2
Recorded earthquakes
region
October 1991
Izu Islands earthquakes in October 1991
Earthquake archive for Izu Islands in October 1991: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.5
Strongest magnitude
4.4
Average magnitude
256.5 km
Average depth
Strongest event
4.5
02 Oct 1991
Izu Islands, Japan region
Depth
480.0 km
UTC
21:24:26
Coordinates
30.522, 137.697
Analysis of the recorded activity
During October 1991, 2 earthquakes were recorded near Izu Islands. Magnitudes ranged from 4.3 to 4.5, with an average of 4.4; depths ranged from 33.0 to 480.0 km, averaging 256.5 km. Activity extended from Wednesday, October 2, 1991 to Monday, October 28, 1991 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.5
480.0 km
Izu Islands, Japan region
02 Oct 1991 21:24:26 UTC
4.3
33.0 km
Izu Islands, Japan region
28 Oct 1991 20:18:14 UTC