The Ring Of Fire : Mount Etna

Let’s begin with Mount St. Helens which is located in the pacific northwest of the United States. To be more specific it is located in Washington State and is a part of the Cascade mountain range that spans from California to Canada. It is a composite volcano, which has steep sides that are formed by alternating layers of lava

Although there are other volcanic events that don’t prove that the tectonic theory is valid. For example The "Ring of Fire" is an arc stretching from New Zealand, along the eastern edge of Asia, north across the Aleutian Islands of Alaska, and south along the coast of North and South America. The Ring of Fire is composed over 75% of the world's active and dormant volcanoes. This huge ring of volcanic and seismic (earthquake) activity was noticed and described before the invention of the theory of plate tectonics theory. Also without movement at the boundaries around the Pacific, volcanoes such as Mt St Helens would simply not exist, as they would have no fuel caused by the subduction of an oceanic plate under a continental plate.

The Pacific Ring of Fire reveals a connection between subduction zones and volcanoes. Inland of each subduction zone is a chain of spouting volcanoes called a volcanic arc, such as Alaska's Aleutian Islands. The Toba volcanic eruption in Indonesia, the largest volcanic eruption in the past 25 million years, was from a subduction zone volcano.

The volcanoes are located where there is a divergence or convergence in the tectonic plates and bring their lava from the deepest of the terrestrial mantle. The materials and explosions of these ginates represent a constant risk in the places inhabited by the human being, nevertheless the people ususually live in these areas no matter the risk. On the other hand the volcanos can change the geology of an impressive form, or to cool the temperature of the earth, or to darken the sky. The scientific community increases its efforts to try to understand better what happens in volcanoes, however it is impossible to predict these conditions.

Volcanoes are one of the most destructive, yet, most beautiful things on Earth. They can make a famous city choke in its own ashes in one day, like Pompeii. Or they can turn a once damaging mountain into a graceful and peaceful home for new life, like Mount St. Helen’s. All volcanoes are unique, and no two are the same. Some erupt differently than others, some look different than others, and all are located in different spots all over the world. I learned this while completing the project and the five volcanoes I researched are examples of my discoveries. The five volcanoes I researched were Mount Hood, Mount Mageik, Long Island, Mount Muria, and Las Pilas.

The RIng of Fire is located on the coast that surrounds the Pacific Ocean, there are 452 volcanoes and that’s 90% of all the volcanoes. Only 75% of the volcanoes are active to this day. In my paper I will mostly be talking about the location, creation, and the volcanoes in the RIng of Fire.

Most of Earth’s volcanoes are located in the _______________ around the Pacific Rim just beyond the oceanic trenches, where magma, which is less dense than the

The Earth’s outer crust is made up many tectonic plates that move over the surface of the planet. When the plates come collide, volcanoes will form sometime (National Ocean Service). Volcanoes can also form in the middle of a plate, where magma rises upward until it erupts on the sea floor, at what is called a “hot spot” (National Ocean Service). A hot spot is a plume of magma or molten rock that rises from within the Earth then reaches the surface forming underwater volcanoes which may grow tall enough to

Mount Vesuvius is one of the most well know volcanoes in the world. This massive volcano is located over looking the Bay of Naples, in the region of Campania, in Italy. Vesuvius is 4190-feet high and is made up of layers of lava flows, volcanic ash and cinders. It is considered one of the most deadly volcanoes in the world and is the most densely populated volcanic region in with millions of people living close to the crater. Vesuvius is a stratovolcano and is the only active volcano in mainland Europe. Mount Vesuvius has produced some of the continent’s largest eruptions.

The Pacific Ring of Fire is an area where 75% of the volcanoes on earth are located.

The Earth is always changing because of plate tectonics. Plate tectonics describes the behavior of earth's out shell, with pieces bumping and grinding each other about. Most of the world's active volcanoes are located along or near the boundaries between shifting plates and are called plate-boundary volcanoes. The Hawaiian Islands are one of the best examples of an intra-plate volcanic chain. They are developed by the northwest-moving Pacific Plate passing over an inferred hot spot that inmates the magma generating and volcano-formation process. The Ring of Fire in parts of the Pacific Ocean contain many active volcanoes which Mt. St. Helens is a part of. The zone along plate boundaries are the most geologically active regions on Earth.

Furthermore, Mount Vesuvius is rich in history and detail to be and learned from the age of the volcano to the types of rocks that can be found around and inside the walls of the volcano. Mount Vesuvius is a volcano located in near one of Italy’s largest Naples overlooking the bay. It is the only active volcano in Europe at this time that has produced a series of eruptions before the infamous eruption in 79A.D. to its last eruption in 1944.

Ash plumes and steam rose into the bright blue sky as the underground earthquake shook the land and rattled windows all across the eighteen mile town. As the jet circled the island, in view of lovely beaches and emerald water, looming over this lush paradise was the screaming volcano. Volcanos erupt when the pressure inside of them becomes so great that the magma surges up and forces its way out. An exploding volcano can rip apart a mountain in just seconds, when the eruption is over, a landscape is changed forever. The united states is home to more volcanos than any other country except Indonesia, and Japan. The majority of these volcanoes are in Alaska. Until recently, there was no way to predict when a volcano would blow, although volcanoes give off many warning signs before they erupt. Including smaller earthquakes beneath the volcano, slight inflation, or swelling. The rising magma eventually causes the solid rock to break, sending earthquake signals. Most volcanoes give warning signs beginning weeks or months before they blow (Lindop).

Many cultures created different myths that try to explain the reality of volcanoes. The English word volcano is derived from the Roman god of fire, Vulcan. The Greeks later defined Vulcan as the Greek God, Hephaestus. The myth states that Hephaestus was skilled in the art of blacksmithing and metalwork. The Greeks believed his workshop was beneath volcanoes such as Etna in Sicily. The sparks and flames that arose from the volcanoes were thought to be Hephaestus forging weapons for the Olympians. (Daly 122) In the Chinese culture dragons are worshiped and feared. According to Chinese mythology, Fucanglong, the dragon of hidden treasures, lives in the underground and guards the treasures of the earth. It is said that a volcano would erupt when Fucanglong sprung from the earth to the heavens to report on the status of his treasures. (Rosen 63)

On the 15th June of 1991, the second largest volcanic eruption of the twentieth century took place on the island of Luzon in the Philippines, 90 km northwest of the capital city Manila. It was also, by far, the largest eruption to affect a densely populated area. Mount Pinatubo, a stratovolcano, is part of a chain of volcanoes along the Luzon arc on the west coast (refer map). The arc of volcanoes is due to the subduction of the Manila trench to the west. The mountain has a very huge eruptive history. It was known to be thermally active and had been explored as possible geothermal energy resource by the Philippine National Oil Company. Mount Pinatubo is among the highest peaks in west-central Luzon. Its