M2.6 earthquake 41 km ESE of Hōlualoa, Hawaii, United States
A magnitude 2.6 earthquake struck 41 km ESE of Hōlualoa, Hawaii, United States at 09:13 local time (19:13 UTC) on 18 Sept 2026, at a depth of 27 km, according to USGS.
1 reports to USGS “Did You Feel It?”
Data: USGS · updated 2026-09-18 21:23 UTC · reviewed
- Magnitude
- 2.6micro
local magnitude (Richter) (ml) - Depth
- 26.8 km
- Status
- Reviewed
- Origin time
- 2026-09-18 19:13:17 UTC
- Local: 18 Sept 2026, 09:13:17 (Pacific/Honolulu)
- Epicentre
- 19.465° N, 155.590° 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
| Place | Distance | Est. shaking |
|---|---|---|
| HōlualoaHawaii, United States · pop. 8,538 | 41 km | INot felt |
| Kailua-KonaHawaii, United States · pop. 11,975 | 47 km | INot felt |
| HiloHawaii, United States · pop. 43,263 | 60 km | INot felt |
| HonoluluHawaii, United States · pop. 350,964 | 313 km | INot 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, which has been reviewed by an analyst.
| Agency | Magnitude | Depth | Epicentre | Time offset | Status |
|---|---|---|---|---|---|
| USGSheadlineUSGS NEIC via U.S. Geological Survey | 2.6 ml | 26.8 km | 19.46° N, 155.59° 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 120 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 27 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.
M2.6 releases about 32× the energy of M1.6, and its waves are about 10× taller on a seismogram. Energy: 120 kg of TNT vs 4 kg of TNT.
Each square is the energy of one M1.6. Energy from log₁₀E = 1.5M + 4.8.
Aftershocks and nearby activity
12 later earthquakes within 30 km; the largest was M3.2 5 days ago. Aftershock rates usually fall off roughly in proportion to 1/time.
Mainshock M2.6
12 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).
| Time after mainshock (hours) | Magnitude | Depth (km) |
|---|---|---|
| 85.88 | 1.2 | 28 |
| 96.29 | 1.9 | 28 |
| 124.87 | 3.2 | 7 |
| 150.68 | 1.7 | 9 |
| 158.21 | 1.7 | 30 |
| 158.55 | 2.2 | 28 |
| 188.21 | 1.9 | 30 |
| 188.82 | 2.0 | 8 |
| 192.46 | 2.1 | 36 |
| 192.48 | 2.6 | 32 |
| 206.94 | 1.8 | 27 |
| 214.75 | 1.9 | 10 |
- 3.235 km SSE of Hōlualoa, Hawaii, United States09-24 00:05
- 2.652 km SW of Hawaiian Paradise Park, United States09-26 19:41
- 2.249 km SW of Hawaiian Paradise Park, United States09-25 09:46
- 2.166 km SE of Hōlualoa, Hawaii, United States09-26 19:41
- 2.057 km ESE of Hōlualoa, Hawaii, United States09-26 16:02
- 1.958 km SW of Hawaiian Paradise Park, United States09-22 19:30
- 1.959 km ESE of Hōlualoa, Hawaii, United States09-27 17:58
- 1.965 km SE of Hōlualoa, Hawaii, United States09-26 15:25
- 1.855 km WSW of Hawaiian Paradise Park, United States09-27 10:09
- 1.753 km ESE of Hōlualoa, Hawaii, United States09-25 01:53
- 1.758 km WSW of Hawaiian Paradise Park, United States09-25 09:26
- 1.257 km SW of Hawaiian Paradise Park, United States09-22 09:06
Did you feel it?
Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.
Event id us7000tiej. First recorded here 28 Sept 2026, 17:32:11 UTC. Solutions: USGS (usgs:us7000tiej). Cite as: SeismoAtlas, “M2.6 earthquake 41 km ESE of Hōlualoa, Hawaii, United States”, https://seismoatlas.com/earthquake/us7000tiej-m2-6-earthquake-41-km-ese-of-holualoa-hawaii-united-states, data from USGS.
JSON: /api/v1/events/us7000tiej. SeismoAtlas is not an official warning service.