Ice volcanoes are a common sight on the north shore of Lake Superior during the winter months. They require a combination of high surf, cool temperatures and ice.
Mount Merapi erupted again early Thursday morning, causing volcanic material and ash rain to spew over several villages in its surrounding area.
The footprints are dated to a time when a major mass extinction event devastated life on Earth.
Volcano experts say the danger of another eruption remains high, with more than 100 tremors reported since Wednesday.
Additional eruptions at the Filipino volcano could cause pyroclastic flows, which destroy "nearly everything in their path."
Tens of thousands of people have been urged to leave their homes and officials warned more eruptions could occur.
Scientists watch rare event unfold after unusual seismic activity was recorded in the Indian Ocean.
Krystal Eve Browitt, a 21-year-old Australian from the city of Melbourne, is the first of 15 people who died in the White Island eruption to be named by the New Zealand police.
Despite the dangers, tourists continue to flock to these volatile places for incredible views and to take a peek at Mother Nature's temperamental hot spots.
Enormous pumice raft was first spotted in the waters of Tonga in August.
At least six people have died, another eight are missing and 31 are injured after the volcano on White Island, erupted off the coast of New Zealand.
Passengers from Royal Caribbean's Ovation of the Seas had been visiting the island the volcano erupted on New Zealand's Whakaari (White Island).
The young volcano was discovered near Japan's Marcus Island and last erupted less than three million years ago.
The KLM flight KL685 was flying from Amsterdam to Mexico City, but turned around over New Brunswick, Canada.
Mount Merapi in Indonesia erupted at 10.46 a.m. local time on Sunday, the National Disaster Mitigation Agency said.
Scientists from the Deep Carbon Observatory have provided results from a decade-long study into the world's carbon reservoirs.
"According to the Incas, a person struck by lightning received great honor—a god expressed interest in that person," said bioarchaeologist Dagmara Socha.
Loki Patera is located on Jupiter's moon Io, one of the most volcanically active places in the solar system.
Water has been steadily rising in the pool since it was discovered at the end of July.
Around 100 volcanoes were found under Australia's Cooper-Eromanga Basins.
The National Park Service confirmed the victims's family returned to the park and collected his remains. The victim, who was last week four years ago, was named as Feiyang "Isaac" Xiang, 21.
A green pond about the size of a pickup truck appeared at the bottom of the crater in July and it seems to be growing.
Some 500,000 people live in Campi Flegrei's "red zone." Researchers say the government's emergency plan should acknowledge the possibility of tsunamis if an eruption occurs.
Professor says expanded excavations at Pompeii come at the expense of vital information about one of the world's most dangerous volcanoes.
The enormous undersea mountain is an ocean plateau rather than a shield volcano, scientists say.
The images show fountains of magma spewing from the crater and a cloud of ash that is visible from space.
"When a volcano is silent for a long time, its first explosion can be catastrophic," researcher Ivan Kulakov said.
The discovery could have significant implications in the search for signs of past life on the Red Planet.
The man, who fell at least 60 feet, was on a field training exercise and had climbed a cliffside barrier to get a better view.