What had been low-level lava flows since Thursday morning became more vigorous fountaining Friday evening, according to the U.S. Geological Survey’s Hawaii Volcano Observatory.

Lava is erupting from Hawaii’s Kilauea volcano for the second straight day. The eruption has stayed within Kilauea’s summit caldera inside Hawaii Volcanoes National Park and no homes are threatened.

Kilauea began erupting around 2:30 a.m. Monday morning local time at the base of the Halemaumau Crater within the summit caldera after elevated seismic activity was detected overnight.