Schlagwort: volcano

Strong block-and-ash flow from the collapsing lava dome at Merapi volcano today (image: @frekom_diy/twitter)

The extrusive eruption of the volcano continues at elevated levels.
A series of strong pyroclastic flows were released from the actively growing lava dome in the inner summit crater this morning at about 06:00 local time. Gravitational collapse of the lava dome parts generated the block-and-ash flows that descended the SW flank of the volcano. Glowing avalanches reached 800 m-1200 m in the Kali Krasak drainage and lasted approx. 83-122 seconds.
Ash plumes separating from the pyroclastic density current (so-called phoenix clouds) extended about 1200 m to the southwest of the volcano. Pyroclastic flow is volcanic phenomenon includes turbulent and hot avalanches of hot lava rocks, ash and volcanic gasses mixed together.

Strong pyroclastic flow from Merapi’s lava dome:

Erupsi kali ini cukup besar
Terjadi luncuran awan panas pada pukul 05:51 WIB tadi pagi

Arah aliran luncuran ke Sungkai boyong sebagian ke sungai krasak

Abu vulkanik mengarah ke timur dan tenggara, untuk daerah Jogja Utara, Sleman, Boyolali, dan Klaten mungkin terjadi hujan abu pic.twitter.com/PynVNjG5I0

— pendakilawas (@pendakilawas) January 27, 2021

Pyroclastic flow from the collapsing lava dome at Merapi volcano today (image: @BPPTKG/twitter)

Map of today’s active volcanoes

Sakurajima (Kyushu, Japan): (26 Jan) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20210126/0150Z OVER FL050 EXTD NW OBS VA DTG:26/0140Z

Dukono (Halmahera): (26 Jan) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VONA STATE ERUPTION TO FL050 MOV S AT 26/0406Z

Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: OCNL EM to 19000 ft (5800 m)

Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: MINOR EM SEEN IN STLT AND WEBCAM

Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: ONGOING VA EMS to 19000 ft (5800 m)

Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 and is moving at 10 kts in NE direction.
The full report is as follows: PUFF EMISSIONS to 23000 ft (7000 m)