Cascadia subduction zone

Dante Arguello EES:1030:0AAA Kosloski HOUGH 2009: Kashmir Valley Megaearthquakes Summary/Importance: The Himalayan mountain range, home to Mount Everest, is one of the most well-known mountain ranges in the world. This natural occurring structure has been a very popular destination for many tourists who visit to admire the gorgeous landform from a safe distance, as well as for those who attempt to achieve their life long goal of climbing the tallest mountain on the face of the Earth. Despite the…

A tsunami is a seismic sea wave. Displacement of water forms a sequence of waves and this generally happens in an ocean or a large lake.Tsunamis are different because normal waves are caused by wind or tides, which is actually generated by the gravitational pull of the Moon and Sun. According to Source 1, the first recorded tsunami was back in 7000-6000 BCE and this was in Portugal but the primary cause is unknown. Since then there have been many tsunamis that have caused damage, two of the…

1.1 Introduction to Landslide A landslide is a geological phenomenon, which includes a wide range of ground movements, such as deep or shallow failure slopes and rock falls. See figure 1.1. 1.1.1 Factors influence Landslides Landslides occur when the stability of the slope turns from the stable state to unstable state. Most of the Landslides usually cause depend on two main factors: (i) Natural Factors and (ii) Anthropogenic Factors. (USSG, 2004) (i) Natural Factors (a) Geological…

An earthquake is the phenomenon that a huge energy suddenly released and appeared in the Earth’s crust when two moved plates slip past one another. The earthquakes usually happen in the convergent boundaries, divergent boundaries and transform boundaries. In the three kinds of boundaries, the convergent boundary often produces the largest magnitude earthquakes. Because when the two plates collide strongly in the convergent boundary, the extreme pressure and the great friction will appear. So the…

rocks made up of basalt known as mafic. Mafic is an igneous rock made of mainly magnesium and iron. Oceanic rock is also 7-10 kilometres thick. It has a density of 3 grams per centimetre cubed. 9. Define the terms subduction, mid-ocean ridge, and ocean trench and island arc. Subduction is when two tectonic plate’s convergent boundaries come crashing together resulting in one going below the other. This results in the bottom plate to sink into the mantle. Mid-ocean ridge is an underwater…

Continental Drift Theory The Continental Drift can help the surface support the current by plowing through ocean basins. It also did not include seafloor spreading or subduction. So, that did not cause an earthquake because it would not support it if it did have an earthquake, because it would shake it. The seismic data discovered that there are zones of Earthquakes that dip down deep. The new ocean crust is forming in the middle of the oceans, while the older…

The plate tectonic theory was developed in the 1960’s and it is extremely important to have a fond understanding of as it is an explanation of the amazing scientific feats that have happened and are still happening in our world today. For example, it explains why the land we stand on is in its place, how volcanoes, tsunamis and mountains are formed and many more scientific phenomenon. This theory is that the outer shell of Earth is separated into multiple plates, which are floating on the mantle…

push and slab pull are the two processes that is in charge of the spreading of the mid ocean ridges. The ‘ridge push’ process occur when the growing part of the ridges keep on pushing the tectonic plate away from the ridge, most of the time to a subduction zone. This is where the other process come in, which is the weight of the tectonic plate is being pulled below the plate that is over and dragging the other plate along behind it. So how does it produce volcanic activity?…

karen Plate Tectonics There are two main ways scientist learn of earth saunterer is rock samples are rock sample from looking at the rock that comes from defence babanic explosion. The second main ways selected learn about earth centered is seismic waves seismic waves inderal travel thpro put where they travel speed path. Inconclusive this is how scientists learn about earth…

INTRODUCTION The science of magneto hydrodynamics (MHD) deals with geophysical, astrophysical and engineering problems since many years. This subject has attracted attention of many researchers in the MHD flow on Newtonian fluids on plate, cones and disks. Hari R [30] investigated the chemical and radiation effects on MHD casson fluid flow past an oscillating vertical plate embedded in porous medium. Subbaiah Naidu [70] studied the effect of Hall current on free convective flow of stratified…