Mount Bulusan

Bulusan, or Bulusan volcano Mount Bulusan, or is the southernmost volcano on the island of Luzon in the Philippines. It is located in the province of Sorsogon in the Bicol region, 70 kilometers southwest of the Mayon volcano, about 250 kilometers southeast of the capital Manila. The mountain is part of the park since 1934 Bulusan Volcano National.

Construction

The Bulusan is a 1565 -meter-high stratovolcano with a base diameter of 15 kilometers. It is located in the northeast with a caldera about 11 km in diameter, which was created about 40,000 years ago. The city Irosin located south of the caldera.

Bulusan has four craters and four hot springs. Crater No. 1, known as "Black Bird Lake ", has 20 meters in diameter and 15 meters deep. The oval crater 2 is 60 x 30 meters in size with a depth of 15 meters. Crater number 3 has about 90 meters in diameter and is about 20 meters deep crater and number 4 in the northeast originated during the eruption in 1981. Below the crater 4 There are still a 100 -meter-long gap, which is 5-8 meters wide.

Eruptions

Bulusan has erupted 15 times since 1886.

The Philippine Institute of Volcanology and Seismology ( PHIVOLCS ) said the alert level 1 on 19 March 2006, after amplified seismic activity were detected. On 8 June 2006 Alert 2 was proclaimed after ash also left the volcano. The day after the ash cloud destroyed several houses in the nearby town of Casiguran, 5 kilometers north of the volcano and reached even the city of Sorsogon, 20 kilometers north of Bulusan. On 13 June 2006, an additional crater caused by smaller explosions.

On 8 April 2007, the volcanic ash bumped up to five kilometers into the air. Scientists explained this as a harbinger for other activities. The inhabitants of the town of Casiguran at the foot of the volcano were alerted ..

The penultimate outbreak occurred on 31 July 2007 and lasted until October 2007. 's Second recent eruption happened in November 2010 .. Approximately 2700 residents of the cities Irosin and Juban had to flee, other villages had to be evacuated. The youngest-ever outbreak took place on 21 February 2011, the volcano spewed a three thousand meter high ash column. 1,200 residents had to be evacuated in extremely poor visibility.