2
Recorded earthquakes
region
April 1981
San Juan earthquakes in April 1981
Earthquake archive for San Juan in April 1981: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.7
Strongest magnitude
4.6
Average magnitude
52.8 km
Average depth
Strongest event
4.7
11 Apr 1981
San Juan, Puerto Rico
Depth
72.7 km
UTC
17:27:08
Coordinates
18.834, -65.872
Analysis of the recorded activity
During April 1981, 2 earthquakes were recorded near San Juan. Magnitudes ranged from 4.6 to 4.7, with an average of 4.7; depths ranged from 33.0 to 72.7 km, averaging 52.9 km. Activity extended from Friday, April 3, 1981 to Saturday, April 11, 1981 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.7
72.7 km
San Juan, Puerto Rico
11 Apr 1981 17:27:08 UTC
4.6
33.0 km
San Juan, Puerto Rico
03 Apr 1981 16:28:51 UTC