volcano

A fissure is seen next to a house covered with ash on the Canary island of La Palma on Dec. 1. Authorities on the Spanish island are declaring a volcanic eruption that has caused widespread damage but no casualties officially finished. Emilio Morenatti/AP hide caption

Indonesian villagers stand with Mount Semeru in the background on Saturday. Indonesian authorities raised the alert level for the highest volcano on Java island, saying it could blow up again after a sudden eruption earlier this month that killed dozens of people and left thousands homeless in villages that were buried in layers of mud. Hendra Permana/AP hide caption

Lava from a volcanic eruption surrounds a house on the island of La Palma in the Canary Islands on Thursday. Emilio Morenatti/AP hide caption

Two people are seen silhouetted against a night sky turned red by the eruption of Congo's Mount Nyiragongo on Saturday. Justin Kabumba/AP hide caption

Plumes of ash rise on Friday from the La Soufrière volcano as it erupts on the eastern Caribbean island of St. Vincent, as seen from Chateaubelair. Orvil Samuel/AP hide caption

Mount Merapi, Indonesia's most active volcano, spews rocks and gas into Wednesday's morning sky. Agung Supriyanto/AFP via Getty Images hide caption

Lava cascades into the summit water lake at the Kilauea volcano on Hawaii's big island. The eruption began late Sunday within the volcano's Halemaumau crater, at the summit of Kilauea. USGS hide caption

Officials say threat levels are at a "yellow phase 2," and are warning people to stay away from the volcano and its crater "due to the danger of falling ballistic fragments." webcamsdemexico hide caption

Smoke billows from White Island after a volcanic eruption on Monday. Officials say some people remain unaccounted for and it remains too dangerous for emergency services to access the island. George Novak/AP hide caption

This photo shows an early-morning view of Halema'uma'u Crater and the Kilauea Caldera June 5, 2018. The volcano is no longer erupting but is still active. U.S. Geological Survey via AP hide caption

The Volcano of Fire spewed lava and ash on Monday, as seen from Escuintla, Guatemala. Guatemalan authorities on Monday declared a red alert after the volcano erupted again, forcing thousands of residents to flee. Carlos Alonzo/AFP/Getty Images hide caption

Residents search for victims of the Fuego volcano eruption in the ash-covered village of San Miguel Los Lotes, in Escuintla, about 20 miles southwest of Guatemala City, on Thursday. Johan Ordonez/AFP/Getty Images hide caption

Lilian Hernandez cries as she is comforted by her husband at the Mormon church that has been enabled as a shelter near Escuintla, Guatemala, on Tuesday. Hernandez lost 36 family members in all, missing and presumed dead in the town of San Miguel Los Lotes after the fiery volcanic eruption of the Volcan de Fuego, or Volcano of Fire, in south-central Guatemala. Oliver de Ros/AP hide caption

In this photo released by the U.S. Geological Survey, lava is shown burning in Leilani Estates subdivision near the town of Pahoa on Hawaii's Big Island on Thursday. U.S. Geological Survey via AP hide caption