2
Recorded earthquakes
region
June 1977
Isumi earthquakes in June 1977
Earthquake archive for Isumi in June 1977: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.7
Strongest magnitude
4.6
Average magnitude
31.5 km
Average depth
Strongest event
4.7
23 Jun 1977
Isumi, Japan
Depth
30.0 km
UTC
16:40:01
Coordinates
35.164, 140.330
Analysis of the recorded activity
During June 1977, 2 earthquakes were recorded near Isumi. Magnitudes ranged from 4.5 to 4.7, with an average of 4.6; depths ranged from 30.0 to 33.0 km, averaging 31.5 km. Activity extended from Monday, June 20, 1977 to Thursday, June 23, 1977 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.7
30.0 km
Isumi, Japan
23 Jun 1977 16:40:01 UTC
4.5
33.0 km
Isumi, Japan
20 Jun 1977 06:12:47 UTC