I can't find any more info on that "volcano-like" eruption in India--very curious!
The Times of India reports that further examination by a team from the Geological Survey of India determined that the fiery phenomenon was due to a high-voltage current passing through the ground from an electric pole located on the hill.
They found that the extreme heat caused by the current melted silica stones, which appeared to spew as lava.
Two rockfall events and white steam plumes were observed in the last 24 hours at Mayon Volcano in Bicol, the Philippine Institute of Volcanology and Seismology (Phivolcs) said Monday.
Earlier this month, residents noted wells at the foot of the famous volcano have started drying up, which they believe to be another sign of restiveness from Mayon Volcano.
Also, they noted many animals such as snakes had been coming down from the volcano's higher areas.
Experts: Katla Not Erupting But Stay Away
Geologists flew over Mýrdalsjökull glacier, which covers the active volcano Katla, yesterday to investigate sudden glacial flooding in Múlakvísl river and Jökulsá river, reports RÚV.
“It is obvious that [the floodwater] is originating from Katla, but there is nothing that points to a major event,” said geophysicist Björn Oddsson.
Although glacial flooding in the area is not expected to be heavy, travellers and tour companies are being told to stay vigilant of sudden rises in water levels and are advised to keep their distance by going no further than Múlakvísl river.
“In large quantities sulphur pollution [rising from the glacial flood] can be dangerous and people can pass out from it if they venture too close,” geologist Gunnar B. Guðmundsson told Vísir.
LEGAZPI CITY, Philippines—The Philippine Institute of Volcanology and Seismology (Phivolcs) has raised the alert level over Mayon Volcano from one to two after it showed an evident intrusion of magma that may eventually lead to a larger eruption.
“An intrusion of magma is very evident,” volcanologist Eduardo Laguerta, who is based at Phivolcs’ Lignon Hill Observatory here, told the Inquirer.
A bulletin released by Phivolcs at 2 p.m. on Friday said visual observation showed the growth of a new lava dome, around 30 to 50 meters at the volcano’s summit crater. A lava dome is a pile or mound of lava that grows on the floor of an active crater.
Phivolcs’ instruments also showed a very slight swelling of the middle slopes of the volcano since the May 7, 2013, phreatic or steam-driven explosion of Mayon that caused the death of five climbers, including four foreign tourists and their Filipino guide.
Laguerta noted a sharp increase in the sulfur dioxide
Alert Level 0: No Alert.
Quiet. No eruption in the foreseeable future.
Alert Level 1: Abnormal.
Low level unrest. No eruption imminent.
Alert Level 2: Increasing Unrest.
Moderate unrest. Unrest probably of magmatic origin, could eventually lead to eruption.
Alert Level 3: Increasing Tendency Towards Eruption.
Relatively high unrest. Magma is close to the crater.
Alert Level 4: Hazardous Eruption Imminent.
Intense unrest. Hazardous eruption is possible within days.
Alert Level 5: Hazardous Eruption.
Hazardous eruption ongoing.
Mayon is the most active volcano in the Philippines having erupted over 48 times in the past 400 years. The first record of a major eruption was witnessed in February 1616 by Dutch explorer Joris van Spilbergen who recorded it on his log in his circumnavigation trip around the world. The first eruption of which there is an extended account 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 not as much compared to the 1766 eruption; Instead, the volcano was belching dark ash and eventually bombarded the town of Cagsawa with tephra that buried it. Trees were burned; rivers were certainly damaged. Proximate areas were also devastated by the eruption, with ash accumulating to 9 m (30 ft) in depth. In Albay, a total of 2,200 locals perished in what is considered to be the most lethal eruption in Mayon's history; estimates by PHIVOLCS list the casualties at about 1,200, however. The eruption is believed to have contributed to the accumulation of atmospheric ash, capped by the catastrophic eruption of Mount Tambora in 1815, that led to the Year Without a Summer in 1816.
This is the strongest earthquake measured in the region since 1996. As evidence of magma movement shallower than 10 km implies increased potential of a volcanic eruption, the Bárðarbunga aviation color code has been changed to orange. Presently there are no signs of eruption, but it cannot be excluded that the current activity will result in an explosive subglacial eruption, leading to an outburst flood (jökulhlaup) and ash emission. The situation is monitored closely.