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Indonesia Keeps Mount Semeru at Highest Alert as Rescuers Lead 170+ Climbers to Safety

Officials keep Level IV in place, citing persistent seismic unrest.

Overview

  • Multiple pyroclastic flows swept down the southern flanks, with authorities reporting runouts of up to about 13 kilometers and heavy ash blanketing nearby villages.
  • An exclusion radius of 8 kilometers from the crater remains in force, with warnings to stay clear of Besuk Kobokan river channels due to lahar danger and possible zone expansion.
  • Hundreds of residents were moved to temporary shelters, and officials reported no confirmed fatalities.
  • Operations at major airports in Java and Bali continued normally under close monitoring by aviation and meteorological agencies.
  • Instruments show elevated seismic activity and signals of avalanches, indicating the eruption is ongoing.