Experts on watch for more explosions on Stromboli volcano

In this frame grab taken from a video provided by Carlo Poggio to the Associated Press Television, smoke billows from the volcano on the Italian island of Stromboli, Wednesday, Aug. 28, 2019. The Stromboli volcano has erupted, spewing fiery chunks of lava onto the tiny Italian island and alarming residents and tourists. The National Institute of Geophysics and Volcanology says a strong volcanic explosion just after noon Wednesday sent flaming lava rolling down the volcano’s slopes to the edge of the sea. A similarly spectacular eruption in July on Stromboli killed an Italian hiker. (Carlo Poggio Via AP)

In this frame grab taken from a footage provided by the Italian Firefighters, smoke billows from the volcano on the Italian island of Stromboli, Wednesday, Aug. 28, 2019. (Italian Firefighters Via AP)

In this frame grab taken from a video provided by Marta Carpinelli to the Associated Press Television, smoke billows from the volcano on the Italian island of Stromboli, Wednesday, Aug. 28, 2019. The Stromboli volcano has erupted, spewing fiery chunks of lava onto the tiny Italian island and alarming residents and tourists. The National Institute of Geophysics and Volcanology says a strong volcanic explosion just after noon Wednesday sent flaming lava rolling down the volcano’s slopes to the edge of the sea. A similarly spectacular eruption in July on Stromboli killed an Italian hiker. (Marta Carpinelli Via AP)