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).
Nevado del Ruiz Case Study The Eruption and its Impacts What happened? On November 13th, 1985, the Nevado del Ruiz volcano erupted triggering destructive lahars, which caused approximately 23 000 human deaths, 4500 were injured and, following the catastrophe, 8000 became homeless . Signs of seismic activity can be traced back to July of the same year, where seismograph on the mountain showed uncharacteristically seismic activity levels . Later, in September 1985, not only had the level of seismic activity increased in the region, but steam explosions accompanied them . In November, seismic activity was observed near the summit of the volcano .
5:12 a.m., Wednesday, April 18, 1906, one of the most devastating earthquakes in the history of the United States hit the heavily populated city of San Francisco, California. This violent earthquake caused extensive and expensive damage and deaths across the city and even resulted in a fire that raged throughout the city for four full days after the earthquake. While the exact casualty tall is uncertain modern scientist estimate the death toll to be around 3,000 people with rough 25,000 left without a home(_____________3________________). However, all was not lost, from the rubble and ashes of San Francisco scientists, seismologist, and geologists alike were able to make improvements upon earthquake technology and better define what causes
Helens or Louwella-Clough is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It last erupted on July 10, 2008, but is most famous for its eruption in 1980 which killed more than 57 people and killed thousand of animals. It cause about a billion US dollars to repair. Mount St. Helens is famous for its 1980 eruption. It is one of the world’s most active stratovolcanoes.
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.
(National Geographic News, 2015). The tsunami resulted in at least 227,000 fatalities, destroyed 141,000 houses and took away the livelihood of more than 600,000 people. (The Bolton Council of Mosques, 2015). The force of the earthquake was thought to have had the energy of 23,000 Hiroshima-type atomic bombs. The cause of the earthquake and
An earthquake is when the Earth’s surface shakes in response to the sudden release of energy in its lithosphere which then creates seismic waves . There were two earthquakes that occurred before the tsunami; this is known as a ‘triggered duplet” . The first earthquake was a magnitude 8.1, the second an 8.0. The first triggered
How and Why Do Earthquakes Happen? World Geography Janet de Guzman Puriyod Laohabutr Grade 9G March 13, 2018 HOW AND WHY DO EARTHQUAKES HAPPEN? Abstract Introduction What are Earthquakes? An Earthquakes takes place when two blocks or pieces of the Earth’s crust suddenly slip pass one another or, the piece of land collided into each other. The surface where they slip or collide is called a “fault place”.
A tsunami event that occurred in 2004 , called the Boxing Day Tsunami, displaced 1.7 million and injured half a million of souls. A total of 230,000 people were killed (Telegraph,2014). Tsunamis are giant ocean waves that are triggered by an earthquakes or volcanic eruptions. These ocean waves will grow in height as they travel inland, due to the depth of the ocean decreasing. The world responded with donations and relief efforts to countries affected which included Indonesia, Thailand, Somalia, Sri Lanka, Burma and Maldives.