Philippines raises 火山 警報 level after 溶岩 flow
By Enrico Dela Cruz
MANILA, Jan 14 (Reuters) - The Philippines raised the 警報 level at its rumbling Mayon 火山 to "level 3" on Sunday after （悪事，秘密などを）発見するing 溶岩 flow and 指示，表示する物s of activity that could lead to 爆発s of magma.
More than 900 families have been 避難させるd from villages 近づく Mayon, a tourist attraction because of its 近づく-perfect 反対／詐欺 形態／調整, に引き続いて a "steam-driven 爆発" on Saturday.
当局 advised people to cover their noses and mouths with a damp, clean cloth or dust mask if they were exposed to ash from the 爆発s, and said 航空機 must 避ける 飛行機で行くing の近くに to the 火山's 首脳会議.
Two 類似の "phreatic" 爆発s occurred at the 火山 in central Albay 州 on Sunday, 抑えるのをやめるing more ash.
"Mayon's 首脳会議 噴火口，クレーター is now 展示（する）ing 有望な 噴火口，クレーター glow that signifies the growth of a new 溶岩 ドーム and beginnings of 溶岩 flow に向かって the southern slopes," the Philippine 学校／設ける of Volcanology and 地震学 (Phivolcs) said.
Phivolcs 長，指導者 Renato Solidum said the 火山 appeared 予定 for another major 爆発 as it has been 陳列する，発揮するing 異常な behaviour since late last year.
"警報 level 3 is what we considered 批判的な, 4 is when 爆発 is 切迫した, and 5 is 爆発 in 進歩," Cedric Daep, 長，率いる of the Albay 地方の 災害 危険 削減 and 管理／経営 Office, said in a 無線で通信する interview.
Mayon's most destructive 爆発 was in February 1814, when 溶岩 buried a town and killed 1,200 people. It last 爆発するd in 2014, 噴出するing 溶岩 and 軍隊ing thousands of people to 避難させる.
The 最新の 爆発s began on Saturday, 抑えるのをやめるing ash, 激しく揺するs and sulphur ガス／煙s and …を伴ってd by rumbling sounds.
Phivolcs had earlier raised the 警報 to "level 2", 説 the activity was "probably of magmatic origin, which could lead to more phreatic 爆発s or 結局 to 危険な magmatic 爆発s."
Since Saturday's first 爆発, Phivolcs said it had 記録，記録的な／記録する ed 158 rockfall events and 勧めるd people to stay away from a 6-kilometre (3.7 mile) 半径 永久の Danger Zone and a 7-km 拡大するd Danger Zone on the 火山's southern 側面に位置する.
地滑りs and sudden 爆発s or a ドーム 崩壊（する） that may 生成する 危険な 火山の flows are also possible, it said.
People within the slope of the 火山, but outside the danger zones, were told to take 予防の 対策 against possible roof 崩壊（する）s 予定 to 蓄積するd ash and rainwater, and "lahar", an Indonesian 称する，呼ぶ／期間／用語 for a 火山の mudflow.
And the 地方の 政府 一時停止するd Monday's classes from 幼稚園 to 上級の high school in some areas. (報告（する）／憶測ing by Enrico dela Cruz; 付加 報告（する）／憶測ing by Manuel Mogato; Editing by Simon Cameron-Moore and Alexander Smith)
