4
Recorded earthquakes
region
April 1977
Bonin Islands earthquakes in April 1977
Earthquake archive for Bonin Islands in April 1977: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
6.2
Strongest magnitude
5.1
Average magnitude
145.8 km
Average depth
Strongest event
6.2
21 Apr 1977
Analysis of the recorded activity
During April 1977, 4 earthquakes were recorded near Bonin Islands. Magnitudes ranged from 4.3 to 6.2, with an average of 5.1; depths ranged from 27.0 to 490.0 km, averaging 145.8 km. Activity extended from Sunday, April 17, 1977 to Thursday, April 21, 1977 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list