Italy is the only country in mainland Europe with active volcanoes. This volcanic activity is due chiefly to the presence of the boundary between the Eurasian and African tectonic plates.

Kilauea was erupting within Halemaʻumaʻu crater in the summit caldera, within a closed area of Hawai'i Volcanoes National Park, as of 6:30 a.m. local time, after it first erupted around 2:00 a.m.