View from the W rim of Kīlauea Caldera just before 5 a.m. HST on Dec. 21, 2020. The main fountain height is ~18 m (59 ft) and with two other fissures feeds a growing lava lake at the base of Halemaʻumaʻu crater. Volcanic gas continues to travel downwind, southwest of the vents. (USGS:Public domain.)
ハワイ火山観測所（Hawaiian Volcano Observatory）は、20日（日）21:30過ぎにハワイ島のキラウエア火山で新たな噴火活動を確認したことを発表した。
JTB“海外オンラインツアー半額キャンペーン”
噴火が確認されたのはハレマウマウ火口内の3つの亀裂のうちの2つで噴火活動を見せているとのこと。一時火山警報を発出したが，その後火山注意報にレベルを引き下げた。
ハワイ火山観測所によれば、キラウエア火山では過去数週間にわたり活動の増加が確認されていたが、噴火することは予想していなかったらしい。但し、噴火はクレーター内に限定あれているため、2018年の噴火のように周辺住民の避難などは今のところ必要ないとのこと。
Aerial view of the Kīlauea summit eruption from a Hawaiian Volcano Observatory overflight at approximately 11:20 a.m. HST. The two active fissure locations continue to feed lava into the growing lava lake in Halema‘uma‘u crater, with the northern fissure (pictured right) remaining dominant. (Credit: M. Patrick, USGS. Public domain.)
As of just after 6 am HST on Dec 21, 2020, the middle of the 3 fissures that opened at Kīlauea last night has paused; the main eastern and weaker western fissures remain active. Lava continues to fill Halemaʻumaʻu, and volcanic gas and glass (Pele’s hair) travels downwind. pic.twitter.com/lBJXJ3EBoG
— USGS Volcanoes🌋 (@USGSVolcanoes) December 21, 2020
#Kilauea2020 #Lava cascades from a vent in the wall of #Halemaʻumaʻu around midnight on Dec 20. The water lake has boiled away and 3 vents are generating lava flows that are contributing to a growing lava lake. Eruption is confined to Halemaʻumaʻu crater (#Kīlauea‘s summit). pic.twitter.com/KdQUnMS7bn
— USGS Volcanoes🌋 (@USGSVolcanoes) December 21, 2020
