Latest Igneous rocks Stories
Ash from Iceland's erupting volcano has once again disrupted air travel in Europe, forcing flight delays in the UK and Ireland.
A team of researchers from the UK's National Oceanography Centre will be spending the next month investigating how recent eruptions of an Icelandic volcano have effected marine life in the North Atlantic.
The national seismological institute said the Santiaguito volcano showered sand and ash Monday over a large area of western Guatemala in an "unusual" and "violent" eruption.
More than four million Internet users from 150 countries are watching the Iceland volcano eruptions via webcams transmitting the activity live online.
Study of volcano-ice interaction offers window into geologic past and clues about Earth's long-term climate cycles.
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Despite strong tremors in the area, much less ash and smoke were rising from the Iceland volcano that crippled European air travel for much of the past week.
As airports across Europe reopened Tuesday and the long process of returning thousands of stranded passengers to their homes began, the ongoing fallout of recent volcanic eruptions in Iceland delayed the delivery of polio vaccine to Africa and caused concern that another, more dangerous eruption could soon occur at another nearby volcano.
The volcanic eruption in Iceland that has crippled European air travel for days is now beginning to produce molten lava, meaning that less ash should be produced and raising hopes that the existing cloud that has forced flights to be grounded could finally start dispersing.
New techniques under development could provide better tracking of volcanic plumes.
Mount Nyiragongo is an active stratovolcano that is located in the Democratic Republic of the Congo. This volcano is part of the Virunga Mountains and is located in Virunga National Park. It reaches an elevation of 11,385 feet and has a crater that reaches 1.2 miles in width. This crater typically holds a lava lake that has varied between 2,000 and 10,660 feet in depth. It is not known how long this volcano has been active, but at least 34 eruptions have been recorded since 1882. Mount...
Chaitén is a volcanic caldera that is located in southern Chile that reaches an elevation of 3,681 feet. It is thought that this volcano once held a rhyolite obsidian lava dome that reached 3,156 in height, but this was destroyed after its most recent eruption in 2008. In the past, this volcano has released grey obsidian, which was used by pre-Columbian cultures to make many objects, some of which have been found 250 miles away from the volcano. Chaitén experienced the beginning of a new...
Hualālai is a dormant shield volcano that is located on the island of Hawaii and is one of five volcanoes that form the island. It reaches an elevation of 8,271 feet and is thought to have emerged from the sea about 300,000 years ago, making it the third youngest volcano on the island. Its shape is rough compared to younger volcanoes and it holds three rift zones that are covered with over one hundred cinder cones and spatter cones. Although it does not hold a caldera at its summit, it does...
Kohala is an extinct shield volcano that is located on the island of Hawaii and reaches an elevation of 5,480 feet. It is one of five volcanoes that comprise the island of Hawaii and is thought to be about one million years old, although it only emerged from the sea about 500,000 years ago. Because its last eruption is thought to have occurred about 120,000 years ago, based on studies conducted on hardened lava flows, this volcano is not thought to pose a threat to inhabitants on the island....
Askja is an active stratovolcano that is located in the isolated central highlands in Iceland. It reaches an elevation of 4,974 feet and its name literally means caldera, or box, in the Icelandic language. The area can only be reached during a period of a few months and because it located in the rain shadow of the Vatnajökull glacier to the northeast, it only receives 17.7 inches of rain per year. One of Askja’s smaller craters holds a lake known as Öskjuvatn, which is often frozen over...
- A serpent whose bite was fabled to produce intense thirst.