Earthquakes are caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two plates are rubbing against each other, they stick a little. Most earthquakes occur along the edge of the oceanic and continental plates. Due to stress they shift and cause the earthquake.
Convection Currents The Alaskan Way Viaduct will collapse if an earthquake happens. Tectonic plates rubbing together causes an earthquake. What causes them to rub together? An earthquake happens through a sequence of cause and effect. Altogether, temperature, density, and convection currents work together to cause an earthquake.
Tsunamis happen when the plates on the crust of the earth move, therefore moving the entire plate so that the water rises and is pushed forward, therefore causing a tsunami (Drohan, 2009, p.21). These tectonic plates are everywhere, under everything from the biggest mountain to the smallest hill. Though it is infrequent, volcanoes have been known to cause tsunamis. It happens when to volcano begins to erupt, but instead of coming out from the top of the volcano a lateral blast shoots out from the side. Next, a quickly moving avalanche of lava pours into the water near it causing the wave to travel to distant coastlines (Springer, 2005).
Following the gentle explosions of the pre shield stage, the submarine phase begins with pillow lava eruptions. The volcano slowly makes its way up to sea level and the submarine phase ends when it is shallowly submerged. The explosive phase begins when the volcano breaches the surface. Upon contact to air, a large amount of steam is produced and the lava becomes volcanic ash. Following the explosive phase is the subaerial stage which primarily consists of the “shield” shape forming and landslides.
The earthquake happened because of the movement from the San Andreas Fault (u-s-history.com) .This little movement from the tectonic caused big things such as earthquake, but what exactly is San Andreas Fault? San Andreas fault is major fracture of the Earth’s crust in extreme western north America (Brittanica). San Andreas fault have caused so many earthquakes in U.S.A, causing many destruction, and causing lost of lifes. Now, What made Northridge Earthquake so destructive? While the Northridge earthquake was happening Californian people couldn’t predict it (u-s-history.com).
00Earthquakes occur almost daily due to the fact that Costa Rica lies between two tectonic plates: the Carribean plate and the Coicos plate. These two plates push and shove each other causing small tremors throughout which can cause landslides,volcanic eruptions and once in a couple years, quakes with devastating results. The strongest earthquake recorded occurred in 1991 with a measure of 7.6 on the Richter scale. This earthquake left 4 dead and buildings as well as bridges and road were completely destroyed. If another Earthquake occurs, the coastal cities would be the most affected ones as they are closer to the plates.
“This quake was so big”(Los Angeles Times 2). “The most important conclusion is not to panic”(Scientific American 2). In July 1958, Lituya Bay, Alaska was hit by three Geo processes. These were a massive earthquake, a harrowing rockslide, and a devastating tsunami. In 1980, Mt.
Seismic waves are made when some kind of energy stored in Earth’s crust. Natural events such as volcanic eruptions and meteor impacts can cause earthquakes, but most of the naturally-occurring earthquakes are activated by movement of the earth 's plate. The Haiti Earthquake included many details common to Earthquakes and caused damage and destruction to property and lives that affected the region, but the area has recovered in its after math. Many parts of this disaster are common to Earth Quakes like the Haiti Earth Quake .Haitian capital of Port-au-Prince was a part and was also hurt. The disaster was a Earthquake it
Except Mount Vesuvius is not just a mountain. It is a volcano. Vesuvius sits atop a crack in the earth’s crust— the hard, rocky layer that covers the surface of our planet like the shell of an egg. From miles below, molten rock called magma seeps up through this crack.The people of Pompeii have no idea that a huge lake of magma is boiling under Vesuvius steaming with poisonous, explosive gases. How could they?
Earth quakes are caused when tectonic plates build up pressure by colliding with another tectonic plate by suddenly releasing the energy and causing them to snap. Tsunamis are caused by earth quakes when the energy is released in the water. Volcanoes are created by inter-plate activity where magma pushes up between cracks in tectonic plate boundaries , the drift of hotspots in continental plates which pushes magma through the surface. Islands are formed when sea mounts which is an under water volcano appear above the water as they erupt they build up layers of lava that may eventually break the waters surface, thus causing a island to appear over geological