How Did The Ring Of Fire Volcanoes Circle The Pacific Ocean

Analyse the factors that causes differences in the hazards posed by volcanoes around the world (40 marks)

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

analyse the factors that cause differences in the hazards posed by volcanoes around the world (40 marks)

The highest point on the Kilauea Volcano is slightly less than 4,200 feet. In addition, it has a large caldera at the summit that is 3 kilometers by 5 kilometers wide at the main depression but is 6 kilometers by 6 kilometers at the outermost faults and goes down 165 meters deep. The entire area of the volcano is 552 square meters. The oldest rocks found on the volcano date back 23,000 years and scientists estimate that the first eruption occurred between 300,000 and 600,000 years ago. Despite this, about 90% of the basaltic shield volcano found on the surface is made from lava flows that occurred less than 1000 years ago while 70% of the actual volcano’s surface is 600 years old or younger. The volcano gets its name, Kilauea, from the Hawaiian word meaning much spreading or spewing, referencing the frequent lava flows.

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

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.

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

DePaolo, Edward, and Thomas, all professors and researchers of geology study hotspot volcanoes, and their impact on Hawaii. Their study is based on a major drilling project based in Hawaii. Drilling is a crucial aspect of gaining insight on volcanoes, because it provides samples of lava, which then provides information about Earth’s mantle. Scientists can then retrieve information from the mantle, such as the age of the volcano and its temperature. Experts say that drilling could be valuable for collecting information about other volcanoes and their mantles.

There are 20 volcanoes scattered throughout northern, central, and southern California: Medicine Lake, Mount Shasta, Brushy Butte, Twin Buttes, Silver Lake, Tumble Buttes, Eagle Lake, Lassen, Clear Lake, Mono Lake, Mono Craters, Long Valley, Inyo Craters, Mammoth Mountain, Ubehebe Craters, Golden Trout Creek, Coso, Lavic Lake, Amboy, and Salton Buttes. Some of these volcanoes are active, while others are not. A majority of the volcanoes are inland, with Clear Lake Volcano being the furthest west, located near Sacramento and San Francisco. (Refer to figure 3 to see main .k California volcano locations.)

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.

In the Northeast Pacific ocean lies Axial Seamount. We only discovered Axial Seamount in the 1970s. Axial Seamount is an underwater volcano 1400, below sea level. It sits on two large rift zones trending about 50 km (31 mi). It is located on the Juan de Fuca Ridge. When it erupts, it produces a mile wide lava flow, and it rises 13 meters (43 ft) so it is thicker.(Wikipedia) It is also one of the youngest volcanoes in the chain of

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.

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).

Currently with japan having so many earthquakes because of its location on 4 plates, we dont really know about volcanic earthquakes but nevertheless it exists.

The basic theory of plate tectonics says that all volcanic activity should occur between lithosphere plates (Physical Geology). However, the Hawaiian Islands bend this rule by being located directly in the middle of the Pacific plate. The Hawaiian volcanoes are known as intraplate volcanoes. This may not seem possible because it disrupts the rule of plate tectonics, but there’s the exception of a hot spot. T. Wilson suggested that the Pacific plate moved in the northwestward direction over a melting spot deep within the mantle, and this hot spot remained relatively stationary and supplied magma to the moving Pacific plate to form the Hawaiian Island chain (Volcanoes in the Sea). In order to prove this suggestion, the structure of the Hawaiian Islands must be in line with a hot spot origin. This will be