Hawaii earthquakes

M3.0 earthquake 20 km SE of Honaunau-Napoopoo, Hawaii

A magnitude 3.0 earthquake struck 20 km SE of Honaunau-Napoopoo, Hawaii on Fri, Apr 14, 1978, 12:30 AM HST (10:30 UTC), 52 km (32 mi) below the surface.

A larger quake followed: M3.8 23 km SE of Naalehu, Hawaii. This one was a foreshock.

Honaunau-Napoopoo forecast More 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: 3.0 (ml), minor
Local time: Fri, Apr 14, 1978, 12:30 AM HST
UTC: 1978-04-14 10:30:50 UTC
Depth: 51.6 km (32.0 mi), shallow
Epicenter: 19.307° N, 155.754° 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 5.3 km horizontally, 2.5 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 313°, 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: 200 in the 60 days after this one and 176 in the 30 days before it.

After

The first 60 of 200.

Before

Earthquakes today Hawaii earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19780607. Read Wed, Sep 30, 2026, 12:37 AM UTC.