By Christopher Lloyd T. Caliwan
MANILA (10-Sept-2012/PNA) – The Philippine Institute of Volcanology and Seismology (Philvocs) has recorded 717 aftershocks in Eastern Samar since the provinces were jolted by 7.7 magnitude quake last Aug. 31.
Winchelle Sevilla, Phivolcs’ Science Research Specialist said the aftershocks were tracked from the time the “big one” occurred up to 12 noon Sunday.
Sevilla said that two significant aftershocks were again monitored by the agency in Eastern Samar before dawn Sunday.
The first aftershock, which measured at magnitude 4.1, was recorded at 12:08 a.m., while the second significant aftershock at magnitude 4.7 was monitored at 2:40 a.m. Both quakes’ epicenter was traced in Guiuan town.
Sevilla said that around 60 significant aftershocks were already recorded in the province, ranging from 3.2 to 6.8-magnitude.
He also said that 717 aftershocks were also recorded in Bukidnon since the province was hit by a magnitude 5.6 tremor on Sept. 4.
As of 12 noon Sunday Philvocs recorded six significant aftershocks in Bukidnon that ranged from magnitude 2.9 to 4.9.
In Sultan Kudarat, he said that 204 aftershocks were monitored in the province, following the magnitude 5.9 quake Monday last week.
He said that only one aftershock was significant, which measured at magnitude 5.0, occurring on the same day.
Sevilla said Philvocs sees that aftershocks in these provinces and neighboring areas would continue to prevail for more than a month, following the main quake. (PNA)