A mysterious black hole seen on Google Earth sparked widespread online debate, yet what it turned out to be was far less ...

However, there are no known volcanic landforms in the immediate vicinity of Savonoski Crater and no signs of a magma source beneath the hole, according to the surveys from the 1960s and 1970s.

At the time, the mysterious object, which was widely referred to as a "black hole," sparked wild rumors online. However, it was quickly revealed to be an uninhabited island covered with dense trees.

What’s next? Lava is erupting from several volcanoes, including one in Hawaii. Nearly 50 volcanic eruptions have been recorded this year, and more are expected. The Axial Seamount, an underwater ...

cracks or holes in the mountain releasing volcanic gases and steam. The one warning sign that hasn't come yet is something called tremors. "Tremors are a long-duration shaking of the ground that ...

cracks or holes in the mountain releasing volcanic gases and steam. If Mount Spurr were to begin producing tremors – which it hasn't yet – that would be an indication the unrest would proceed ...