M4.6 Earthquake 6 km WNW of Kahaluu-Keauhou, Hawaii — June 3, 2026
2026-06-03 03:58:53 UTC (1 hour ago) · approx. 5:58 PM UTC-10 local
Felt by 819 people across surrounding communities. Maximum shaking intensity MMI 4.3 (moderate). Aftershock of the M6.0 mainshock.
On June 3, 2026 at 03:58 UTC, a magnitude 4.6 shallow crustal earthquake struck 6 km WNW of Kahaluu-Keauhou, Hawaii, at a depth of 34.0 km and coordinates 19.5882°, -156.0163°. The earthquake was reported felt by 819 peopleacross surrounding communities, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 4.3 (moderate). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 56 seismic stations with moderate location accuracy and was assigned a USGS significance rating of 682, making it a moderate-impact event. The nearest populated place is Kahaluu-Keauhou (population 7,236).
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 108 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 858 m — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 6.0 mainshock that occurred 10 days ago 13 km S of Honaunau-Napoopoo, Hawaii. Since the mainshock, the USGS has recorded 18 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
The epicenter is located in Hawaii, a region characterized by intraplate volcanic activity over the Hawaiian mantle plume hotspot, with seismicity driven by magma intrusion and flank instability. View all earthquakes in Hawaii.
Learn more: Magnitude scale · Aftershock sequences
Nearest Populated Places
What the Shaking Felt Like
At MMI 4.3 (moderate), people in the most strongly affected areas would have experienced: Mild shaking, similar to a passing truck. Hanging objects swing. Glasses and dishes may rattle. Not commonly felt outdoors.
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 819 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Population exposure (USGS PAGER)
Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.
| Shaking intensity (MMI) | Description | Population exposed |
|---|---|---|
| MMI 3 | weak | 147,877 |
| MMI 4 | light | 61,642 |
Earthquake Details
-156.0163°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near Kahaluu-Keauhou, Hawaii?
The magnitude 4.6 earthquake that struck 6 km WNW of Kahaluu-Keauhou, Hawaii on June 3, 2026 at 03:58 UTC had a depth of 34.0 km. It was felt by 819 people with maximum shaking intensity of MMI 4.3 (moderate). For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 19.5882°, -156.0163°, which is 6 km WNW of Kahaluu-Keauhou, Hawaii. The nearest populated place is Kahaluu-Keauhou (population 7,236). View all earthquakes in Hawaii.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M6.0 one earlier?
No. This magnitude 4.6 earthquake is an aftershock of the larger magnitude 6.0 mainshock that occurred earlier 13 km S of Honaunau-Napoopoo, Hawaii. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Has Hawaii had earthquakes this big before?
The largest recorded earthquake in Hawaii was the M7.9 Ka'u District earthquake of April 2, 1868. Today's magnitude 4.6 event is significantly smaller than that historical record.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: hv74975297). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, June 3, 2026). M4.6 Earthquake 6 km WNW of Kahaluu-Keauhou, Hawaii — June 3, 2026. Retrieved June 3, 2026 from https://www.earthquaketracker.org/earthquakes/event/hv74975297/