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Semeru volcano
Stratovolcano 3676 m (12,060 ft)
East Java, Indonesia, -8.11°S / 112.92°E
Current status: erupting (4 out of 5) Semeru volcano eruptions:
1818, 1829, 1830, 1832, 1836, 1838, 1842, 1844, 1845, 1848, 1849(?), 1851, 1856, 1857, 1865, 1866(?), 1887, 1887, 1888, 1889-91, 1892, 1893, 1893-94, 1895, 1896, 1897, 1899, 1899, 1900, 1901, 1903, 1904, 1905, 1907, 1908, 1909-10, 1910-11, 1911, 1912, 1913, 1941-42, 1945, 1946, 1946-47, 1950-64, 1967-ongoing
Typical eruption style:
Explosive. Near constant strombolian activity, occasionally stronger explosions, lava flows and pyroclastic flows.

Semeru volcano tours:
From Krakatau to Bali (16-days study and photo tour to Java, Indonesia)
Volcanoes of Java (17-days walking and trekking tour on Java)
Volcanoes of East Java (4-5 days walking tour to Bromo, Semeru and Ijen)
Bromo, Semeru, Ijen (trekking tour to Semeru, Bromo, Ijen volcanoes (East Java))

Semeru volcano (East Java, Indonesia): massive block and ash flow creates billowing ash plume

Sat, 16 Jan 2021, 22:33
22:33 PM | BY: T
View of the pyroclastic flow at Semeru volcano this afternoon (image: Pasek Made / facebook)
View of the pyroclastic flow at Semeru volcano this afternoon (image: Pasek Made / facebook)
The volcano had a significant eruptive phase this afternoon. Starting at around 17:24 local time, a pyroclastic flow was observed that traveled a distance of approx. 4500 m, according to Indonesia's Civil Defense Agency BNPB.
The hot avalanche was likely caused by collapses of parts of the lava dome and/or upper parts of the lava flow on the steep southern slope of the volcano. Associated ash plumes rose to an altitude of 5500 m above sea level.
The volcanologists at the observatory registered a corresponding seismic signal with up to 22 mm amplitude that lasted for the considerable long period of 4287 seconds (approx. 1 hour 20 mins).

Another impressive video can be found on Pasek Made's page on facebook, from where the attached image stems.

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