3
Recorded earthquakes
region
April 1977
Izu Islands earthquakes in April 1977
Earthquake archive for Izu Islands in April 1977: 3 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.5
Strongest magnitude
5.1
Average magnitude
307.3 km
Average depth
Strongest event
5.5
20 Apr 1977
Analysis of the recorded activity
During April 1977, 3 earthquakes were recorded near Izu Islands. Magnitudes ranged from 4.4 to 5.5, with an average of 5.1; depths ranged from 25.0 to 493.0 km, averaging 307.3 km. Activity extended from Wednesday, April 20, 1977 to Wednesday, April 27, 1977 UTC.
Only 3 earthquakes in the current catalogue match this period and location.
Event list