10476
Thousands of years ago , the eastern flank of the mountain experienced a catastrophic collapse , generating an enormous landslide in an event similar to that seen in the 1980 eruption of Mount St. Helens .
 location: Mount St. Helens
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Mount St. Helens