4
Recorded earthquakes
city
1971
Iwaki earthquakes in 1971
Earthquake archive for Iwaki in 1971: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.5
Strongest magnitude
5.4
Average magnitude
44.3 km
Average depth
Strongest event
5.5
08 Sep 1971
Analysis of the recorded activity
During 1971, 4 earthquakes were recorded near Iwaki. Magnitudes ranged from 5.2 to 5.5, with an average of 5.4; depths ranged from 42.8 to 45.5 km, averaging 44.3 km. Activity extended from Wednesday, January 6, 1971 to Friday, October 29, 1971 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list