TANAH DATAR, Indonesia: At least 34 people have died and 16 more were missing after flash floods and cold lava flow from a volcano hit western Indonesia, a local disaster official said on Sunday (May 12). Hours of heavy rain caused flooding in two districts in West Sumatra province on Saturday evening and
Cold lava flow? A lahar?
Edit… Ah, i should have read further.
I have never heard the term before but makes sense now I read what it actually is. Rocks and ash