In January 2002, Nyiragongo Volcano erupted in the Democratic Republic of the Congo, killing more than 100 people. Eight months later and 19 kilometers to the south, a magnitude-6.2 earthquake shook the Lake Kivu region, partially destroying the town of Kalehe. Now, scientists have determined that the two events were linked, and their results highlight a newly observed trigger for strong earthquakes near active volcanoes.