4
Recorded earthquakes
city
1991
Kōriyama earthquakes in 1991
Earthquake archive for Kōriyama in 1991: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.4
Strongest magnitude
4.6
Average magnitude
67.9 km
Average depth
Strongest event
5.4
25 Jun 1991
Analysis of the recorded activity
During 1991, 4 earthquakes were recorded near Kōriyama. Magnitudes ranged from 4.1 to 5.4, with an average of 4.6; depths ranged from 10.0 to 112.0 km, averaging 67.9 km. Activity extended from Tuesday, June 25, 1991 to Monday, December 30, 1991 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
5.4
61.9 km
Hitachi, Japan
25 Jun 1991 03:49:18 UTC
4.6
112.0 km
Hitachi, Japan
23 Jul 1991 14:53:47 UTC
4.3
87.6 km
Hitachi, Japan
30 Dec 1991 23:38:17 UTC
4.1
10.0 km
Shibata, Japan
01 Jul 1991 02:26:26 UTC