Volcanic Ash Advisory Centers (VAAC) sind Forschungszentren, die vulkanische Asche Wolken in Echtzeit überwachen. Jedes Mal, ein Vulkan bricht eine bedeutende Aschewolke, Kurzberichte ausgestellt und direkt an die Kontrollzentren Luft übertragen. Der 9 VAAC in London, Toulouse, Tokyo, Darwin, Anchorage, Washington, Montreal und Buenos Aireas liegen und gemeinsam decken die meisten der Welt.

Ganzer Eintrag

Vakak (or Wakak) volcano is a field of 18 small volcanoes 115 km WSW of Kabul. It is the northernmost of a group of small volcanic fields in the Ghanzi region and consists of lava domes, one of which occupies an old caldera.
The age of its last eruption is unknown, but could be relatively recent (less than 10,000 years ago).

Ganzer Eintrag

The 22-km-wide Valles caldera was formed by 2 very large explosive eruptions 1.7 and 1.2 million years ago. Post caldera eruptions formed Redondo Peak dome inside the caldera.
The last eruptions of the caldera happened 50,000-60,000 years ago, depositing rhyolite ignimbrite deposits.
The caldera is still considered potentially active and has an active geothermal system with hot springs and fumaroles.

Ganzer Eintrag

Vathy ist ein kleines Dorf an der Westküste der Halbinsel Methana

Ganzer Eintrag

Der Fischerhafen Vathy auf Methana

Ganzer Eintrag

Veniaminof is one of the highest, largest and most active volcanoes on the Alaska Peninsula.

Ganzer Eintrag

Vernadskii Ridge comprises 3 groups of volcanoes in northern Paramushir Island, Kuril Islands, immediately south of active Ebeko volcano.
The Vernadskii and Bogdanovich groups of volcanoes are the southernmost of this complex and have been active during the past 10,000 years.

Ganzer Eintrag

Vestmannaeyjar is a mostly submarine volcanic system just off Iceland's south coast, famous for the appearance of Surtsey Island in 1963-67 and the destructive eruption on Heimaey Island in 1973.

Ganzer Eintrag

Veteran is a submarine volcano 34 km SSE off the Grand Catwick Rock, located off the SE coast of Vietnam.
In 1880, a new reef was reported at this location. In 1882, it had disappeared, suggesting that a volcanic eruption had occurred.
Discolored water at the site, possibly from fumarolic activity, was reported in 1928.
The area lies along a regional N-S-trending lineament related to extension produced by collision of the Australian plate.
(Source: Smithsonian / GVP)

Mt Victory Volcano is a dominantly andesitic stratovolcano on the NE coast of mainland New Guinea, 30 km from Tufi on Cape Nelson.
Mt Victory's summit contains a small crater lake. There is only 1 confirmed historical eruption from Victory volcano, but that consisted in long-lasting activity during the late 19thand until the 20th century, and its red crater glow was a well-known beacon for passing ships at that time. Pyroclastic flows occurred during this period of activity around 1880 and destroyed several villages and caused fatalities. At present, there is weak thermal activity.

Ganzer Eintrag

Viedma is a volcano underneath the Patagonian Icefield NW of Viedma Lake in southern Argentinia. Its existence was confirmed during the eruption in 1988. ONly parts of the volcano rise above the glaciers.

Ganzer Eintrag

Die Möglichkeit einer Flüssigkeit zu fließen. Basalt Magma hat eine relativ niedrige Viskosität, damit laufende, während Rhyolith Magma hat eine hohe Viskosität machen das Magma dick und klebrig.

The Vitim Plateau volcano is a vast volcanic field northeast of the Baikal Lake. Cinder cones and associated lava flows are spread over an area of about 10,000 sq km.

Ganzer Eintrag

Volcán Azul (also known as Volcán Blue) a group of 3 cinder cones located on the Atlantic coastal plain of Nicaragua. The volcanic cones are in an area covered by dense rainforest and were discovered during an aerial survey in the 1960s.

Note: There is another Cerro Azul volcano in Chile.

Ganzer Eintrag

Griechische Vulkaninsel am Südende der Kykladen Inselgruppe.

Ganzer Eintrag

Die Wissenschaft des Studiums Vulkane.

Ganzer Eintrag

Reisen zu aktiv geltenden Vulkangebieten

Ganzer Eintrag

The Vulsini volcanic complex in central Italy covers about 2200 sq km at the northern end of the Roman magmatic province.

Ganzer Eintrag