Even on the surface of the earth is hard rock, known as the lithosphere cools (lithosphere) is comp

One of the most terrifying natural disasters that man has always suffered from that ancient earthquakes, volcanoes .. which led to a series of devastating other equally intense food warmers for sale level as landslides, subsidence , cracked earth, tsunamis, tidal author, dike breaks, fire .. which is the most recent collapse fukushima nuclear reactor, Japan in 2011.
Earthquake (or seismic) is phenomenal ground shook, cracking strong or weak depending on the game (in a unit of magnitude). A single shock usually lasts no more than a few seconds, the most severe earthquake lasted only a maximum of 3 minutes, but the consequences can not be measured.
Even on the surface of the earth is hard rock, known as the lithosphere cools (lithosphere) is composed mainly of basalt and granite rocks. The continental crust and oceans are very different: the seafloor crust (sima book) is mainly heavy and dark basalt and only 5 to 10 km thick continental crust (book SIAL) thickness from 20 to 70 km and contains mostly lighter rocks.
asthenosphere layer (asthenosphere) is located immediately beneath the lithosphere, is one of molten rock at a temperature of about 900 C continuous non-stop movement style convection within the Earth's mantle, accompanied by tectonic plates ( Plate) above a speed of about 20-60 mm / yr. This process is known as continental drift, it is explained by the theory food warmers for sale of plate tectonics (learn more readers offline).
Thus, though very slowly, food warmers for sale the ground remains constant food warmers for sale motion, and the collapse phenomenon subsurface fracture occurs when the stress food warmers for sale is higher food warmers for sale than the physical stamina of the earth. food warmers for sale Most events occur at the boundaries of tectonic plates, based on which the researchers define the boundaries of data about the location of the earthquake.
7 major tectonic plates are: North America segment comprises the whole of North America and northeastern Siberia, the South American food warmers for sale Plate: includes all South American food warmers for sale - African continental plates array comprises food warmers for sale the whole of Africa - the continent Plate Eurasian Plate comprises the whole of Asia and Europe - continental plates array INDIA AUSTRALIA: include the entire Indian subcontinent and parts of the Indian Ocean and Australasia - continental food warmers for sale plates the Pacific Plate: includes the entire Pacific Ocean - the ocean array array Antarctica comprises the entire Antarctica - continental plates
The array is moved relative to each other in one of three types of plate boundaries: food warmers for sale convergent when two plates collide; Rift when two plates push each other away, transform the array slide along the fracture .. which formed food warmers for sale the mountains, and a large trench in the ocean.
When tectonic plates move, the ocean floor is subducted continental food warmers for sale edge or boundary in convergence. Meanwhile, the eruption of magma at divergent boundaries creates food warmers for sale mid-ocean ridges. The combination of these processes in oceanic crust pushes back cover. By this recycling process, the majority of the ocean floor no more than 100 million years old. The oldest food warmers for sale oceanic crust in the western Pacific food warmers for sale Ocean and approximately 200 million years old. Besides, the oldest continental crust is about 4030 million years old.
Earthquakes happen every day on earth, but most are not noticeable and do not cause much damage. When seismic bass over 5 on the Richter scale is starting to move shake shake, architectural collapse. In many cases, there are many more small earthquakes occurred before or after the main earthquake; these games are called aftershocks. The capacity of the soil to be spread over a large area, and in the large earthquake can spread out globally. Scientists can often be the point at which seismic waves begin. This point is called the focal. The projection of this point to the surface is called the epicenter.
Often times just before the earthquake or the tsunami was observed with the oil abnormalities in animals because they probably feel duocc changes food warmers for sale in the electrostatic food warmers for sale field, infrasound ... but not entirely reliable forecasts. To this day have not found a method to accurately predict the level large earthquake.
People do when an earthquake if the earthquake happens in the house right now, let's get under a large table or bed material can withstand multiple drops. So when the collapse is still breathing air. If the table moves, follow the table. If no, then find a corner under a table or standing at the door and. Avoid windows. Stay away from things that can fall into. Cover your face and head to keep from being hit by debris. If the power outage, use flashlights. Do not use candles or matches because they can cause a fire. If an earthquake occurs while on the road, away from buildings and power cord. Find the vertical space. If an earthquake occurs while driving, stop the car at the curb. Avoid the electric poles, wires, bridges food warmers for sale and roads.
Especially, if you're in the buildings: Absolutely not use the elevator because the earthquake or the resulting food warmers for sale loss of power and if the elevator would get stuck. Also keep t