occurred on the same day. PHIVOLCS determined the cause of the eruptions to be hydrothermal activity beneath the volcano. People were advised not to enter the permanent danger zone. Further advisories were given to low-flying aircraft against the dangers of sudden phreatic eruptions, and to local residents near rivers and streams in case of lahar flows. There were also concerns that rains from Typhoon Noul could trigger lahars and mudslides near the mountain. However, after Noul recurved to the north, the threat did not materialize and the evacuees were permitted to return to their homes. On June 16, Mount Bulusan generated two volcanic eruptions with the first one recorded at 11:02am which lasted for 10 minutes producing a one kilometer high grayish steam and ash plume and accompanied by rumbling sounds. The second one was recorded at 11:20am which lasted for a minute producing only a small ash plume. On June 18, the volcano once again erupted but was not observed visually due to thick clouds covering the summit. Prior to the eruption, rumbling sounds was heard between 5:00am to 7:00am by residents of the village of Monbon in Irosin town. The next day, June 19, Bulusan erupted yet again at around 2:55pm producing a 1.5-kilometer high ash plume. June 2016 On June 10, almost a year after its last eruption, Mount Bulusan erupted again at 11:35am. The eruption lasted for five minutes and generated an ash plume measuring 6,562 feet or some 2,000 meters. According to PHIVOLCS, the eruption was phreatic in nature and had a shallow source, with the ash drifting northwest to the direction of Juban town. While the PHIVOLCS did not raise the alert level 1 in the volcano, it advised residents not to enter the four-kilometer permanent danger zone and warned pilots not to fly near the volcano. December 2016 On December 29, Mount Bulusan had a phreatic eruption, shooting a plume of ash about two kilometers high. It happened 2:40pm local time and lasted for about 16-minutes. The eruption prompted PHIVOLCS to raise Alert level 1 for the surrounding areas and remind the public not to enter the 4-kilometer radius permanent danger zone. May 2019 On May 6, PHIVOLCS reported that two volcanic earthquakes were recorded during the past 24 hours. Wispy emission of white steam-laden plumes from the active vents was observed. alert level 1 (abnormal) status remains in effect. July 2020 PHIVOLCS