Hawaii earthquakes

M2.7 earthquake 15 km SE of Fern Forest, Hawaii

A magnitude 2.7 earthquake struck 15 km SE of Fern Forest, Hawaii on Wed, Aug 30, 1978, 4:27 PM HST (02:27 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M3.1 Island of Hawaii, 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
2.7 (ml), micro
Local time
UTC
1978-08-31 02:27:04 UTC
Depth
7.3 km (4.6 mi), shallow
Epicenter
19.353° N, 155.042° 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, 0.5 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
141°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 196 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 196.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19781422. Read Tue, Sep 22, 2026, 9:21 PM UTC.