4
Recorded earthquakes
region
February 1980
Nichinan earthquakes in February 1980
Earthquake archive for Nichinan in February 1980: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.5
Strongest magnitude
5.0
Average magnitude
27.0 km
Average depth
Strongest event
5.5
21 Feb 1980
Analysis of the recorded activity
During February 1980, 4 earthquakes were recorded near Nichinan. Magnitudes ranged from 4.7 to 5.5, with an average of 5.0; depths ranged from 24.0 to 33.0 km, averaging 27.0 km. Activity extended from Thursday, February 21, 1980 to Friday, February 22, 1980 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list