2
Recorded earthquakes
city
1991
Minami-Sōma earthquakes in 1991
Earthquake archive for Minami-Sōma in 1991: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.6
Strongest magnitude
4.4
Average magnitude
61.0 km
Average depth
Strongest event
4.6
08 Apr 1991
Iwaki, Japan
Depth
53.9 km
UTC
23:26:13
Coordinates
37.359, 141.640
Analysis of the recorded activity
During 1991, 2 earthquakes were recorded near Minami-Sōma. Magnitudes ranged from 4.2 to 4.6, with an average of 4.4; depths ranged from 53.9 to 68.1 km, averaging 61.0 km. Activity extended from Monday, April 8, 1991 to Wednesday, July 3, 1991 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.6
53.9 km
Iwaki, Japan
08 Apr 1991 23:26:13 UTC
4.2
68.1 km
Minami-Sōma, Japan
03 Jul 1991 03:13:19 UTC