Galapagos Island

A volcano atop one of the Galapagos Islands has erupted for the first time in 33 years, threatening a fragile ecosystem that inspired Charles Darwin's theory of evolution.

Ecuador's Galapagos National Park administration said the mile-high (1.7 kilometer-high) Wolf volcano began spewing fire, smoke and lava before dawn Monday.

The volcano lies on the northern tip of Isabela Island, the archipelago's largest.