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TAAL VOLCANO BULLETIN, 03 August 2011, 8:00 A.M. PDF Print
Wednesday, 03 August 2011 07:13

Taal Volcano’s (14.0000°N, 120.9833°E) seismic network detected one (1) volcanic earthquake during the past 24 hours. Field measurements conducted yesterday at the western sector of the Main Crater Lake yielded slightly changed water temperature of 32.8°C, water level increase of 1.08 meter from last week’s 0.81 meter and more acidic pH of 2.75 from last week’s 2.91.  Minimal bubbling activity was observed at the center of the Main Crater Lake.  Ground deformation survey (precise leveling) on the Volcano Island last 21 - 28 July 2011 indicated that the volcano edifice is slightly deflated compared with the 01-10 June 2011 survey. Carbon dioxide (CO2) emission recorded on 27 June 2011 at the Main Crater Lake was 1,821 tonnes/day above background levels.

Taal Volcano’s status remains at Alert Level 1, meaning hazardous eruption is not imminent. The public, however, is reminded that the Main Crater should be strictly off-limits because sudden steam explosions may occur and high concentrations of toxic gases may accumulate. The northern portion of the Main Crater rim, in the vicinity of Daang Kastila Trail, may also become hazardous when steam emission along existing fissures suddenly increases.  Furthermore, the public is also reminded that the entire Volcano Island is a Permanent Danger Zone (PDZ), and permanent settlement in the island is strongly not recommended.