Hawaii earthquakes

M1.8 earthquake 12 km S of Fern Forest, Hawaii

A magnitude 1.8 earthquake struck 12 km S of Fern Forest, Hawaii on Tue, Oct 8, 1968, 7:20 AM GMT-10 (17:20 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.0 10 km S of Fern Forest, Hawaii. This one was a foreshock.

Fern Forest forecastMore in Hawaii

Map

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 17:20:32 UTC
Depth
2.0 km (1.3 mi), shallow
Epicenter
19.356° N, 155.158° 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 1.2 km horizontally, 0.7 km in depth
Depth from
From location
Station coverage gap
168°
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: 98 in the 60 days after this one and 101 in the 30 days before it.

After

The first 60 of 98.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19681262. Read Tue, Sep 22, 2026, 12:16 PM UTC.