Semeru’s Lava Dome Landslide
Mount Semeru eruption on December 4 was triggered by the lava dome collapse. Heavy rains on the mountain’s summit caused the lava dome to be unstable, it then came down as pyroclastic flows.
Anwar Siswadi
December 13, 2021
SURONO, 66 years old, did not see changes in Semeru's behaviors. Even when the highest mountain in Java located in Lumajang and Malang Regencies, East Java, erupted on Saturday, December 4. When the eruption occurred at 2:50pm, the mountain’s Mahameru summit of 3,676 meters above sea level had an alert status, alias only at level II. “There was nothing unusual. Its behavior was normal,” said Surono, who is the Head
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