Hawaii earthquakes

M6.4 earthquake 71 km ENE of Honomu, Hawaii

A magnitude 6.4 earthquake struck 71 km ENE of Honomu, Hawaii on Sun, Jun 16, 1940, 11:56 PM GMT-10:30 (10:26 UTC), 15 km (9 mi) below the surface.

Honomu forecastMore in Hawaii

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
6.4 (mw), strong
Local time
UTC
1940-06-17 10:26:51 UTC
Depth
15.0 km (9.3 mi), shallow
Epicenter
20.115° N, 154.487° W
Region
Hawaii
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Magnitude uncertainty
±0.23
Depth from
From location

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.

After

Earthquakes todayHawaii earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem901435 (also filed as ushis1318). Read Tue, Sep 22, 2026, 8:41 PM UTC.