2
Recorded earthquakes
city
1999
Isahaya earthquakes in 1999
Earthquake archive for Isahaya in 1999: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.6
Strongest magnitude
4.6
Average magnitude
91.2 km
Average depth
Strongest event
4.6
09 Mar 1999
Kōshi, Japan
Depth
12.8 km
UTC
03:53:52
Coordinates
32.930, 131.028
Analysis of the recorded activity
During 1999, 2 earthquakes were recorded near Isahaya. Magnitudes ranged from 4.5 to 4.6, with an average of 4.6; depths ranged from 12.8 to 169.5 km, averaging 91.2 km. Activity extended from Tuesday, March 9, 1999 to Friday, May 7, 1999 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.6
12.8 km
Kōshi, Japan
09 Mar 1999 03:53:52 UTC
4.5
169.5 km
Kumamoto, Japan
07 May 1999 23:20:02 UTC