LEGAZPI CITY, Nov. 19 2010 - At least 41 volcanic earthquakes jolted Mount Bulusan on Friday, the highest number so far detected by seismic instruments for the past five days, signifying that pressure is still building up and this may probably lead to more ash and steam laden explosions, volcanologists said.
The Philippine Institute of Volcanology and Seismology (Phivolcs) bulletin reported that seismic network detected a total of 41 volcanic earthquakes during the past 24 hours.