M3.4 earthquake 37 km WSW of Hawaiian Paradise Park, United States
A magnitude 3.4 earthquake struck 37 km WSW of Hawaiian Paradise Park, United States at 21:52 local time (07:52 UTC) on 30 Sept 2026, at a depth of 0 km, according to USGS.
revised from M3.8 · 20 reports to USGS “Did You Feel It?”
Data: USGS · updated 2026-10-01 08:04 UTC · reviewed
- Magnitude
- 3.4minor
local magnitude (Richter) (ml)
revised from 3.8 - Depth
- 0.3 km
- Status
- Reviewed
- Origin time
- 2026-10-01 07:52:05 UTC
- Local: 30 Sept 2026, 21:52:05 (Pacific/Honolulu)
- Epicentre
- 19.416° N, 155.277° W
Advertisement
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 |
|---|---|---|
| Hawaiian Paradise ParkHawaii, United States · pop. 11,404 | 37 km | IIWeak |
| HiloHawaii, United States · pop. 43,263 | 40 km | IIWeak |
| HonoluluHawaii, United States · pop. 350,964 | 342 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. Likely felt out to about 24 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.
| Agency | Magnitude | Depth | Epicentre | Time offset | Status |
|---|---|---|---|---|---|
| USGS · HVheadlineHawaiian Volcano Observatory via U.S. Geological Survey | 3.4 mlwas 3.8 | 0.3 km | 19.42° N, 155.28° W | – | Reviewed · 1 revision |
Advertisement
How big was it?
Often felt by people at rest close to the epicentre, rarely causes damage.
It released roughly the energy of 2 t 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 0 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.
M3.4 releases about 33× the energy of M2.4, and its waves are about 10× taller on a seismogram. Energy: 2 t of TNT vs 60 kg of TNT.
Each square is the energy of one M2.4. Energy from log₁₀E = 1.5M + 4.8.
Aftershocks and nearby activity
7 later earthquakes within 30 km; the largest was M2.3 25 min ago. 50 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.
Mainshock M3.4
7 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).
| Time after mainshock (hours) | Magnitude | Depth (km) |
|---|---|---|
| 1.15 | 1.8 | 0 |
| 1.19 | 1.9 | 0 |
| 1.29 | 1.9 | 0 |
| 1.36 | 2.3 | 0 |
| 1.48 | 2.1 | 0 |
| 1.58 | 2.2 | 0 |
| 1.67 | 1.9 | 0 |
- 2.338 km WSW of Hawaiian Paradise Park, United States10-01 09:13
- 2.238 km WSW of Hawaiian Paradise Park, United States10-01 09:26
- 2.138 km WSW of Hawaiian Paradise Park, United States10-01 09:21
- 1.937 km WSW of Hawaiian Paradise Park, United States10-01 09:03
- 1.938 km WSW of Hawaiian Paradise Park, United States10-01 09:09
- 1.938 km WSW of Hawaiian Paradise Park, United States10-01 09:32
- 1.838 km WSW of Hawaiian Paradise Park, United States10-01 09:01
Did you feel it?
Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.
Advertisement
Event id hv75046747. First recorded here 1 Oct 2026, 07:56:32 UTC. Solutions: USGS · HV (usgs:hv75046747). Cite as: SeismoAtlas, “M3.4 earthquake 37 km WSW of Hawaiian Paradise Park, United States”, https://seismoatlas.com/earthquake/hv75046747-m3-4-earthquake-37-km-wsw-of-hawaiian-paradise-park-united-states, data from USGS.
JSON: /api/v1/events/hv75046747. SeismoAtlas is not an official warning service.