4
Recorded earthquakes
region
August 1987
Iwaki earthquakes in August 1987
Earthquake archive for Iwaki in August 1987: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.9
Strongest magnitude
4.8
Average magnitude
45.4 km
Average depth
Strongest event
4.9
14 Aug 1987
Iwaki, Japan
Depth
52.6 km
UTC
23:22:42
Coordinates
36.859, 141.614
Analysis of the recorded activity
During August 1987, 4 earthquakes were recorded near Iwaki. Magnitudes ranged from 4.7 to 4.9, with an average of 4.8; depths ranged from 33.0 to 56.5 km, averaging 45.4 km. Activity extended from Friday, August 14, 1987 to Saturday, August 29, 1987 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.9
52.6 km
Iwaki, Japan
14 Aug 1987 23:22:42 UTC
4.8
33.0 km
Iwaki, Japan
19 Aug 1987 00:35:20 UTC
4.8
56.5 km
Iwaki, Japan
15 Aug 1987 16:08:36 UTC
4.7
39.4 km
Iwaki, Japan
29 Aug 1987 10:12:57 UTC