169 active volcanoes, mostly in Alaska, according to the U.S. Geological Survey....
Shouldn't "There are several volcanoes in America" be accepted as well?
It is now. :)
The one in Yellowstone is overdue to erupt and should substantially cover a large percentage of the continent in ash when it does.
Is this 'Amerika' ambiguous (related to both the continent and USA)?
In Norwegian, "Amerika" generally means the USA, and would be assumed so here.