M2.6 earthquake 5 km SSW of Volcano, Hawaii

A magnitude 2.6 earthquake struck 5 km SSW of Volcano, Hawaii on Sun, Apr 21, 1985, 11:31 AM HST (21:31 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.6 2 km ESE of Kahaluu-Keauhou, 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: 197 in the 60 days after this one and 131 in the 30 days before it.

The first 60 of 197.

From the USGS Earthquake Hazards Program and its partner networks, event hv19850652. Read Wed, Sep 30, 2026, 6:09 AM UTC.