Hawaii earthquakes

M1.8 earthquake 9 km SSE of Fern Forest, Hawaii

A magnitude 1.8 earthquake struck 9 km SSE of Fern Forest, Hawaii on Mon, Oct 7, 1968, 6:48 PM GMT-10 (04:48 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.8 12 km SSW of Fern Forest, 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 04:48:47 UTC
Depth
-0.1 km (-0.0 mi), shallow
Epicenter
19.388° N, 155.102° 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 3.2 km horizontally, 6.8 km in depth
Depth from
From location
Station coverage gap
281°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 136 in the 60 days after this one and 63 in the 30 days before it.

After

The first 60 of 136.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19681176. Read Tue, Sep 22, 2026, 8:30 AM UTC.