Since the collapse the mountain has experienced shaking and periodic rockfalls.
In the 1970s, a concrete lining was applied to the western half of the tunnel to prevent rockfalls inside.
Rockfalls are frequent and walkers using the beach should not walk too close to the base of the cliffs.
Before he can act, an earthquake triggers a rockfall that crushes her and closes the mine.
Care should be taken when boating next to these cliffs, as rockfalls are frequent.
A rockfall in 2008 damaged a number of structures, and about one third of visitor units were closed because of risk.
Climbing should begin at night in order to reach the summit before sunrise when the snow melts increasing the chance of avalanche and rockfall increases.
However, the route up to the pass had become narrowed and dangerous due to rockfall.
