2
Recorded earthquakes
region
September 2025
Chiba earthquakes in September 2025
Earthquake archive for Chiba in September 2025: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.9
Strongest magnitude
4.6
Average magnitude
38.3 km
Average depth
Strongest event
4.9
13 Sep 2025
Chiba, Japan
Depth
10.0 km
UTC
00:17:55
Coordinates
32.899, 141.753
Analysis of the recorded activity
During September 2025, 2 earthquakes were recorded near Chiba. Magnitudes ranged from 4.3 to 4.9, with an average of 4.6; depths ranged from 10.0 to 66.6 km, averaging 38.3 km. Activity extended from Monday, September 8, 2025 to Saturday, September 13, 2025 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.9
10.0 km
Chiba, Japan
13 Sep 2025 00:17:55 UTC
4.3
66.6 km
Chiba, Japan
08 Sep 2025 23:53:01 UTC