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This timeline of volcanism on Earth includes a list of major volcanic eruptions of approximately at least magnitude 6 on the Volcanic explosivity index (VEI) or equivalent sulfur dioxide emission during the Quaternary period (from 2.58 Mya to the present). Other volcanic eruptions are also listed.
"The eruption is not going to cause a tsunami because tsunamis are caused by a big, sudden movement of the sea floor," Chadwick said. "And, so, that doesn't happen in these eruptions. "And, so ...
Large volume volcanic eruptions in the Basin and Range Province include Basin and Range eruptions in Utah, California, Idaho, Colorado, New Mexico, Texas, Arizona, Nevada, Wyoming and Oregon, as well as those of the Long Valley Caldera geological province and the Yellowstone hotspot.
Niland Geyser (nicknamed the "Slow One" [2] and formally designated W9) [3] is a moving mud pot or mud spring outside Niland, California in the Salton Trough in an area of geological instability due to the San Andreas Fault, [4] formed due to carbon dioxide being released underground. It is the only mud pot or mud volcano known to have moved so ...
Neenach Volcano is an extinct Miocene volcano in the Coastal Ranges of California. After formation, the volcanic field was split by a fault in the San Andreas Fault Zone , and over the last 23 million years, the two halves of the volcano have moved about 195 miles (314 kilometers) apart.
These are the volcanoes monitored by the California Volcano Observatory, in order of highest to lowest risk assessment. Mt Shasta. According to USGS risk assessment of the volcanoes in CalVO's region, the following volcanoes were ranked "very high threat potential". [4] Mount Shasta in far-northern California, north of Redding
A long-quiet yet massive super volcano, dubbed the "Long Valley Caldera," has the potential to unleash a fiery hell across the planet, and the magma-filled mountain has a history of doing so.
In a volcanic eruption, lava, volcanic bombs, ash, and various gases are expelled from a volcanic vent and fissure. While many eruptions only pose dangers to the immediately surrounding area, Earth's largest eruptions can have a major regional or even global impact, with some affecting the climate and contributing to mass extinctions.