INTRODUCTION Have you ever wondered what a volcano was ? Well, a volcano is a long tube that 's filled with lave. Also, lava is very hot and can burn you alive. What are volcanoes ? Volcanoes are openings in the surface of the earth from which gas or cold melton, or liquid, rock escape and cover the land with smoking hot lava.
There are many natural disasters that affect the world, for example, volcanoes. Mount St. Helens is known to be the most active volcano in the Cascade Range in Washington; effecting the people and the state. It was first recognized as a volcano in 1835! Before the eruption on May 18,1980, Mount St. Helens was a beautiful symmetrical cone, 3,000 meters above sea level. For most of the 20th century, many people viewed this mountain and recreation area as a beautiful and peaceful place, but after the volcano erupted in 1980 that view point was shattered.
This particular earthquake was the largest recorded earthquake for Japan prior to 2011 earthquake. 49 days after the Hoei earthquake, on 16 December 1707, Mount Fuji erupted from three vents located on its southeast flank [Tsuya, 1955]. This particular eruption was a plinian eruption that produced 0.7 km^3 of tephra [Miyaji and Koyoma, 2007], and the emission was of mixed and mingled andesitic and dacitic tephras that was then followed by basaltic tephra [Tsuya, 1955]. According to Chesley (2012), the conduit was opened and the basaltic magma was pushed out of the chamber by unclamping of the deeper dike along with compression of the basaltic magma chamber. This basaltic magma then moved up the dike from the basaltic chamber 20 km deep into the andesitic and dacitic magma chambers creating magma mixing and rapid vesiculation.
The first reason Uniformitarianism believe that what has happened to the earth geological has taken billions of years, and they believe the world is millions of years old (Barker,1998). Catastrophism think that large scale catastrophes hit the earth and change the geographic form in a short period of time, as well as the earth is young not old. Uniformitarianism does not think there was catastrophic events that happened on the earth, but that the earth changes slowly so things such as rainwater causes the soil to erode (Barker, 1998). Catastrophism think that the geological formations of the earth were battered from the molten rock and from the rock cooling it formed mountain ranges. Only through natural disaster the earth formed its present day
There are two different ways a Supernova can occur. The first way is when a white dwarf star, steals the matter from another star. The dwarf star obtains too much matter, and then it explodes. The second way, is when a star runs out of nuclear fuel, and the core of the star gets too heavy. The core of the star collapses because of the mass that is in the core, and it explodes.
F3 is called a severe tornados and the wind speeds are 158-206 miles per hour. There damage is roofs and some walls torn from buildings, heavy trucks lifted from the ground. F4 are called Devastating tornados and there wind speeds are 207-260 miles per hour. There damages are well constructed houses are blown off from foundations. F5 are called incredible tornados and there wind speeds are 261-318 miles per hour.
How glaciers affect the Rocky Mountains Intro The Rocky Mountains are located in the South West Canada and the North West America all through to central New Mexico. The highest peak of the Rocky Mountains is 14,255 ft. above sea level (encyclopedia). A brief history of the rocky mountain is that the way they were formed during the Mesozoic era when an earthquake occurred involving the plate from the ocean and the plate from the continental running into each other. The Oceanic plate is pushed under the continental plate causing volcanos and the land to be pushed inward causing the land to rise forming mountains (United States). Glacier are made from snow that is then compressed over the years that it turns into ice, they can be formed on both
Have you ever been in a earthquake? Have you ever been around a volcano eruption? I 'm here to tell you about these two natural disaster. I am going to include Mount Saint Helen 1980 eruption and the 1906 San Francisco Earthquake Mount St. Helens is well-known for its exceeding eruption in 1980, the most cruel and destructive volcanic action ever in U.S.. 57 people were killed, 250 homes, 47 bridges, 15 miles of railways, 185 miles of highway were ruined A giant fragments avalanche happened by an earthquake about 5.1 on the Richter scale made a eruption that decreased the elevation of the mountain 's peak from 9,677 ft to 8,363 ft, leaving a wide horseshoe shaped pit. The fragment avalanche was up to .7 cubic miles in volume.
The Earth’s crust has several moving pieces. They are composed of a variety of igneous metamorphic and sedimentary rocks. The tectonic plates are always colliding or pulling apart, creating mountains. Earthquakes and volcanoes occur at the edge of these tectonic plates because of the impact of the plate movements are greatest there. What would be interesting is what if plate tectonics never existed?