A limnic eruption, which is sometimes known as a lake overturn, is a rare but deadly type of natural disaster that occurs when large amounts of dissolved carbon dioxide erupt from deep lake waters, suffocating livestock, humans, wildlife and anything on its path. It does not involve any fire, lava, smoke or even ash. It is just a tremendous discharge of carbon dioxide.
Although indirectly related, scientists have established that limnic eruptions are very different from volcanic eruptions. While it is true that carbonation can trigger the onset of limnic eruption, cataclysmic events can initiate it as well. In this respect, rainstorms, volcanic eruptions, explosions and wind may all play a part in causing a limnic eruption.
In two instances, which both occurred in Cameroon, a limnic eruption killed 37 people and another 1,800 in 1984 and 1986 respectively. It is believed that the high-pressure of the lakes where it occurred and the tropical nature of the region both played a role in this. Both lakes have the same characteristics in that they are both very deep. The stable nature of the lake due to its deepness allowed the gas to build up within the sediment at the bottom and eventually erupt in a devastating fashion.Learn More
Volcanoes are not, in any meaningful sense of the word, alive. Volcanoes are rocky structures formed by the ejection of molten rock through weak spots in the Earth's crust, according to Oregon State University. Apart from some of the gases they expel, they are primarily silicon-based, not carbon-based.Full Answer >
Although Yellowstone is still an active volcano, its last lava-producing eruption occurred about 70,000 years ago and was non-explosive. The most recent non-explosive steam eruption occurred 13,800 years ago.Full Answer >
Paricutin is considered to be a scoria, or cinder, cone volcano. It stands at a height of 9,186 feet above sea level and has a lava field that covers an area of 10 square miles around it. As of 2014, it is the youngest Western Hemisphere-based volcano.Full Answer >
A volcanic neck, also called a lava neck or volcanic plug, is a cylindrical-shaped volcanic landform created when magma hardens inside the vent of a volcano, according to the University of Wisconsin. Examples of volcanic necks include Devil's Tower in Wyoming, Lizard Head in Colorado and Morro Rock in California.Full Answer >