Hawaii earthquakes

M1.8 earthquake 11 km S of Fern Forest, Hawaii

A magnitude 1.8 earthquake struck 11 km S of Fern Forest, Hawaii on Tue, Oct 8, 1968, 6:19 AM GMT-10 (16:19 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M1.9 17 km SSE of Volcano, Hawaii. This one was a foreshock.

Fern Forest forecastMore in Hawaii

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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
1.8 (ml), micro
Local time
UTC
1968-10-08 16:19:35 UTC
Depth
2.2 km (1.3 mi), shallow
Epicenter
19.364° N, 155.135° 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 0.8 km horizontally, 0.9 km in depth
Depth from
From location
Station coverage gap
146°
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: 102 in the 60 days after this one and 97 in the 30 days before it.

After

The first 60 of 102.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19681255. Read Tue, Sep 22, 2026, 8:47 PM UTC.