Tuesday morning when into steam explosion from it’s summit, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) already put and raise as in Alert level 1 for Kanlaon Volcano in Canlaon City, Negros Oriental.

According to Philvocs, “At 9:55 P.M. yesterday (November 23, 2015), a steam explosion from Kanlaon’s summit crater occurred for approximately 8 minutes based on visual observation. The event was recorded by the Kanlaon Volcano seismic network as an explosion signal beginning at 9:30 P.M. and lasted 30 minutes,”

The alert level 1 is define as “is at abnormal condition and has entered a period of unrest.” Its steam explosion had reached a 1 to 1.5 kilometer-high ash plume just above the summit and now slowly drifting toward the southwest. The audible rumbling can be heard from Sitio Mananawin and Sitio Upper Pantao in Barangay Pula, Canlaon City.

During the past week, there were four volcanic earthquakes, but after some explosion, they also recorded a lasted for five hours volcanic tremor.

Phivolcs continuously reminds people to avoid entering the four-kilometer radius Permanent Danger Zone due to possibilities of “sudden and hazardous steam-driven or phreatic eruptions.”