Search results
Results from the WOW.Com Content Network
Of particular importance is the prediction of hazardous eruptions that could lead to catastrophic loss of life, property, and disruption of human activities. Risk and uncertainty are central to forecasting and prediction, which are not necessarily the same thing in the context of volcanoes, but both have a process based on past and present data.
In volcanology, deformation refers to the change in the shape of a volcano or the surrounding landscape due to the movement of magma. [1] This can be in the form of inflation, which is a response to pressurization , or deflation, which is a response to depressurization.
Seismic data used to provide additional constraints on source temperatures are highly ambiguous. [8] In addition to this, several predictions of the plume theory have proved unsuccessful at many locations purported to be underlain by mantle plumes, [9] [7] and there are also significant theoretical reasons to doubt the hypothesis. [10] [11]
A volcano close to erupting in Iceland could explode like a “can of fizzy drink,” an expert has said. ... “But the deformation data suggests just west of Þórbjörn, about 2km north of ...
Volcanoes, he said, were formed where the rays of the sun pierced the earth. The volcanoes of southern Italy attracted naturalists ever since the Renaissance led to the rediscovery of Classical descriptions of them by wtiters like Lucretius and Strabo. Vesuvius, Stromboli and Vulcano provided an opportunity to study the nature of volcanic ...
The researchers calculated that the sand volcanoes formed 2,500 years ago. About 50 miles (85 kilometers) away from the sand volcanoes, the scientists also found a large river channel that filled ...
Tao-Rusyr Caldera (Russian: Тао-Русыр) is a stratovolcano located at the southern end of Onekotan Island, Kuril Islands, Russia.It has 7.5 km wide caldera formed during a catastrophic eruption less than 10,000 years ago (reported ages range from 5,550 to 9,400 Before Present).
In igneous petrology the term more specifically refers to the volatile components of magma (mostly water vapor and carbon dioxide) that affect the appearance and explosivity of volcanoes. Volatiles in a magma with a high viscosity , generally felsic with a higher silica (SiO 2 ) content, tend to produce eruptions that are explosive eruption .