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  2. Volcanic ash - Wikipedia

    en.wikipedia.org/wiki/Volcanic_ash

    454 million-year-old volcanic ash between layers of limestone in the catacombs of Peter the Great's Naval Fortress in Estonia near Laagri. This is a remnant of one of the oldest large eruptions preserved. The diameter of the black camera lens cover is 58 mm (2.3 in). Volcanic ash is formed during explosive volcanic eruptions and phreatomagmatic ...

  3. Eruption of Mount Vesuvius in 79 AD - Wikipedia

    en.wikipedia.org/wiki/Eruption_of_Mount_Vesuvius...

    VEI. 5. Impact. Buried the Roman settlements of Pompeii, Herculaneum, Oplontis, and Stabiae. Deaths. 1,500–3,500, possibly up to 16,000 [1][note 1] Of the many eruptions of Mount Vesuvius, a major stratovolcano in Southern Italy, the best-known is its eruption in 79 AD, [2][3] which was one of the deadliest in history.

  4. Mount Vesuvius - Wikipedia

    en.wikipedia.org/wiki/Mount_Vesuvius

    17–23 March 1944. Climbing. Easiest route. Walk. Mount Vesuvius (/ vɪˈsuːviəs / viss-OO-vee-əs) [a] is a somma – stratovolcano located on the Gulf of Naples in Campania, Italy, about 9 km (5.6 mi) east of Naples and a short distance from the shore. It is one of several volcanoes forming the Campanian volcanic arc.

  5. Eruption column - Wikipedia

    en.wikipedia.org/wiki/Eruption_column

    An eruption column or eruption plume is a cloud of super-heated ash and tephra suspended in gases emitted during an explosive volcanic eruption. The volcanic materials form a vertical column or plume that may rise many kilometers into the air above the vent of the volcano. In the most explosive eruptions, the eruption column may rise over 40 km ...

  6. Mount Pinatubo - Wikipedia

    en.wikipedia.org/wiki/Mount_Pinatubo

    Mount Pinatubo[ 4 ] is an active stratovolcano in the Zambales Mountains in Luzon in the Philippines. Located on the tripoint of Zambales, Tarlac and Pampanga provinces, [ 5 ][ 6 ] most people were unaware of its eruptive history before the pre-eruption volcanic activity in early 1991.

  7. Caldera - Wikipedia

    en.wikipedia.org/wiki/Caldera

    Caldera. A caldera (/ kɔːlˈdɛrə, kæl -/ [1] kawl-DERR-ə, kal-) is a large cauldron -like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the structural integrity of such a chamber, greatly ...

  8. Mount St. Helens - Wikipedia

    en.wikipedia.org/wiki/Mount_St._Helens

    Hike via south slope of volcano (closest area near eruption site) Mount St. Helens (known as Lawetlat'la to the indigenous Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, [1] in the Pacific Northwest region of the United States. It lies 52 miles (83 km) northeast ...

  9. Indonesia's Mt Ibu erupts, spewing ash clouds - AOL

    www.aol.com/news/indonesias-mt-ibu-erupts...

    The volcano on the remote island of Halmahera erupted at 9.12 a.m. (0012 GMT) for about five minutes, projecting ash into the sky as high as 5 km (3.1 miles), officials said. Indonesia's Mt Ibu ...