YELLOWSTONE UPDATE

Scientists have Warned a Major Yellowstone Tectonic Shift could spark a Mega Eruption

Pacific Ring of Fire: Scientists have warned that a major tectonic shift at Yellowstone Supervolcano will spark a massive eruption that will devastate the planet.

As the world’s volcanoes begin to wake up, experts have turned their attention to the unusual activity going on at Yellowstone. Increased activity above and below the surface at the US super volcano has set off alarm bells for those who are monitoring the site for a potential eruption.



Major Yellowstone Tectonic Shift Sparks Fears Of Mega Eruption:
Tectonic Shift
Unusual Eruptions At Yellowstone’s Largest Active Geyser Steamboat Baffles Scientists:
Geyser

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Yellowstone Super-Volcano, USA, Hydrogen Sulfide 21.5 ppm, Canyon, Madison River

Hydrogen sulfide (H2S) is very toxic in high concentrations.

Hydrogen sulfide is a colorless, flammable gas with a strong, offensive odor. It is sometimes referred to as sewer gas. Interestingly, the human nose is more sensitive to H2S than any gas monitoring instrument we have today: air mixtures with as little as 0.000001% H2S are associated with a rotten egg smell.
Unfortunately, however, our sense of smell is not a reliable alarm - at mixing ratios above about 0.01%, H2S becomes odorless and very toxic, causing irritation of the upper respiratory tract and, during long exposure, pulmonary edema. Exposure to 500 ppm can cause a human to fall unconscious in 5 minutes and die in an hour or less.
USGS