3
Recorded earthquakes
region
September 1981
Bonin Islands earthquakes in September 1981
Earthquake archive for Bonin Islands in September 1981: 3 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.7
Strongest magnitude
4.9
Average magnitude
33.0 km
Average depth
Strongest event
5.7
24 Sep 1981
Analysis of the recorded activity
During September 1981, 3 earthquakes were recorded near Bonin Islands. Magnitudes ranged from 4.4 to 5.7, with an average of 4.9; depths ranged from 33.0 to 33.0 km, averaging 33.0 km. Activity extended from Saturday, September 12, 1981 to Friday, September 25, 1981 UTC.
Only 3 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
5.7
33.0 km
Bonin Islands, Japan region
24 Sep 1981 17:20:49 UTC
4.6
33.0 km
Bonin Islands, Japan region
12 Sep 1981 16:14:32 UTC
4.4
33.0 km
Bonin Islands, Japan region
25 Sep 1981 10:21:12 UTC