Government volcanologists has warned disaster authorities to brace for more explosive fireworks as Mt. Mayon’s intense activity might turn into full-blown eruption within the next hours or days.
The Philippine Institute of Volcanologists (Philvocs) even raised the volcano’s alert status to Level 4, meaning hazardous explosive eruption is imminent.
Philvocs chief Renato Solidum , during the Provincial Disaster Coordinating Council (PDCC) emergency meeting on Sunday, said the activity of the mountain grew more intense as volcanic quakes, particularly harmonic tremors, sulphur gas and lava flows increased.
Solidum said “with the increasing and persistent tremor of low frequency type or harmonic tremors we can expects for more explosive eruption to happen once the volcano erupts in the coming days,”
The volcano felt 462 volcanic quakes and tremors in the past 24 hours, a large number of which were recorded harmonic in kind by seismic instruments.
Advancing lava flow has now reached approximately 4.5 kilometers downslope from the crater along Bonga Gully.
Sulphur Dioxide (SO2) gas cough up by the volcano increased from 2,034 ton per day (t/d)on Saturday to 7,024 on Sunday.
Phivolcs scientists closely monitor critical events like the surge in harmonic tremors since this would be a determining period where two possible scenarios might occur.
Solidum presented two scenario to take place in the event the volcano erupts, one scenario is the eruption would be similar to the 2006 event where a quiet eruption occurred as manifested by continuous lava emission while the second, the eruption would be an explosive patterned to that of the 1984, 1993 or 2000 eruptions.
“The 2006 eruption was a quite eruption exhibited by lava flow that lasted for two months and spawned some 52 million cubic meters of volcanic materials,” Solidum said.
Solidum , however, expected Mayon volcano eruption to be different from the 2006 eruption, simply because the volcano was presently manifesting increasing tremors and quakes which were not present in 2006.
He said a explosive hazardous type of eruption either a Plenian or Strombolian type might happen.
He said hazardous eruptions involved events such as series of pyroclastic explosion, sending ash columns and volcanic materials flows into the air kilometres high from the crater, lava flows, rock falls producing secondary explosions.
These events would always affect the six km Permanent Danger Zones and up to the 7-km extended danger zones in the southeast and northern part of the volcano, Solidum said
The aerial survey conducted on Saturday morning indicated that lava oozed out extensively from the crater that might flow towards the areas of Padang and in Sto Domingo.
Meanwhile, Albay Gov. Joey Salceda, PDCC chair, said following the calibrated response strategy and the on-step ahead disaster response measure, preparation had been in place in anticipation for the raising of Alert Level 5.
He said the forced evacuation and the imposition of a 24-hour curfew in the permanent and extended danger zones was a calibrated success with the evacuation of 8,637 families or 40,991 people living in 30 villages considered as high risk areas around the volcano.
Salceda said “we have somewhat exceeded the preemptive evacuation target may be because of the willingness of some residents and the five kilograms per day per family subsistence seems to be making traction.”
Salceda said some P300 million would be needed to sustain the evacuees in case Mayon volcano continued to erupt in the coming four months.
Earlier, Salceda said that the province was running low on calamity funds, with only 18 days to sustain the disaster operation. But he said “we’re still capable of supporting the needs of the evacuees even if we are spending P1 million a day to feed our people affected by Mt. Mayon.”
Based on the third rapid health assessment since Dec 14, health concerns that emerged in various evacuation camps were colds with fever. Four cases of conjunctivitis or sore eyes were also registered in areas like Tabaco.
While it is an expected scenario, the Albay Health Emergency Management looked into the deployment and field performance of AHEM personnel. The “colds with fever” were given medication while the “sore eyes” were put in isolation and similarly given medication.
The AHEM units maintain health stations on a 24/7 in every evacuation center.
The Department of Health distributed some 50,000 face masks to various municipal and health units across the province affected by ash falls.
Provicial Health Office also assured that there was enough supply from existing and emergency purchase of P1.8-million worth of medicines and other health supplies.
Unicef is sending medicines through CHD V – 1,000 packs. amoxycillin , Fe+folic 10000 packs , IEHK2006 kit, basic, IEHK20006 kit, new form oral rehydrate salts ILs/CAR0 10×100 and paracetamol 500mg 1000 packs.
The PDCC is working out on clean water and sanitation concerns of evacuation centers, which include sustained water supply from Legazpi Water District; repair of all faucets; installation of 24 portalets.
The Local Water Utility Administration (LWUA) has provided four tank lorries for water distribution in case of disruption; and Unicef provided 1,000 family water kits and 1,000 community water kits .
The PDCC also worked out on the putting up of 24 drums for bathing / washing water; a ready water purifiying machine that has a capacity of 30,000 liters per hour.
It also asked the Department of social Welfare and Development for the supply of 5,000 water jugs.
Based on the daily inspection of evacuation centers, there is a need for bed mattings and blankets given the cool weather.
Social Welfare Secretary Esperanza Cabral has prepositioned 1,700 blankets at the NAVFORSOL and 1,400 mats.
The PDCC will accelerate the human intervention approach in dealing with evacuees considering the boredom and discomforts that might be experienced specially this Christmas season.
Salceda said the Department of Health and DSWD would take care of the pyschosocial needs of the evacuees, specially the children. Among the activities lined up are the holding of film showings, feeding programs, parlor games, sports, arts, poetry reading, singing and poster making contest including concerts. (PNA)
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