4
Recorded earthquakes
city
1990
Pacifica earthquakes in 1990
Earthquake archive for Pacifica in 1990: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.4
Strongest magnitude
4.3
Average magnitude
7.5 km
Average depth
Strongest event
4.4
28 Apr 1990
Hayward, United States
Depth
6.7 km
UTC
04:41:47
Coordinates
37.876, -121.974
Analysis of the recorded activity
During 1990, 4 earthquakes were recorded near Pacifica. Magnitudes ranged from 4.1 to 4.4, with an average of 4.3; depths ranged from 6.7 to 7.9 km, averaging 7.5 km. Activity extended from Saturday, April 7, 1990 to Sunday, July 1, 1990 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.4
6.7 km
Hayward, United States
28 Apr 1990 04:41:47 UTC
4.4
7.9 km
Hayward, United States
07 Apr 1990 02:39:17 UTC
4.2
7.7 km
Hayward, United States
28 Apr 1990 04:47:41 UTC
4.1
7.6 km
San Jose, United States
01 Jul 1990 00:36:41 UTC