4
Recorded earthquakes
city
1991
Kokubu-matsuki earthquakes in 1991
Earthquake archive for Kokubu-matsuki in 1991: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.6
Strongest magnitude
4.5
Average magnitude
101.4 km
Average depth
Strongest event
4.6
27 Oct 1991
Miyakonojō, Japan
Depth
135.6 km
UTC
06:38:07
Coordinates
31.790, 130.884
Analysis of the recorded activity
During 1991, 4 earthquakes were recorded near Kokubu-matsuki. Magnitudes ranged from 4.3 to 4.6, with an average of 4.5; depths ranged from 33.0 to 179.4 km, averaging 101.5 km. Activity extended from Thursday, June 27, 1991 to Sunday, October 27, 1991 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.6
135.6 km
Miyakonojō, Japan
27 Oct 1991 06:38:07 UTC
4.6
179.4 km
Kaseda-shirakame, Japan
23 Aug 1991 04:50:24 UTC
4.5
33.0 km
Honmachi, Japan
27 Jun 1991 00:11:04 UTC
4.3
57.8 km
Miyazaki, Japan
17 Sep 1991 03:06:23 UTC