Lava flows downhill in this image from a helicopter over Kilauea's lower East Rift Zone during ongoing eruptions of the Kilauea volcano in Hawaii on May 19, 2018. #

The Villarrica volcano is seen at night from Pucón, Chile, on September 2, 2018. #

Lava erupts from a fissure east of the Leilani Estates subdivision during ongoing eruptions of Kilauea in Hawaii on May 13, 2018. #

Jack Jones, visiting from Madison, Wisconsin, takes pictures at a country club in Hawaii as a huge ash plume rises from the summit of Kiluaea on May 21, 2018. #

Lava from the Kilauea volcano flows near the Puna Geothermal Venture power plant on June 10, 2018, in Pahoa, Hawaii. #

Lava gushes from a fissure of the Kilauea volcano in Leilani Estates, near Pahoa, Hawaii, on May 23, 2018. #

Lava erupts and flows from a Kilauea-volcano fissure on Hawaii's Big Island on May 18, 2018, in Kapoho. #

Lava erupts from a Kilauea-volcano fissure near a home on Hawaii's Big Island at dawn on May 18, 2018, in Kapoho. #

Lava destroys homes in the Kapoho area, east of Pahoa, during ongoing eruptions of Kilauea on June 5, 2018. #

A "laze," or lava haze, plume rises from the northern side of a fissure in the former Kapoho Bay in the town of Kapoho on the island of Hawaii on June 6, 2018. #

The Fuego volcano erupts, as seen from Alotenango, a municipality in Sacatepequez department, Guatemala, on November 19, 2018. #

A rescue worker carries a child covered with ash after the Fuego volcano erupted violently in El Rodeo, Guatemala, on June 3, 2018. #

The erupting Fuego volcano, seen from Alotenango municipality, Sacatepequez department, Guatemala, on June 3, 2018 #

A police officer runs away after the Fuego volcano spewed a new pyroclastic flow near San Miguel Los Lotes, Guatemala, on June 4, 2018. #

A living room engulfed in volcanic ash spewed by the Volcán de Fuego, or "Volcano of Fire," in San Miguel Los Lotes, Guatemala, on June 8, 2018 #

Mount Agung erupts in Bali, Indonesia, on July 2, 2018. #

With Legazpi in the foreground, the Mayon volcano erupts at dusk on January 25, 2018, in Albay province, Philippines. #

The Mayon volcano spews red-hot lava in an eruption, as seen from Legazpi, Albay province, Philippines, on January 24, 2018. #

Pyroclastic materials cascade down the slopes of the Mayon volcano during another eruption, as seen from Legazpi on January 24, 2018. #

Mount Soputan erupts during the night, as seen from the Lobu village in Southeast Minahasa Regency, North Sulawesi, Indonesia, on October 3, 2018. #