2
Recorded earthquakes
region
October 1984
Bonin Islands earthquakes in October 1984
Earthquake archive for Bonin Islands in October 1984: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.9
Strongest magnitude
4.8
Average magnitude
272.4 km
Average depth
Strongest event
4.9
18 Oct 1984
Bonin Islands, Japan region
Depth
511.9 km
UTC
21:42:38
Coordinates
28.073, 139.365
Analysis of the recorded activity
During October 1984, 2 earthquakes were recorded near Bonin Islands. Magnitudes ranged from 4.7 to 4.9, with an average of 4.8; depths ranged from 33.0 to 511.9 km, averaging 272.5 km. Activity extended from Friday, October 5, 1984 to Thursday, October 18, 1984 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.9
511.9 km
Bonin Islands, Japan region
18 Oct 1984 21:42:38 UTC
4.7
33.0 km
Bonin Islands, Japan region
05 Oct 1984 14:10:21 UTC