On the morning of February 28, 2001 the Pacific Northwest was hit by a 45 second, 6.8 magnitude intraslab earthquake called the Nisqually or “The Ash Wednesday” earthquake. The Nisqually earthquake occurred when the Juan de Fuca plate subducted under the North American plate, this quickly released the built up strain. This was caused by mineral changes as the plate moved farther into the mantle. The Nisqually earthquake hit the southern end of Puget Sound causing damage to the ports of Seattle and Tacoma. Most of the property damage occurred near the epicenter. For example, in Seattle, the Alaskan Viaduct and its seawall were extremely damaged. In Olympia the Fourth Avenue Bridge was damaged. Following the earthquake liquefaction, sand boils,…
Most of the early revivals started in areas where the Spanish settled first, then started to migrate from there. Earlier revivals were free to adapt to American cultures, but in the early 20th century, these modifications and alterations were more true to the historical style. These differences were mostly caused by regional expansion, and caused different “styles” to be blended into American Architecture. The Ponce de Leon Hotel in St. Augustine, Florida was completed in 1888 and was one of…
Historical caudillos, Rosas and Peron Juan Manuel de Rosas is well known as a historical dictator in Argentina. He dominated Argentina from 1829 to 1852. Some people evaluated him as a caudillo to his enemies, but for his supporters, he was a hero who saved Argentina from disorganization. Although Rosas was a saver to some Argentina, he definitely was a caudillo. He had all caudillo characteristics. He was authoritarian and charismatic, and he was also a large landowner, and implemented…
were invaded and then colonized by Christopher Columbus and Juan Ponce de Leon. After Spain conquered parts of the Americas, it increased their knowledge of new land, also called ‘New World’. Using that knowledge, the Spanish took advantage of the high status that was given to them due to the substantial amount of newly-discovered land. The Spanish changed the New World in many ways, which caused Spain to become one of the most powerful countries throughout the sixteenth century. Columbus was…
1.1 Juan de Fuca Ridge - case study In Salmi et al. (2014) they deployed thermal blankets in a 450-700m area of a segment on the Juan de Fuca Ridge to examine the effects of hydrothermal circulation on very young oceanic 2 crust. The Juan de Fuca Ridge is a tectonic spreading center located off the coast of Washing- ton in the United States. The ridge is considered an intermediate spreading ridge as it spreads 5.6-5.7 cm/yr. Several methods exist to measure the heat flow, some measure the…
The purpose of this paper is the explain a natural phenomena, Axial Seamount. Even if the reader has no knowledge of Axial Seamount, they will be able to fully understand the content of this paper. They will learn facts about Axial Seamount such as what it is, on what plates it is located on, what landforms are around it, etc. Axial Seamount is an underwater volcano located in the Northeastern Pacific Ocean, about 483 kilometers (300 miles) off the coast of Oregon. Because its frequent volcanic…
Earthquakes may be caused by the movements of magma within a volcano’s chamber, but also vice versa with heavy seismic shifts cracking open into the inside of a nearby volcano. Both volcanoes and earthquakes can associated with tectonic plate movements as well. According to the National Oceanic and Atmospheric Association, “the Ring of Fire is a string of underwater volcanoes and earthquake sites around the edges of the Pacific Ocean.” Most of the Earth 's volcanoes and earthquakes occur around…