Claim: Philippine volcano trembles more, spews lava half-mile high.
Verdict: SUPPORTS

Retrieved passages:
title: Mayon
text: an increasing lava flow in the southern portion of the volcano and an increase in sulfur dioxide emission to 750 tonnes per day. Almost 460 earthquakes in the volcano were monitored. In the border of the danger zone, rumbling sounds like thunder were heard. Over 9,000 families (44,394 people) were evacuated by the Philippine government from the base of the volcano. No civilian was permitted within the 8 km danger zone, which was cordoned off by the Philippine military who actively patrolled to enforce the "no-go" rule and to ensure no damage or loss of property of those evacuated. Alert

title: Mount Bulusan
text: generally known for its sudden steam-driven or phreatic explosions. It has erupted 15 times since 1885 and is considered as the 4th most active volcano in the Philippines after Mayon, Taal, and Kanlaon. There are evacuation procedures in place for parts of the peninsula; the farms nearest the volcano are to be evacuated, and many of the village schools will be closed if it is considered possible that a more destructive eruption could occur. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) declared Alert Level 1 on March 19, 2006 after it recorded increased seismic unrest. On June 8, 2006,

title: Taal Volcano
text: at first took for loud thunder. The illusion was heightened when great streaks of lightning were seen to illumine the southern sky. Those who investigated further, however, soon learned the truth. A huge, fan-shaped cloud of what looked like black smoke rose to a great height. It was crossed and crisscrossed with a brilliant electrical display, which the people of Manila at first took for lightning. This cloud finally shot up in the air, spread, then dissipated, and this marked the culmination of the eruption, at about 2:30 a. m. On Volcano island, the destruction was complete. It seems that

title: Mayon
text: as well. The danger zone was expanded up to 9 kilometers despite remaining at Alert Level 4 and residents from the expanded danger zone were evacuated. On January 24, 2018, column of ashes and lava fountains were spewed again with an interval of 4 to 5 hours. Fire bombs and rockfalls could also be observed and sounds from the eruptions could be heard. Classes remained suspended in some places in Albay. On January 25, 2018, column of ashes and lava fountains were spewed again. Fire bombs and rockfalls could also be observed and sounds from the eruptions could be heard.

title: 2002 Mindanao earthquake
text: Tectonic activity in the country includes both earthquakes and volcanic eruptions. Because of subduction of the Eurasian Plate to the west, volcanic activity occurs along the Manila Trench and the Sulu Trench, often of powerful caliber. 13 percent of recorded eruptions in the Philippines have been deadly, as the country is responsible for the world's most deaths in volcanic eruptions. Seismicity as well has been powerful: in the last 50 years, more than half of the country's major earthquakes have reached magnitude 7.0 or greater. The earliest known major shock was in 1976, killing some 8,000 people. The Mindanao event

title: Mayon
text: When an oceanic plate subducts, it releases water into the overlying mantle. The water lowers the melting point of the mantle and triggers melting that generates magma. The magma rises and erupts at the surface at a volcano like Mayon. Mayon is the most active volcano in the Philippines, erupting over 47 times in the past 500 years. The first eruption for which an extended account exists was the six-day event of July 20, 1766. The most destructive eruption of Mayon occurred on February 1, 1814 (VEI=4). Lava flowed but less than the 1766 eruption. The volcano belched dark ash

title: Mayon
text: whole province of Albay. By evening, lava fountains were spewed from the crater with pyroclastic flows and ash plumes. Lava bombs and rockfalls could also be observed and rumbling sounds from the eruptions could be heard. The eruption type was classified as a Strombolian eruption. On January 23, 2018, Mayon spewed 300 to 500 meter lava fountains and ash plumes with a 4 to 5 hour interval. Lava bombs and rockfalls could also be observed and sounds from the volcano could be heard. Classes in all levels, both public and private were still suspended, work in some places were suspended

title: Camiguin de Babuyanes
text: volcano and a boiling spring is located near sea level on the western flank of the volcano (magas-asok). The Philippine Institute of Volcanology and Seismology (PHILVOCS) lists Camiguin de Babuyanes as one of the active volcanoes in the Philippines. All volcanoes in the Philippines are part of the Pacific ring of fire. An eruption was recorded around 1857. It was reported as phreatic and possibly partly submarine. In 1991, there were reports of volcanic activity but instrumental investigations showed no sign of unusual volcanic activity, such as intense fumarolic activity, felt earthquakes, fissuring at the volcano’s slopes, or smell of

title: Geography of the Philippines
text: a series of seismic faults that produce several earthquakes per year, most of which are not felt. Many volcanoes in the country are active, the most recent eruption being that of Mount Pinatubo on Luzon in 1991. Mount Mayon is another of the active volcanoes and has the world's most perfectly shaped cone. Mayon has a violent history of 47 eruptions since 1616 and another violent eruption is currently feared. Taal Volcano, also located on Luzon, is one of the Decade Volcanoes. Most of the islands used to be covered by tropical rainforests. However, illegal logging has reduced forest cover

title: Musuan Peak
text: Musuan Peak Musuan Peak or Mount Musuan , also known as Mount Calayo (, literally "Fire Mountain") is an active volcano on the island of Mindanao in the Philippines. It is south of the city of Valencia, province of Bukidnon, and southeast of Cagayan de Oro City. Musuan is a lava dome and tuff cone. It has an elevation of asl, and a base diameter of . The Philippine Institute of Volcanology and Seismology reports that Musuan erupted in 1866 and 1867, but the Smithsonian Institution's Global Volcanism Program records another eruption, possibly phreatic, that "burned everything around it." The

title: Ring of Fire
text: flank. Some minor volcanic activity may occur in the next few years. The 1991 eruption of Mount Pinatubo is the world's second-largest terrestrial eruption of the 20th century. Successful predictions of the onset of the climactic eruption led to the evacuation of tens of thousands of people from the surrounding areas, saving many lives, but as the surrounding areas were severely damaged by pyroclastic flows, ash deposits, and later, lahars caused by rainwater remobilising earlier volcanic deposits, thousands of houses were destroyed. Mayon Volcano is the Philippines' most active volcano. It has steep upper slopes that average 35–40° and is

title: Malinao Volcano
text: mountain might be reactivating. The tremors detected were ranging from 1 to 5 in intensity. There was a minor phreatic explosion in the Naglagbong pool area in Tiwi on July 29, 1980, ejecting mud and rocks up to , reaching in height and distances up to . One person was injured and two buildings were damaged by the explosion. Prior to the event, as early as July 6, the area was experiencing unusual microseisms recorded at seismic station of the Commission on Volcanology (COMVOL) - the predecessor of PHIVOLCS - in the area. Geysering was also observed on the pool,

title: Kanlaon
text: were reported in some barangays near Kanlaon Volcano. On 2 January, people in Hinigaran got sick. Many suffered from a respiratory illness with cough and flu-like symptoms. In March 29 at 6:20 pm, Kanlaon erupted for 12 minutes which produced a volcanic plume 1500 meters above the crater and a "booming sound" was heard in some barangays near the volcano. According to the police department of Canlaon City, several fire balls, which were coming from the crater of the volcano, started to flow following a booming sound and causing a bush fire. PHIVOLCS issued alert level number 1. No casualties

title: Mount Pinatubo
text: forecasts of an eruption by scientists from the Philippine Institute of Volcanology and Seismology and the U.S. Geological Survey enabled people living near the volcano to quickly evacuate to safer distances, saving at least 5,000 lives. A small blast at 03:41 PST on June 12 marked the beginning of a new, more violent phase of the eruption. A few hours later the same day, massive blasts lasting about half an hour generated big eruption columns, which quickly reached heights of over and which generated large pyroclastic surges extending up to from the summit in some river valleys. Fourteen hours later,

title: Stratovolcano
text: in 1991 provide examples of stratovolcano hazards. On June 15, Mount Pinatubo spewed an ash cloud into the air and produced huge pyroclastic surges and lahar floods that devastated a large area around the volcano. Pinatubo, located in Central Luzon just west-northwest from Manila, had been dormant for 6 centuries before the 1991 eruption, which ranks as one of the largest eruptions in the 20th century. Also in 1991, Japan's Unzen Volcano, located on the island of Kyushu about east of Nagasaki, awakened from its 200-year slumber to produce a new lava dome at its summit. Beginning in June, repeated

title: Camiguin
text: largest eruption occurred the morning of December 4, 1951. The volcano unleashed lava flows, poisonous gases, and pyroclastic flows destroying nearly 19 squares kilometers of land, particularly in Mambajao. All in all, over 3,000 people were killed. Before the eruption of Mt. Hibok-Hibok in 1951, the population of Camiguin had reach 69,000. After the eruption, the population was reduced to about 34,000 due to massive out-migration. A disastrous typhoon hit the province in the dawn of November 7, 2001. The tropical storm named "Lingling" (local name "Nanang") brought "buhawi" (torrential downpours) on the mountains causing multiple massive mudslides killing about

title: Jolo Group of Volcanoes
text: the Regions of the Philippines. The figure-eight shaped island is about at its longest, about at its widest and about at the narrowest section. The volcanic island is dotted with cinder cones, tuff cones, pyroclastic cones, maars and crater lakes. The highest point in the island is Mount Tumatangas with an elevation of asl. Bud Dajo has an elevation of asl. Guimba, Matanding, and Sungal, are some other volcanic cones near Bud Dajo. Four crater lakes are located on the island: Lake Seit, Lake Panamao and Lake Timpuak and Sani Crater Lake. Solfataric activity is found at Seit Lake. On

title: Mayon
text: of unrest could lead to more ash explosion or eventually to hazardous magmatic eruption. At 8 pm on December 14, 2009, after 83 volcanic quakes in the preceding 24 hours and increased sulfur dioxide emissions, PHIVOLCS raised the Alert status to Level 3. Early in the morning of December 15, 2009, a moderate ash explosion occurred at the summit crater and "quiet extrusion of lava" resulted in flows down to about from the summit. By evening, Albay Province authorities evacuated about 20,000 residents out of the danger zone and into local evacuation centres. About 50,000 people live within the zone.

title: Mayon
text: tendency towards a hazardous eruption) after 3 phreatic eruptions and 158 rockfall events were recorded. The summit crater also exhibited a bright glow signifying the growth of a new lava dome and the start of lava flows towards its slopes. On January 16, 2018, the province of Albay declared a state of calamity as lava flows reached the limits of the 6 kilometer evacuation zone. On January 22, 2018, Alert Level 4 was raised after Mayon spewed a 3 kilometer tall ash column at around 12:45 PM. Classes in all levels in private and public schools were suspended in the

title: Mount Bulusan
text: 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 5:00 AM to 7:00 AM by residents of the village of Monbon in Irosin town. The next day, June 19, Bulusan erupted yet again at around 2:55 PM producing a 1.5 kilometer high ash plume. On June 10, almost a year after its last eruption, Mount Bulusan erupted again at 11:35 AM. The eruption lasted for five minutes and generated