2
Recorded earthquakes
region
December 1991
Hitachi earthquakes in December 1991
Earthquake archive for Hitachi in December 1991: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.9
Strongest magnitude
4.6
Average magnitude
75.3 km
Average depth
Strongest event
4.9
12 Dec 1991
Hitachi, Japan
Depth
63.0 km
UTC
02:27:45
Coordinates
36.437, 140.709
Analysis of the recorded activity
During December 1991, 2 earthquakes were recorded near Hitachi. Magnitudes ranged from 4.3 to 4.9, with an average of 4.6; depths ranged from 63.0 to 87.6 km, averaging 75.3 km. Activity extended from Thursday, December 12, 1991 to Monday, December 30, 1991 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.9
63.0 km
Hitachi, Japan
12 Dec 1991 02:27:45 UTC
4.3
87.6 km
Hitachi, Japan
30 Dec 1991 23:38:17 UTC