M4.5 earthquake 14 km SSW of Volcano, Hawaii

A magnitude 4.5 earthquake struck 14 km SSW of Volcano, Hawaii on Wed, Dec 2, 1964, 10:28 PM GMT-10 (08:28 UTC), 28 km (18 mi) below the surface.

A larger quake followed: M4.9 13 km SSE of Volcano, Hawaii. This one was a foreshock.

Map

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

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
4.45	ML, local (Richter)	Hawaiian Volcano Observatory	Preferred · Final · ±0.2 · 4 stations
4.7	mb, body-wave	USGS historic United States catalog	Final

The USGS’s account of the effects of this earthquake.

Maximum observed Modified Mercalli Intensity (MMI) V

From the USGS event page for hv19640538. U.S. Geological Survey text and figures are in the public domain.

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: 108 in the 60 days after this one and 36 in the 30 days before it.

The first 60 of 108.

From the USGS Earthquake Hazards Program and its partner networks, event hv19640538 (also filed as ushis2732). Read Mon, Oct 5, 2026, 11:41 AM UTC.