4
Recorded earthquakes
region
1991
south of Tonga earthquakes in 1991
Earthquake archive for south of Tonga in 1991: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.3
Strongest magnitude
5.0
Average magnitude
29.2 km
Average depth
Strongest event
5.3
18 Oct 1991
Analysis of the recorded activity
During 1991, 4 earthquakes were recorded near south of Tonga. Magnitudes ranged from 4.6 to 5.3, with an average of 5.0; depths ranged from 18.0 to 33.0 km, averaging 29.3 km. Activity extended from Friday, October 18, 1991 to Sunday, November 17, 1991 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list