Merapi volcano (Java, Indonesia): glowing dome block avalanches continue
Sun, 19 Mar 2023, 14:48 14:48 PM | BY: MARTIN
Glowing dome block avalanches travel along the steep ravines (image: Andi/VolcanoDiscovery Indonesia)
Constant pyroclastic flows continue to travel from the southwestern lava dome as the active basaltic-andesitic lava intrudes into the dome. Therefore, more and more unstable lava material makes the dome prone to collapse towards the steep ravines, which in turn often develop into very dangerous block-and-flows.
Merapi itself has given its name to a style of these types of pyroclastic density currents: Merapi-type. However, once magma properties change its differentiation and pressure to higher levels, this might lead to explosive events on the growing lava dome triggering pyroclastic flows (so-called Peléean type).
Furthermore, the volume of the SW lava dome has reduced after the partial collapse a week ago, but another collapse is not ruled out.
- All news about: Merapi volcano
- Information about: Merapi volcano
Previous news
Fri, 17 Mar 2023, 15:15
Merapi Volcano Volcanic Ash Advisory: VA TO FL140 MOV W OBS VA DTG: 17/1500Z to 14000 ft (4300 m)
Wed, 15 Mar 2023, 15:00
Merapi volcano (Central Java) - Smithsonian / USGS Weekly Volcanic Activity Report for 8 March-14 March 2023 (New Activity / Unrest)
BPPTKG reported that the eruption at Merapi (on Java) continued during 3-9 March and seismicity remained at high levels. The SW lava dome produced 19 lava avalanches that traveled as far as 1.7 km down the SW flank (upstream in the Bebeng, Boyong, and Sat/Putih drainages). No significant morphological changes to the central and SW lava domes were evident in webcam images. ... Read all
Show more
