Merapi volcano (Java, Indonesia): series of strong pyroclastic flows this morning

Wed, 27 Jan 2021, 09:44
09:44 AM | BY: MARTIN
Strong block-and-ash flow from the collapsing lava dome at Merapi volcano today (image: @frekom_diy/twitter)
Strong block-and-ash flow from the collapsing lava dome at Merapi volcano today (image: @frekom_diy/twitter)
Pyroclastic flow from the collapsing lava dome at Merapi volcano today (image: @BPPTKG/twitter)
Pyroclastic flow from the collapsing lava dome at Merapi volcano today (image: @BPPTKG/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:

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