2
Recorded earthquakes
city
1978
San Francisco earthquakes in 1978
Earthquake archive for San Francisco in 1978: 2 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
4.2
Strongest magnitude
4.1
Average magnitude
7.2 km
Average depth
Strongest event
4.2
17 Sep 1978
Redwood City, United States
Depth
6.0 km
UTC
15:38:18
Coordinates
37.153, -122.571
Analysis of the recorded activity
During 1978, 2 earthquakes were recorded near San Francisco. Magnitudes ranged from 4.1 to 4.2, with an average of 4.1; depths ranged from 6.0 to 8.3 km, averaging 7.2 km. Activity extended from Tuesday, August 29, 1978 to Sunday, September 17, 1978 UTC.
Only 2 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
4.2
6.0 km
Redwood City, United States
17 Sep 1978 15:38:18 UTC
4.1
8.3 km
San Jose, United States
29 Aug 1978 00:14:45 UTC