The question on everyone’s mind:
Were they vaxxed?
Because it would have been worse if they weren’t.
/sarc
Btw, I almost lost control of a van I was driving on Highway 9 because a mudslide had covered the road surface with slippery wet adobe.
This was during that winter of ‘85-’86.
Mountain roads can be hazardous!
I camped at Yosemite back in 1984. At night, I could hear periodic rockslides in the distance.