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Merapi Volcano Volcanic Ash Advisory: VA OBS AT 11/1850Z TO FL140 MOV SW OBS VA DTG: 11/1850Z to 14000 ft (4300 m)

Wed, 11 Aug 2021, 19:30
19:30 PM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows:

FVAU02 at 19:15 UTC, 11/08/21 from ADRM
VA ADVISORY
DTG: 20210811/1910Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/37
INFO SOURCE: HIMAWARI-8, WEBCAM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA OBS AT 11/1850Z TO FL140 MOV SW
OBS VA DTG: 11/1850Z
OBS VA CLD: SFC/FL140 S0732 E11029 - S0755 E11012 - S0745
E11002 - S0730 E11026 MOV SW 20KT
FCST VA CLD +6 HR: 12/0050Z NO VA EXP
FCST VA CLD +12 HR: 12/0650Z NO VA EXP
FCST VA CLD +18 HR: 12/1250Z NO VA EXP
RMK: DISCRETE VA EMISSION DISCERNIBLE ON RGB SATELLITE
IMAGERY. LAVA FLOW AND EMISSIONS CAN BE SEEN ON WEBCAM. VA
IS EXPECTED TO DISSIPATE WITHIN 6 HOURS. VA HEIGHT AND
MOVEMENT BASED ON HIMAWARI-8 IMAGERY AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20210812/0110Z=

Previous news

Wed, 11 Aug 2021, 06:00

Merapi volcano (Central Java, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 11 August-17 August 2021 (Continuing Activity)

BPPTKG reported that both the lava dome just below Merapi's SW rim and the lava dome in the summit crater remained active during 5-12 August. The domes grew and shed material down the flanks, resulting in relatively stable dome volumes. A total of 28 pyroclastic flows descended the SW flank as far as 3 km; as many as 252 lava avalanches traveled a maximum of 2 km SW and one traveled 500 m SE. ... Read all
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Merapi volcano
Stratovolcano 2968 m / 9,737 ft
Central Java, Indonesia, -7.54°S / 110.44°E
Current status: erupting (4 out of 5) Merapi volcano eruptions:
1548, 1554, 1560, 1584, 1586(?), 1587, 1658, 1663, 1672, 1678, 1745, 1752, 1755, 1768, 1791, 1797, 1807, 1810, 1812-22, 1822-23, 1828, 1832-36, 1837-38, 1840, 1846, 1848(?), 1849, 1854(?), 1861, 1862-64, 1865-71, 1872 (large vulcanian-subplinian eruption VEI:4) , 1872-73, 1878-79, 1883-84, 1885-87, 1888, 1889, 1891-92, 1893, 1894, 1897, 1902, 1902-04, 1905, 1906-07, 1908, 1909-13, 1915, 1918, 1920-21, 1922, 1923(?), 1924, 1930-31, 1932, 1933-35, 1939-40, 1942-45, 1948, 1953-58, 1961, 1967-1970, 1971(?), 1972-85, 1986-90, 1992-2002, April-July 2006, Oct 2010-2011 Feb, 2018 (May), late 2018 - ongoing
Typical eruption style
Highly explosive. Large Plinian eruption every few 1000 of years (the last ones at about 1000 BP and 2000 BP), sometimes with associated flank collapse. Growth of lava domes, pyroclastic flows.

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