Originally posted by j2000
little snippet bellow :
Update time = Thu Jan 5, 2009 at 3:29 a.m.
Posted by geologist C.C. Sanders on January 5, 2009.
"I am informing all State officials around Yellowstone National Park for a potential State of Emergency. In the last week over 252 earthquakes have been observed by the USGS. All of the pre warning signs for poisonous gasses to escape from underneath the parks lakes are present. - I want everyone to leave Yellowstone National Park for 100 miles around the volcano caldera because of the danger in poisonous gasses that can escape from the hundreds of recent earthquakes. These poisonous gasses that can escape from underneath the lake present even more of a potential problem because of the super volcano."
Code - Yellow
Fairly recent history does show that a relatively minor eruption from under a lake can cause death to animals and humans. In the following case nearly 2,000 people died from such an event.
08/1986 (SEAN 11:08) Toxic gas cloud from Lake Nyos kills more than 1,700 people
During the evening of 21 August a toxic gas cloud emerged from a lake within a young volcanic crater in NW Cameroon, killing >1,700 people and uncounted numbers of animals. Scientists investigating the disaster suggested that the lake may [be underlain by] a recent diatreme [Kling and others, 1987].
Scientists interviewed many of the survivors (>300 were hospitalized), and took gas and water samples from the lake and streams. Medical and geological investigations suggest that victims were suffocated by CO2 gas; there was no evidence that HCN or CO were present. Many survivors reported that the odor of gunpowder or rotten eggs permeated the area for ~2 days after the event and many had chemical burns on their skin (Koenigsberg and others, 1986). Positions of dead animals suggested that the gas cloud [reached as high as] 100 m above of the lake surface as it moved out of the crater, over low spots in the rim. The CO2-laden cloud blanketed low areas around the lake. Some of the cloud moved N over the outflow, followed two stream valleys for ~1 km, then turned NE along a larger river valley and through the village of Nyos, asphyxiating most of the inhabitants in the area (figure 2). Gas that flowed W from the lake followed the Cha valley for [~15] km, causing many casualties. Portions of the gas cloud had enough density and velocity to knock down corn and banana plants in a few areas as it moved outward. Gas clouds also moved to the S along the inflow streams, spreading over a wide area, and over the E rim into a low-lying pocket.
In the case of Yellowstone it does not by any means have to be the "big one" to kill a lot of people and animals... A gas eruption from under the lake at Yellowstone may be more likely than a major volcanic eruption, and could be far worse than what happened above in Cameroon.