3
Recorded earthquakes
region
December 1977
Volcano Islands earthquakes in December 1977
Earthquake archive for Volcano Islands in December 1977: 3 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
6.8
Strongest magnitude
5.4
Average magnitude
121.7 km
Average depth
Strongest event
6.8
21 Dec 1977
Analysis of the recorded activity
During December 1977, 3 earthquakes were recorded near Volcano Islands. Magnitudes ranged from 4.6 to 6.8, with an average of 5.4; depths ranged from 33.0 to 299.0 km, averaging 121.7 km. Activity extended from Tuesday, December 20, 1977 to Wednesday, December 21, 1977 UTC.
Only 3 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
6.8
33.0 km
Volcano Islands, Japan region
21 Dec 1977 01:00:32 UTC
4.9
299.0 km
Volcano Islands, Japan region
20 Dec 1977 07:05:30 UTC
4.6
33.0 km
Volcano Islands, Japan region
21 Dec 1977 01:50:37 UTC