Comment by waste_monk

I can't access the OP article at the moment, but there's a diagram of the the chain of events that caused the disaster here [1].

I believe Lahars are specifically volcanic, this would be better described as a combination flood and landslide at the same time.

[1] https://www.bbc.com/news/live/c6y8mjmnpxv0t?post=asset%3Ac6b...