4
Recorded earthquakes
region
September 1984
south of Tonga earthquakes in September 1984
Earthquake archive for south of Tonga in September 1984: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
6.6
Strongest magnitude
5.5
Average magnitude
30.0 km
Average depth
Strongest event
6.6
28 Sep 1984
Analysis of the recorded activity
During September 1984, 4 earthquakes were recorded near south of Tonga. Magnitudes ranged from 4.9 to 6.6, with an average of 5.5; depths ranged from 21.1 to 33.0 km, averaging 30.0 km. Activity extended from Sunday, September 16, 1984 to Friday, September 28, 1984 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list