2015: The Year in Volcanic Activity

Once again, it has been a particularly eventful year for the world's volcanoes. Out of an estimated 1,500 active volcanoes, 50 or so erupt every year, spewing steam, ash, toxic gases, and lava. In 2015, erupting volcanoes included Mount Etna in Italy, Wolf volcano in the Galapagos Islands, Cotopaxi in Ecuador, Villarrica in Chile, Hunga Tonga-Hunga Ha'apai in Tonga, Mount Sinabung in Indonesia, Piton de la Fournaise on Réunion Island, Kilauea on Hawaii, Momotombo in Nicaragua, Colima in Mexico, and Calbuco in Chile. Collected below are scenes from the wide variety of volcanic activity on Earth over the past year.

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