M3.0 earthquake 18 km WSW of Volcano, Hawaii

A magnitude 3.0 earthquake struck 18 km WSW of Volcano, Hawaii on Sat, Sep 21, 1963, 6:49 AM GMT-10 (16:49 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M3.4 18 km S of Fern Forest, Hawaii. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event hv19630840. Read Tue, Sep 22, 2026, 7:33 AM UTC.