4
Recorded earthquakes
city
1978
Olongapo City earthquakes in 1978
Earthquake archive for Olongapo City in 1978: 4 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.3
Strongest magnitude
4.9
Average magnitude
54.8 km
Average depth
Strongest event
5.3
31 Mar 1978
Analysis of the recorded activity
During 1978, 4 earthquakes were recorded near Olongapo City. Magnitudes ranged from 4.6 to 5.3, with an average of 4.9; depths ranged from 42.0 to 70.0 km, averaging 54.8 km. Activity extended from Friday, March 31, 1978 to Monday, December 18, 1978 UTC.
Only 4 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
5.3
57.0 km
Olongapo City, Philippines
31 Mar 1978 03:22:16 UTC
4.9
50.0 km
San Antonio, Philippines
14 Dec 1978 01:48:34 UTC
4.8
42.0 km
Subic, Philippines
13 Dec 1978 10:34:58 UTC
4.6
70.0 km
San Antonio, Philippines
18 Dec 1978 15:41:31 UTC