SE of Hōlualoa, Hawaii, United States09-28 10:20
  22. 2.171 km SE of Hōlualoa, Hawaii, United States09-24 02:41
  23. 2.166 km SE of Hōlualoa, Hawaii, United States09-26 19:41
  24. 2.067 km SE of Hōlualoa, Hawaii, United States09-23 10:38
  25. 2.052 km SW of Hawaiian Paradise Park, United States09-24 22:32

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Event id hv75039357. First recorded here 28 Sept 2026, 17:32:11 UTC. Solutions: USGS · HV (usgs:hv75039357). Cite as: SeismoAtlas, “M3.0 earthquake 70 km SE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/hv75039357-m3-0-earthquake-70-km-se-of-holualoa-hawaii-united-states, data from USGS.

JSON: /api/v1/events/hv75039357. SeismoAtlas is not an official warning service.