Sat Mar 23, 2024 11:33 pm by globalturbo
Volcano Uptick! The Philippine Institute of Volcanology and Seismology reports the Mayon Volcano in Albay exploded two times yesterday
The Mayon Volcano in Albay exploded two times yesterday morning, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported as it warned residents to stay out of the six-kilometre radius permanent danger zone.
The phreatic or ash explosions occurred at 8:17 a.m. and 8:28 a.m. that generated grayish to grayish white ash plumes 600 meters and 200 meters above the crater, respectively based on Phivolcs' latest bulletin.
Phivolcs director Renato Solidum said the explosions were possibly triggered by the sudden degassing of magma inside the volcano's chamber.
Mayon remains under Alert Level 2 after its full-blown eruption episodes that started January and simmered down in March early this year.
Solidum said the explosions would not warrant yet the raising of its alert level to three.
"Not yet.
These minor ash explosions are still within Alert Level 2 parameters," he stressed.
This means that Mayon is at a moderate level of unrest, Phivolcs said.
Before the events, Phivolcs said Mayon's seismic monitoring network recorded a volcanic earthquake in the past 24 hours.
"Fair crater glow from the summit could be (also) observed at night," Phivolcs said.
It also warned that people residing close to the declared danger zones to observe precautions due to rockfalls, pyroclastic density currents and ashfall.
"Active stream or river channels and those identified as perennially lahar-prone areas on all sectors of the volcano should also be avoided especially during extreme weather conditions when there is heavy and prolonged rainfall," Phivolcs advised.
Volcano Uptick! Indonesia's deadly Anak Krakatau volcano eruption activity increasing with 22,000 still missing from tsunami: Flights re-routed
javier-biologiaalcubo.blogspot.com
All flights around Indonesia's Anak Krakatau volcano have been re-routed and the alert level has been raised to the second-highest possible after a series of eruptions spewed out lava.
A five-kilometre exclusion zone around the volcano has also been imposed, the BBC reported on Thursday.
Indonesia's Disaster Management Agency (BNPB) said the alert level has been raised from two to three because of fluctuating eruptions.
"The volcanic activity of Anak Krakatau continues to increase," BNPB said, citing data from the Volcanological Survey of Indonesia.
Eruption activity is still ongoing.
The danger zone has been extended from two kilometres to five kilometres... people and tourists are prohibited from carrying out activities within a five-kilometre radius, it added.
On December 22, the volcano triggered a tsunami which hit the Sunda Strait coasts, killing over 400 hundred people while more than 22,000 are still missing.
It is believed that the volcanic activity from Anak Krakatau set off undersea landslides which in turn generated the killer waves.
Volcano Uptick! Mount Etna region declared a state of emergency as experts expect another earthquake after the 4.8 magnitude earthquake on Wednesday
Etna, one of the world's most active volcanoes and the biggest in Europe, is threatening to cause a dangerous lava flow and possibly another earthquake, experts warned on Thursday as the region declared a state of emergency.
Etna erupted on Christmas Eve, spewing giant clouds of smoke and ash onto nearby cities, towns and vineyards in the busy coastal corridor of eastern Sicily.
The eruption was followed Wednesday by a 4.8 magnitude earthquake that caused extensive damage, cracking homes, churches and roads.
About 1,000 tremors were felt, La Stampa newspaper reported, and thousands of people were sleeping on the streets.
No deaths were reported.
About 600 people were declared homeless as a result of the damage.
Italy's two political leaders, Deputy Premier Luigi di Maio, the leader of the 5-Star Movement, and Deputy Premier Matteo Salvini, the leader of the League party, were expected to visit the hard-hit area Thursday.
The region of Sicily called a state of emergency.
There's a danger that Etna could erupt at a lower elevation, causing a lava flow threatening inhabited areas.
As of Thursday, the volcano appeared to be calming down.
Boris Behncke, a volcanologist at the Etna Observatory at Italy's National Institute of Geophysics and Volcanology, said on Wednesday night through his Facebook page that there was little left of Monday's lava eruption and that seismic activity was calming.
Still, there's always a lot of uncertainty about what is happening in the belly of this volcano.
Behncke said it was possible this eruption could become more active again and even for a lava flow to open up at a lower elevation.
About 1 million people live on the flanks or in the shadow of the volcano, many of them in Catania, Sicily's second-largest city.
Catania is an ancient city and many of its buildings are constructed from black lava stone.
It lies only about 18 miles from Etna's summit.
Etna is one of the most monitored volcanoes in the world, in no small part because of its potential dangers.
Scientists say the volcano is slowly being pulled into the Ionian Sea and this gradual movement likely will cause more eruptions and earthquakes, similar to those of this week.
The grimmest scenario is a catastrophic collapse of the volcano's southeast flank, but scientists say there is no evidence of that occurring any time soon.
Thanks to: http://www.thebigwobble.org
