Mount Pinatubo alert status returns to “normal”
MANILA, Philippines – State volcanologists lowered Mount Pinatubo’s alert status to Level 0 from Level 1 on Thursday due to the “continuing decline” in activity.
Alert level 0 indicates normal condition, while alert level 1 means low level troubles.
The Philippine Institute of Volcanology and Seismology said that since July 1, 2021, there has been a drop in seismic activity in the volcano and a return to basic seismic parameters.
“This means that the observation parameters have returned to reference levels and that the volcano has returned to a period of rest,” he added.
Phivolcs noted that the frequency of volcanic earthquakes and the diffuse flux of carbon dioxide from Pinatubo Crater Lake have decreased.
The data also showed that the detected soil deformation is “probably of tectonic rather than volcanic origin”.
However, Pinatubo’s alert status can be increased again if an increase in any of the monitoring parameters occurs, Phivolcs said.
He warned against entering the Pinatubo crater area due to “permanent risks of rockfall, landslides and expulsions of deadly volcanic CO2”.
Last March, state volcanologists raised Alert Level 1 over Pinatubo due to persistent seismic activity.
Pinatubo last erupted on June 15, 1991. It was the second largest volcanic eruption of the 20th century. – Gaea Katreena Cabico