Facts

[Dancing quee]

Hiya

For my homework I have been asked to fid 10 amazings facts on volcanoes but I've looked everywhere and can't find any!

Can anyone help? - I am 11 years old.

[Clanad]

Check here:

http://www.geology.sdsu.edu/how_volcanoes_work/

And here:

http://volcano.und.nodak.edu/

Good hunting!

[sddsddean]

The largest known volcano is Olympus Mons in the Tharsis region of the planet Mars. It is about 25 km high (almost 3 times the height of Mt Everest) and has a base diameter of around 600km.

The loudest noise ever heard was the eruption of Krakatoa (near Java) on 27th August 1883. It was heard over 2000 miles away in Australia.

Arthurs Seat, a beauty spot overlooking Edinburgh, is the remnants of an extinct volcano.

[Peter Pedant]

some history

Krakatoa 1883 led to a succession of wet winters and failed crops - ie early climate change

Vesuvius erupted and buried Pompeii AD78

various things come out of volcanoes one of which is the flow of v hot gases which incinerates everything as is called a pyroclastic flow -Martinique 1904

Youmust be near to ten by now!

[Loosehead]

There is a "super Volcano" underneath Yellowstone national park, it is 20000 years late for an eruption nd it is beleived to be in the early stages of an erruption:

http://www.cuttingedge.org/news/n1852.cfm

[Octavius]

The name "volcano" originates from the name of Vulcan, a god of fire in Roman mythology.

The Great Thj�rs�rhraun flow produced by an eruptive fissure almost in the geographical center of Iceland roughly 8,000 years ago; it flowed all the way to the sea, a distance of 130km, and covered an area of 800km�

The largest lava shield on Earth, Mauna Loa, is 9,000 m tall (it sits on the sea floor), 120 km in diameter and forms part of the Island of Hawai'i.

There are several extinct volcanoes on Mars, four of which are vast shield volcanoes far bigger than any on Earth:

Arsia Mons
Ascraeus Mons
Hecates Tholus
Olympus Mons
Pavonis Mons

Jupiter's moon Io is the most volcanic object in the solar system, due to tidal interaction with Jupiter. It is covered with volcanoes that erupt sulfur, sulfur dioxide and silicate rock, with the result that the moon is constantly being resurfaced. Its lavas are the hottest known anywhere in the solar system, with temperatures exceeding 1800 K (1500 �C). In February 2001, the largest recorded volcanic eruptions in the solar system occurred on Io.

Mount Versuvius AD 79. Approx 2,000 people killed.  Eruption lasted about 19 hours ejecting 4km� of ash reaching 20 miles into the sky. Many of the victims and other organic objects (such as beds and doors) were carbonized by the intense heat, which reached temperatures of up to 750�. Many of the victims were found with the tops of their skulls missing � their brains had exploded in the intense heat.

[juliely]

What about the Canary Islands, they are volcanic.

[brachiopod]

The Deccan traps in India are a large area of flood basalts (lava that has flowed out of volcanoes and cooled) that are up to 2,000m thick and cover an area of over 500,000 km�.
The original area covered by lava is estimated to be around 1.5 million km� with a volume of 512,000 cubic kilometres!
They were probably formed by a mantle plume or hot-spot deep under the Earth that caused a series of volvanoes to pump out their lava between 65 and 60 million years ago - that's a period of about 5 million years!

[Laurinha]

Some guys working in the forest survived when Mount St. Helen's in the states exploded on them - I thought that was quite interesting.

There's an active Marine Volcano off the coast of Whakatane in New Zealand called White Island or Whakaari in Maori.  It was interesting while I was walking on it - not so sure if it will be to you though.

[Laurinha]

The Canary Islands are volcanic and they reckon not if but when... an eruption or earthquake occurs there and a piece of land that sits on a fault line gives way it will cause a Mega-Tsunami that will cross the Atlantic and destroy the entire eastern seaboard of the United States.

[Octavius]

Some time in the next few thousand years the western flank of the Cumbre Vieja volcano on the Canary Island of La Palma will collapse, sending walls of water 100 meters high racing across the Atlantic.

But the risk of a landslide in the Canary Islands causing a tidal wave (tsunami) able to devastate America's east coast is vastly overstated, since it is believed the land will break off in chunks rather than one big piece.

[Quizmonkey]

Amazing fact!!

The word volcano comes from Vulcan, the Roman god of fire

[jno]

Ruapehu, another live New Zealand volcano

[Kingnormie]

Howdy, Dancin' Quee!  I, when I was your age, had a zit on my nose that was, for a relatively short period of time, geologically speaking, the largest active volcano in Arizona!