A lava-related collapse generated a pyroclastic density current (PDC) or “uson” at Mayon Volcano’s southwestern slopes on Wednesday morning, May 13, according to the Philippine Institute of Volcanology and Seismology (Phivolcs). (Video courtesy of PHIVOLCS-DOST | FB)<br /><br />READ: https://mb.com.ph/2026/05/13/lava-effusion-with-collapse-fed-pyroclastic-flow-observed-anew-at-mayon-volcano<br /><br />Subscribe to the Manila Bulletin Online channel! - https://www.youtube.com/TheManilaBulletin<br /><br />Visit our website at http://mb.com.ph<br />Facebook: https://www.facebook.com/manilabulletin<br />Twitter: https://www.twitter.com/manila_bulletin<br />Instagram: https://instagram.com/manilabulletin<br />Tiktok: https://www.tiktok.com/@manilabulletin<br /><br />#ManilaBulletinOnline <br />#ManilaBulletin <br />#LatestNews
