5
Recorded earthquakes
city
1975
Union City earthquakes in 1975
Earthquake archive for Union City in 1975: 5 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.4
Strongest magnitude
4.2
Average magnitude
5.8 km
Average depth
Strongest event
4.4
18 Nov 1975
Gilroy, United States
Depth
4.8 km
UTC
13:37:59
Coordinates
36.938, -121.434
Analysis of the recorded activity
During 1975, 5 earthquakes were recorded near Union City. Magnitudes ranged from 4.0 to 4.4, with an average of 4.2; depths ranged from 3.9 to 7.6 km, averaging 5.8 km. Activity extended from Thursday, January 23, 1975 to Tuesday, November 18, 1975 UTC.
Only 5 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.4
4.8 km
Gilroy, United States
18 Nov 1975 13:37:59 UTC
4.3
7.2 km
Gilroy, United States
23 Jan 1975 18:16:10 UTC
4.2
5.7 km
Gilroy, United States
03 Mar 1975 11:34:55 UTC
4.1
7.6 km
Gilroy, United States
16 Jul 1975 21:35:11 UTC
4.0
3.9 km
Gilroy, United States
06 Aug 1975 22:23:14 UTC