🌋 WATCH: The world's largest active volcano, Mauna Loa, erupts in Hawaii for the first time in nearly four decades, officials say: http://on.nbc10.com/jRULVYp | NBC10 Philadelphia

51K views · 245 reactions | Hawaii’s Mauna Loa, the world’s largest active volcano, started erupting Sunday night, the U.S. Geological Survey said. While lava flows are currently contained within the summit, the USGS warned that “based on past events, the early stages of a Mauna Loa eruption can be very dynamic and the location and advance of lava flows can change rapidly.” | CBS News | Facebook