Major eruption at Mount Sinabung, ash to 15 km a.s.l., Indonesia

– April 06, 2018

A major eruption took place at Mount Sinabung, Indonesia around 09:00 UTC on April 6, 2018 shooting ash up to 15 km (50 000 feet) above sea level. The Aviation Color Code was raised to Red. This is the second major eruption of this volcano within 2 months.

The eruption produced numerous pyroclastic flows, reaching 3.5 km (2 miles) to the east and southeast.

The Darwin VAAC reported two columns of volcanic ash. The first to 15 km (50 000 feet) moving NNE, and the second to 7.3 km (24 000 feet) moving SW.

Today’s eruption is comparable to a high impact eruption of February 19, 2018. At the time pyroclastic flows traveled 3.5 km (2.1 miles) and 4.9 km (3 miles) from the summit and ash plume reached an altitude of 16.7 km (55 000 feet) above sea level.

Powerful eruption at Mayon volcano, heavy ashfall and zero visibility, Alert Level 4

– January 22, 2018

A powerful eruption took place at Mayon volcano, Philippines around 04:45 UTC on Monday, January 22, 2018 (12:45 local time), producing a column of ash that rose up to 7.6 km (25 000 feet) above sea level. At 05:10 UTC, the Tokyo VAAC reported ash cloud up to 12.5 km (41 000 feet) a.s.l. and corrected it within 30 minutes. Increased activity at the volcano forced authorities to raise the Alert Level from 3 to 4 (hazardous eruption imminent). The scale goes up to 5.

Heavy ashfall was reported in communities around the volcano and as far as Ligao City, some 35 km (21.7 miles) from Legazpi City. Albay Governor said zero visibility has been reported in parts of Guinobatan, Ligao, and Camalig after the major ash eruption, advising everyone to wear their face masks and to stay indoors, especially those in the 3rd district of Albay.

Classes in all public and private schools across the entire province have been suspended.

Volcanologist Ed Laguerta said the eruption lasted for some 8 minutes and generated pyroclastic flows towards Camalig and Guinobatan towns southwest of the volcano.

Strongest eruption since 2012 at Fuego, alert raised, pyroclastic flows, ashfall reported

– May 05, 2017

Guatemala’s Fuego volcano erupted at 13:15 UTC on May 5, 2017, producing pyroclastic flows and ejecting thick volcanic ash cloud to an estimated altitude of 5 km (16 405 feet) above sea level. INSIVUMEH is describing it as one of the strongest eruptions in recent years, recommending CONRED to raise the alert level to Orange.

In a special bulletin released 17:00 UTC on May 5, INSIVUMEH said volcanic ash cloud is moving more than 50 km (31 miles) to the south, southwest and west, generating ashfall in San Pedro Yepocapa, Morelia, Santa Sofía, El Porvenir, Palo Verde and others on this side, like Santa Lucia Cotzumalguapa, Siquinala, San Andres Osuna, Chuchu and La Reunión.

Ash is being produced by pyroclastic flows down the Trinidad, Las Lajas, Ceniza and Santa Teresa drainages.

This is the strongest eruption since 2012, INSIVUMEH said and added it forced the evacuation of the village of Sangre de Cristo (population 300), located on the west flank.

The agency warned that large quantities of volcanic material are being deposited, raising a threat of lahars in the coming days.

Sinabung volcano (Sumatra, Indonesia): elevated activity, frequent pyroclastic flows



Volcano Discovery – November 1, 2016

The eruption of the volcano continues, but has again entered a phase of increased activity since a few days ago: a new lava lobe, which has been growing since around 20 October, is now being destroyed by an ongoing series of frequent small to moderate pyroclastic flows that affect the southeastern and eastern slopes.

At the same time, the volcano has been producing sometimes comparably strong vertical explosions. This suggests that the internal supply of fresh and gas-rich magma is currently elevated (compared to the average of the past months when the volcano was mostly calmer.

During a 6 hours interval this afternoon, the volcano observatory reported one explosion and 7 pyroclastic flows on the east-southeastern flank with run-out lengths of 1500-3500 m, and associated ash plumes rising 800-1500 m high. The larger of the pyroclastic flows are coming dangerously close to, and again threatening areas which have still been being used and visited by local farmers and others (despite being well inside the official exclusion zone). It can only be hoped that no new accidents occur.

Phivolcs warns of ‘big’ Mayon eruption in coming days



Rhaydz B. Barcia  – September 08, 2016

LEGAZPI CITY, Philippines – The Philippine Institute of Volcanology and Seismology (Phivolcs) has warned of a possible “big” Mayon volcano eruption in the coming days.

“Phreatic explosion may happen anytime but a big explosion is expected in the coming days,” said Philvolcs resident volcanologist Eduardo Laguerta.

Laguerta cited “abnormal activity” similar to what happened prior to the Mayon eruption in 1984.

The 1984 Mayon eruption is classified as a Vulcanian-type eruption which involves relatively small but violent explosions of thick lava producing columns of ash, gas, and occasional pyroclastic flows.