5
Recorded earthquakes
city
1981
Minami-Sōma earthquakes in 1981
Earthquake archive for Minami-Sōma in 1981: 5 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.2
Strongest magnitude
4.7
Average magnitude
65.0 km
Average depth
Strongest event
5.2
22 May 1981
Analysis of the recorded activity
During 1981, 5 earthquakes were recorded near Minami-Sōma. Magnitudes ranged from 4.0 to 5.2, with an average of 4.7; depths ranged from 35.0 to 98.7 km, averaging 65.0 km. Activity extended from Friday, May 22, 1981 to Friday, November 6, 1981 UTC.
Only 5 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
5.2
35.0 km
Iwaki, Japan
22 May 1981 18:30:37 UTC
4.9
83.0 km
Sendai, Japan
06 Nov 1981 04:34:05 UTC
4.8
47.4 km
Ishinomaki, Japan
21 Oct 1981 13:51:26 UTC
4.5
61.1 km
Ishinomaki, Japan
09 Jul 1981 00:13:03 UTC
4.0
98.7 km
Shirakawa, Japan
27 Sep 1981 10:11:28 UTC