Phivolcs reports 'low-level activity' in Taal Volcano

Metro Manila (CNN Philippines, June 2) — The Philippine Institute of Volcanology and Seismology (Phivolcs) reported an "ongoing low-level activity" in Taal Volcano and asked the public to take precautions.

The agency said since 6:35 a.m. on Friday, "a relatively weak and shallow but continuous volcanic tremor" has been recorded by all 15 seismic stations of the Taal Volcano Network.

In an advisory, Phivolcs said there has been a number of indications that "shallow hydrothermal activity" is taking place, which is "driven by a new phase of magma degassing."

It also noted an upwelling of volcanic fluids, increased thermal anomalies, and a slight increase in sulfur dioxide degassing.

Phivolcs reminded the public that Taal volcano is still under Alert Level 1, which means the volcano is still in abnormal condition and that the threat of eruption remains.

The agency said the Alert Level 2 may be raised if the low-level activity worsens or if monitoring shows increasing unrest.

The agency strongly advised people not to go to Taal Volcano Island and Taal's Permanent Danger Zone, especially near the main crater and the Dang Kastila fissure.

It also urged the public to observe precautions "due to ground displacement across fissures, possible ash fall and minor earthquakes."

Pilots, meanwhile, are advised to avoid flying close to the volcano, as Phivolcs warned that airborne ash and ballistic fragments from sudden explosions may endanger aircraft.