One of the world’s most active volcanoes, located in Kilauea, Hawaii, erupted for the seventh time since December on Monday evening, the U.S. Geological Survey said.

Using a nearly 200-year record of lava chemistry from Kīlauea and Maunaloa, earth scientists from the University of Hawaiʻi at Mānoa and colleagues revealed that Hawaiʻi’s two most active volcanoes share a source of magma within the Hawaiian plume. Their discovery was published in the “ Journal of Petrology .”