Kanlaon Volcano had 18 volcanic quakes —PHIVOLCS

Kanlaon Volcano had 18 volcanic earthquakes on Friday, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) said.

This included one volcanic tremor lasting 15 minutes long, PHIVOLCS said in its bulletin issued on Saturday.

The volcano, which straddles the provinces of Negros Occidental and Negros Oriental, also emitted ash on Friday which lasted for 15 minutes.

WATCH: Kanlaon Volcano emits ash from summit crater

Kanlaon Volcano also emitted 2,181 tonnes of sulfur dioxide on Friday.

Moderate plumes rose up to 200 meters from the crater as the volcano continues its degassing. The plumes drifted west and west-southwest.

PHIVOLCS said Kanlaon Volcano's edifice remains inflated.

Alert Level 3 (Intensified Unrest/Magmatic Unrest) remains in effect on Saturday at Kanlaon Volcano.

PHIVOLCS reiterated that the six-kilometer radius from the volcano's summit should be evacuated.

Likewise, flying aircraft close to the volcano is prohibited.

PHIVOLCS said Kanlaon Volcano poses hazards such as:

• sudden explosive eruption;
• lava flow or effusion;
• ashfall;
• pyroclastic density current;
• rockfall; and
• lahars during heavy rains.

—KG, GMA Integrated News