Hawaii earthquakes

M3.1 earthquake 17 km SSE of Volcano, Hawaii

A magnitude 3.1 earthquake struck 17 km SSE of Volcano, Hawaii on Fri, Aug 19, 1966, 5:24 AM GMT-10 (15:24 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M3.4 17 km W of Volcano, Hawaii. This one was a foreshock.

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

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The earthquake

Magnitude
3.1 (ml), minor
Local time
UTC
1966-08-19 15:24:51 UTC
Depth
47.0 km (29.2 mi), shallow
Epicenter
19.295° N, 155.164° 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 5.2 km horizontally, 2.8 km in depth
Magnitude uncertainty
±0.43
Depth from
From location
Station coverage gap
235°, poorly surrounded by stations
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 93 in the 60 days after this one and 32 in the 30 days before it.

After

The first 60 of 93.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19660327. Read Tue, Sep 22, 2026, 9:26 AM UTC.