5
Recorded earthquakes
city
1977
Surallah earthquakes in 1977
Earthquake archive for Surallah in 1977: 5 recorded events with dates, magnitudes, depths and epicenter details.
Overview
Period at a glance
5.2
Strongest magnitude
5.0
Average magnitude
86.8 km
Average depth
Strongest event
5.2
18 May 1977
Analysis of the recorded activity
During 1977, 5 earthquakes were recorded near Surallah. Magnitudes ranged from 4.8 to 5.2, with an average of 5.0; depths ranged from 33.0 to 142.0 km, averaging 86.8 km. Activity extended from Monday, January 31, 1977 to Saturday, May 28, 1977 UTC.
Only 5 earthquakes in the current catalogue match this period and location.
Event list
All earthquakes
Mag
Location
Details
5.2
33.0 km
Polomolok, Philippines
18 May 1977 22:48:40 UTC
5.1
48.0 km
Koronadal, Philippines
28 May 1977 02:41:32 UTC
5.1
142.0 km
General Santos, Philippines
31 Jan 1977 23:53:03 UTC
5.0
116.0 km
General Santos, Philippines
20 Feb 1977 22:26:47 UTC
4.8
95.0 km
Cotabato City, Philippines
12 Mar 1977 06:02:44 UTC