2
Recorded earthquakes
region
April 1985
Chiba earthquakes in April 1985
Earthquake archive for Chiba in April 1985: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.6
Strongest magnitude
4.5
Average magnitude
80.8 km
Average depth
Strongest event
4.6
12 Apr 1985
Chiba, Japan
Depth
74.4 km
UTC
16:12:10
Coordinates
35.582, 140.053
Analysis of the recorded activity
During April 1985, 2 earthquakes were recorded near Chiba. Magnitudes ranged from 4.4 to 4.6, with an average of 4.5; depths ranged from 74.4 to 87.1 km, averaging 80.8 km. Activity extended from Friday, April 12, 1985 to Sunday, April 21, 1985 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.6
74.4 km
Chiba, Japan
12 Apr 1985 16:12:10 UTC
4.4
87.1 km
Chiba, Japan
21 Apr 1985 14:29:08 UTC