The volcano on La Palma, which is part of the volcanic Canary Islands off northwest Africa and is home to about 85,000 people, erupted on Sept. 19. The prompt evacuations of more than 6,000 people helped avoid casualties. Life on the rest of La Palma, which is roughly 35 kilometers (22 miles) long and 20 kilometers (12 miles) wide at its broadest point, has been largely unaffected. "We're not in a state of total alarm," the technical director of the volcano emergency response unit, Miguel Ángel Morcuende, told a news conference. "Life on the island is continuing, though those close...