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Super Volcano Scientist have discovered that the ground in Yellowstone is over 70cm higher than in was in 1923 - indicating a massive swelling underneath the park. The reservoir is filling with magma at a staggering rate. The volcano erupts with a calendar-like cycle of every 600,000-650,000 years. The last eruption was more than 640,000 years ago - we could be running late.

Yellowstone Hotspot Dominates North America With 142 Massive Eruptions by Brooke Shiley, Salt Lake City - Jul 19, 2002 -- The hotspot, which powers the geysers and hot springs of Yellowstone has produced over 142 massive volcanic eruptions during the past 16.5 million years -- far more than the 100 previously known blasts, University of Utah geologists found. The cataclysmic explosions -- known as "caldera eruptions" -- typically generated 250 to 600 times as much volcanic ash as the 1980 eruption of Mount St. Helens in Washington state, and some were up to 2,500 times larger, covering as much as half the continental United States with inches to feet of volcanic ash.

Storm Tracker One of the best, fastest, and most interesting anomaly pages yet! Check it out!

Mt Ruapehu Current Status of New Zealand's Volcanoes with photos, etc. Ruapehu volcano is the southernmost of the large active volcanoes of the North Island. Rising to 2797m (9175ft), Mt Ruapehu is the highest mountain in the North Island and the most recent of the North Island volcanoes to have erupted. Ruapehu is located at the southern end of the Taupo Volcanic Zone (TVZ), a spreading segment of the Earth’s crust and the source of spectacularly explosive eruptions over the last 2 million years. Subsidence in the central axis of the TVZ has led to prominent active faults developing to the east and west of Ruapehu volcano, which are downthrown towards the mountain. These faults mark the boundary of the TVZ in this region, which terminates 20 km south of Ruapehu’s summit.

Kamchatka The Kamchatkan Volcanic Eruption Response Team (KVERT) is a program of the Institute for Volcanic Geology and Geochemistry in Petropavlovsk-Kamchatsky which monitors active Kamchatkan volcanoes and provides a weekly (or more frequently when activity warrants) status reports through the Alaska Volcano Observatory. These reports are collected here in reverse chronologic order for two months, at the end of which they will be archived

USGS Volcano Hazards (check daily) & Volcano World (check daily)

Worst-Case Scenarios: How To Survive A Volcanic Eruption You're hiking up Mount St. Helens when you hear an ominous rumble and the ground starts to shake. Gee, according to your guidebook, this isn't supposed to happen. The rumble gets louder and the shaking becomes more violent. Uh-oh! Mount St. Helens appears to be erupting. What should you do?

Volcano Survival - How to Survive a Catastrophic Volcanic Eruption Fifty-seven people lost their lives when Mount St. Helens erupted that May morning. But a few like Jim Scymanky actually lived through it, thanks only to a simple combination of sheer endurance and dumb-assed luck. If you’ve ever considered trying to ‘tough through’ a massive volcanic eruption to see the sights, consider Jim’s story.

Esquire: Feature Story: What It Feels Like... to Survive a Volcanic Eruption... We heard a loud boom. The noise didn't knock me down, but it was as loud as a military jet breaking the sound barrier. Even then, I wasn't really sure what the sound meant. I spun around and looked up, and there was this ninety-story gray column of rock, ash, and gas shooting out of the volcano. You see that going up and all you can think is, I've got to get out of here.

Largest volcano | Yellowstone volcano Caldera volcanoes are the Extreme Volcanoes. These are the most powerful and catastrophic types of volcanoes in a category by themselves because of the unique way in which they form. This type of volcano is shaped more like an inverse volcano. An enormous magma chamber bulges up beneath the ground from the extremely high pressures of the trapped gases within. Ring-shaped cracks form outward from the magma chamber toward the surface and these act as relief valves for the magma to escape. Once the accumulated pressure has been sufficiently released through a serious of extremely powerful pyroclastic and plinian eruptions, the ground above the magma chamber subsides or caves in, leaving a large depression. Caldera volcanoes are the largest on earth, with some calderas measuring from 15 to 100 kilometers wide.

Volcanic Ash—Effects on Agriculture and Mitigation Strategies Ash fall can adversely affect crops and livestock in a variety of ways, but it is very difficult to predict exact consequences and associated costs of potential ash damage or mitigation measures. The information in this section identifies a range of known effects of ash fall on agricultural crops and livestock that can serve as a rough guideline. The information below is incomplete, however, and is not applicable to all situations because of the wide range of ash thickness and type and status of crops that can exist in different parts of the world at the time of an an explosive eruption. Furthermore, there is a lack of detailed accounts of the effects of ash fall on individual farms in different regions, including the ways that farmers have attempted to reduce the damaging consequences to their crops and livestock.

Yellowstone Eruption Scuttles Balloon Regatta - U.S. - Avant News (Tomorrows News Today - July 22, 2019) A massive volcanic eruption at Yellowstone National Park yesterday wreaked havoc for the organizers and balloon captains of the 9th Annual Hot Air Balloon Regatta, causing disappointment among surviving spectators and participants. The eruption, which had not been anticipated by the regatta's organizers, severely disrupted the day's events and may force Western Ballooning to cancel the project altogether for this year.

Developing a Volcanic Emergency Plan Prepared by the United Nations Disaster Relief Coordinator and United Nations Educational Scientific and Cultural Organization, 1985. "It is not the purpose of this handbook to discuss the details of the planning and organization needed to deal with volcanic emergencies, since these will of necessity vary from country to country according to political, social, legal and economic conditions and to the level of technological development. What has been attempted, is to distill from past experience in various parts of the world some general principles of organization and practice which, it is hoped, may prove to be of universal validity. The text has been kept as concise as possible, with numerous references to actual events." See also: Preparing for Volcanic Emergencies

Types and Effects of Volcano Hazards Many kinds of volcanic activity can endanger the lives of people and property both close to and far away from a volcano. Most of the activity involves the explosive ejection or flowage of rock fragments and molten rock in various combinations of hot or cold, wet or dry, and fast or slow. Some hazards are more severe than others depending on the size and extent of the event taking place and whether people or property are in the way. And although most volcano hazards are triggered directly by an eruption, some occur when a volcano is quiet.

What to Do During Volcanic Ashfall Volcanic ash is rock that has been pulverized into dust or sand by volcanic activity. In very large eruptions, ash is accompanied by rocks having the weight and density of hailstones. Volcanic ash is hot near the volcano, but it is cool when it falls at greater distances. Ashfall blocks sunlight, reducing visibility and sometimes causing darkness. Ashfall can be accompanied by lightning.

USGS Volcano Warning Schemes in the United States The U.S. Geological Survey (USGS) has adopted a common system nationwide for characterizing the level of unrest and eruptive activity at volcanoes. The new volcano alert-level system is now used by the Alaska Volcano Observatory, the Cascades Volcano Observatory, the Hawaiian Volcano Observatory, the Long Valley Observatory, and the Yellowstone Volcano Observatory.

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