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A Vulcanian eruption is a type of volcanic eruption characterized by a dense cloud of ash-laden gas exploding from the crater and rising high above the peak. They usually commence with phreatomagmatic eruptions which can be extremely noisy due to the rising magma heating water in the ground. This is usually followed by the explosive clearing of ...
The word jökull [ˈjœːkʏtl̥], meaning glacier or ice cap, is a cognate with the Middle English word ikil surviving in the -icle of English icicle. The name Eyjafjöll is made up of the words eyja [ˈeiːja] (genitive plural of ey , meaning eyot or island ), and the plural word fjöll [ˈfjœtl̥] , meaning fells or mountains , and together ...
Volcanologists frequently visit volcanoes, especially active ones, to observe volcanic eruptions, collect eruptive products including tephra (such as ash or pumice), rock and lava samples. One major focus of enquiry is the prediction of eruptions; there is currently no accurate way to do this, but predicting or forecasting eruptions, like ...
While scientists have known that the major climate event reported during this period was caused by volcanic activity, the exact identity and location of the volcano remained a mystery – until now.
In 2009, a paper was published suggesting a new definition for the word 'volcano' that includes processes such as cryovolcanism. It suggested that a volcano be defined as 'an opening on a planet or moon's surface from which magma, as defined for that body, and/or magmatic gas is erupted.' [10] This article mainly covers volcanoes on Earth.
The historic Mount St. Helens eruption occurred 44 years ago, but it still remains an active volcano today. Could a WA volcano erupt again in our lifetime? What would happen and how you can prepare
The most recent eruptions began after an increase in earthquake activity, according to the USGS. The Hawaiian Volcano Observatory detected the eruption through webcam images of the summit caldera.
The English word "volcano", and its equivalent in several European languages, derives from the name of this island, which derives from the Roman belief that the tiny island was the chimney of Vulcan, the Roman god of fire. In November 2021, 150 people were evacuated from the island's harbour area due to increased volcanic activity and gases; an ...