Hawaii earthquakes

M3.1 earthquake 38 km SW of Captain Cook, Hawaii

A magnitude 3.1 earthquake struck 38 km SW of Captain Cook, Hawaii on Tue, Oct 15, 1968, 12:05 PM GMT-10 (22:05 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M4.3 Hawaii region, Hawaii. This one was a foreshock.

Captain Cook forecast More in Hawaii

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.1 (ML, local (Richter)), minor
Magnitude from: Hawaiian Volcano Observatory
Local time: Tue, Oct 15, 1968, 12:05 PM GMT-10
UTC: 1968-10-15 22:05:01 UTC
Depth: 20.2 km (12.6 mi), shallow
Epicenter: 19.269° N, 156.204° 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 3.0 km horizontally, 16.3 km in depth
Magnitude uncertainty: ±0.25
Depth from: From location
Station coverage gap: 309°, poorly surrounded by stations
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: 47 in the 60 days after this one and 21 in the 30 days before it.

After

Before

Earthquakes today Hawaii earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19681409. Read Sat, Oct 3, 2026, 7:58 PM UTC.