|TAAL VOLCANO BULLETIN, 11 February 2011, 8:00 A.M.|
|Thursday, 10 February 2011 23:00|
Taal Volcano’s (14°00.1’N, 120°59.6’E) seismic network recorded two (2) volcanic earthquakes during the past 24 hours. Field investigation conducted on 08 February 2011 inside the Main Crater Lake (via Calauit) showed that steaming activity at the thermal area was weak and no bubbling was noted. A new lake water tide gauge was installed where the water level was measured at 0.68 meters. The lake water temperature and pH values measurements were at 30.70C and 2.87, respectively. Results of the ground deformation surveys (precise leveling and EDM) conducted around the Volcano Island this February showed a slight inflation as compared with the December 2010 survey.
Alert Level 1 is still enforced over Taal Volcano. This means that a hazardous eruption is not imminent. However, the public is reminded that the Main Crater should be strictly off-limits due to sudden occurrence of steam explosions and accumulation of toxic gases. The northern portion of the Main Crater rim, in the vicinity of Daang Kastila trail, may also be dangerous when increased steam emission is reactivated along existing fissures. Moreover, the public is also reminded that the entire Volcano Island is a Permanent Danger Zone (PDZ), and permanent settlement in the island is strictly not recommended.