3
Recorded earthquakes
region
1971
south of Tonga earthquakes in 1971
Earthquake archive for south of Tonga in 1971: 3 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.7
Strongest magnitude
5.6
Average magnitude
19.0 km
Average depth
Strongest event
5.7
13 Apr 1971
Analysis of the recorded activity
During 1971, 3 earthquakes were recorded near south of Tonga. Magnitudes ranged from 5.6 to 5.7, with an average of 5.6; depths ranged from 15.0 to 27.0 km, averaging 19.0 km. Activity extended from Tuesday, March 30, 1971 to Thursday, September 2, 1971 UTC.
Only 3 earthquakes in the current catalogue match this period and location.
Event list