Wednesday, February 16, 2005

Volcanoes of Death

The following volcanic eruptions are known as the ones that have the highest death toll which means that there were more than 500 victims of these natural phenomenon. These eruptions range from until 1991 and the amount of deaths was between 700 and 92,000, the highest ranking being in 1815, in Indonesia.

As you can see, volcanoes may seem intriguing and mysterious as they display a strange mix of beauty and danger but it shows that something as phenomenal as a volcano must always be respected and observed from a distance otherwise, nature will take lives with little warning, affecting the lives of so many loved ones.

Mt. Vesuvius volcano, Italy

This is a great view of the eruption of this famous Italian volcano. Posted by Hello

Komagatake volcano, Japan

This is a great picture of this well known Japanese volcano.

Oshima volcano, Japan

This is a picture of another Japanese celebrity.

Papandayan volcano, Indonesia

This picture represents the eruption of this Indonesian volcano.

Asama volcano, Japan

This is a beautiful picture of another Japanese volcano.

Laki volcano, Iceland

This is an Icelandic volcano.
Posted by Hello

Unzen volcano, Japan

This is another Japanese volcano which displays a lot of character, especially during an eruption.

Mayon volcano, Philippines

This is a beautiful view of this volcano, at nightime. Posted by Hello

Tambora volcano, Indonesia

This is a great picture of a famous volcano in Indonesia.

Ruiz volcano, Colombia

This picture offers a beautiful view of this Colombian volcano.

Cotopaxi volcano, Ecuador

This is a wonderful picture of this volcano in Ecuador.

Galunggung volcano, Indonesia

This is another beautiful Indonesian volcano.

Krakatau (Krakatoa) volcano, Indonesia

This is a great view of this Indonesian volcano.

Soufriere volcano, St.Vincent

This is a wonderful picture of a volcano erupting in St.Vincent.

Mount Pelee, Martinique

This is a great picture of the eruption of this volcano in Martinique.

Taal volcano, Philippines

This is a bird view of this volcano situated in the Philippines.

Kelut volcano, Indonesia

This is a beautiful lake that is sitting in the crater of this Indonesian volcano.

Lamington volcano, Papua/New-Guinea

This is a great view of this erupting volcano in Papua/New-Guinea.

Agung volcano, Indonesia

This is an impressive close up of this Indonesian volcano.

El Chichon volcano, Mexico

This is an impressive eruption of this Mexican volcano.

Pinatubo volcano, Philippines

This is a beautiful bird view of this volcano, in the Philippines.

Tuesday, February 15, 2005

Well Known Volcanoes

Here are the most well known volcanoes in the world.

As you are now aware, each one of these volcanoes has a characteristic that distinguishes them from the other ones, all over the world.

Lassen Peak volcano, California, USA

This is an amazing picture taken of a volcano situated in California.

Thira (Santorini) volcano, Greece

This is a bird view of this Greek volcano.

Mauna Loa volcano, Hawaii, USA

This is a beautiful picture of this well known volcano in Hawaii.

Merapi volcano, Indonesia

This is another one of those beautiful volcanoes situated in Indonesia.

Crater Lake volcano, Oregon, USA

This is a magnificient bird view picture of this volcano in Oregon, USA.

Mount Etna volcano, Sicily, Italy

This is literally a beauty of nature which is Italian.

Mount Rainier volcano, Washington, USA

This is an incredible view of this American volcano.

Mount St.Helen volcano, Washington, USA

This is the eruption of another famous American volcano.

Saturday, February 12, 2005

Did you know?

Types of Volcanic Eruptions

How do you know if a volcanic eruption is mild or violent? Read the following characteristics.

The type of volcanic eruptions is often named after a famous volcano that has similar characteristics. A volcano might display only one type of eruption as another one might display several ones.

As you can see, a volcano has its own personality to show the world and it does that in a variety of ways. Beauty, danger and mystery mix together to offer spectacular and sometimes unpredictable, volcanic eruptions.

Type of eruption: Mild eruption

This is a great example of a mild eruption.

Type of eruption: Violent eruption

This is a spectacular example of a violent eruption.

Type of eruption: Plinian eruption

This is a beautiful example of a Plinian eruption.

Type of eruption: Phreatic eruption

This is a good example of a Phreatic eruption. Posted by Hello

Type of eruption: Strombolian eruption

This is a beautiful example of a Strombolian eruption.

Type of eruption: Hawaiian eruption

This is a wonderful example of an Hawaiian eruption.

Type of eruption: Vulcanian eruption

This is an excellent example of a Vulcanian eruption.

Type of eruption: Vesuvian eruption

This is a good example of a Vesuvian eruption.

This is a great example of a Pelean (Nuée ardente) eruption.

Tuesday, February 08, 2005

What is volcanic activity?

Volcanic activity is reflecting how often a volcano erupts, if at all. Some volcanoes are erupting often, others haven't in centuries and finally, some have not been erupting in thousands of years of even since the Ice Age.

Scientists classify the volcanic activity on a three levels scale. The levels are: active, dormant and extinct. An active volcano can erupt on a regular basis or periodically, for example, every ten years. The dormant volcano can be inactive over a long period of time, for example over a century and then all of a sudden, it has an eruption. The extinct volcano has been inactive for thousands of years and shows no sign of ever erupting again.

What is a volcano?

It is a mountain, in the middle of which there is a deep vent. At the bottom, there is a pool of molten rocks called magma. The magma mixes with gases and slowly build up the amount of pressure. The temperature rises, melting more rocks, increasing the pressure the pressure of both gases and magma.

At a certain level of pressure, the top of the vent which is partly covered by hardened lava and even plants, depending how long ago the volcano erupted, the explosion might be violent or more quiet. Then the magma is released out of the vent, flowing out of the volcano. It is now called lava.

Some volcanoes are now extinct which means that there was no volcanic activity recorded for centuries. Some volcanoes are dormant which means that they have not erupted in a long time. Other volcanoes are active but the timing between the eruptions vary greatly.

Volcano eruptions have been known to destroy forests and villages but also to have affected or even caused other natural disasters such as: mudflows, flashfloods, earthquakes, rockfalls and even tsunamis.

The pulverized rocks become ashes which can be acidic, smelly, glassy, harsh and gritty. It is said that the ashes of volcano eruptions can remain partially into the atmosphere for up to two years, affecting the weather conditions.

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