Taal May Erupt Any Moment: Scientists Worried Due to Record-Breaking Gas Emissions

The Philippines' volcanology department warned that the Taal volcano might erupt at any time, citing record-breaking gas emissions, localized tremors, and rumblings from the top south of Manila.

In October 1994, volcanologists studying the concentration of radon gas in the soil on Volcano Island discovered an unusual six-fold rise in radon concentration. The magnitude 7.1 Mindoro earthquake, located approximately 50 kilometers (31 miles) south of Taal, off the coast of Luzon, struck 22 days later on November 15.

Detecting the Radon

A few days before the radon increase was detected, a typhoon had passed through the area, but no radon spike was detected when Typhoon Angela, one of the most severe storms to hit the area in ten years, traversed Luzon on almost the same path a year later.

As a result, typhoons were ruled out as a cause, and substantial evidence shows that the radon came from the tension buildup before the earthquake.

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