TAAL VOLCANO BULLETIN 01 December 2012 8:00 A.M. PDF Print
Friday, 30 November 2012 22:59

Taal Volcano’s (14.0000°N, 120.9833°E) seismic network recorded twelve (12) volcanic earthquakes during the past 24-hour observation period. Field measurements conducted on 27 November 2012 at the western sector of the Main Crater Lake yielded slight decrease in water temperature of 32.2°C from 32.5°C, a decrease in water level of 1.26 meters from 1.33 meters and increase in acidity of pH 2.78 from pH 2.87. Ground deformation survey (precise leveling) in the Volcano Island on 02-11 October indicated slight deflation compared with July 2012. GPS data for the period of February 2011 to October 2012 show no substantial changes in ground deformation recently, although the edifice is still slightly inflated compared to February 2011 baseline data. Carbon dioxide (CO2) emission at the Main Crater Lake increased to 720 tonnes per day on 27 November 2012 compared to 627 tonnes per day last 07 July 2012.         

Alert Level 1 remains in effect over Taal Volcano. This means that 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.

 

 

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