Hawaii earthquakes

M3.4 earthquake 11 km WSW of Volcano, Hawaii

A magnitude 3.4 earthquake struck 11 km WSW of Volcano, Hawaii on Sun, Apr 10, 1966, 2:00 PM GMT-10 (00:00 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M3.4 20 km SSE of Fern Forest, Hawaii. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
3.4 (ml), minor
Local time
UTC
1966-04-11 00:00:50 UTC
Depth
29.1 km (18.1 mi), shallow
Epicenter
19.388° N, 155.325° 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.

Location uncertainty
About 1.1 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
112°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 58 in the 60 days after this one and 25 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19660121. Read Tue, Sep 22, 2026, 6:49 AM UTC.