On June 21, 2020, the Kanlaon volcano showed some signs of increased unrest. By June 22, 2020, the Kanlaon volcano's activity continued, with a series of tectonic earthquakes ranging from M3.2 to M4.7. A total of 278 earthquakes was observed for a 72-hour period (from June 21, 8AM - June 24, 8AM), possibly related to the magmatic activity underneath the volcano. Earthquakes continued, with steam and fumarolic activity rising 200-300 meters above. PHIVOLCS reminded the public to stay away to the 4-km PDZ (Permanent Danger Zone) around the volcano, as abnormal conditions and sudden phreatic explosions might occur.