Earthquakes are natural disasters that are also referred to as a ‘quake’ or ‘tremor’. It is classified as a geomorphic hazard, which are elements of the physical environment that can cause damage, (economically and environmentally) such as Volcanoes, Tsunamis, Landslides etc. Earthquakes have been around for thousands of years but no one had properly understood the concept. Not one person, but a crowd of geologists and scientists had discussed this hazard and identified what it actually. There have been some weird beliefs about earthquakes such as earthquakes were caused by air rushing out from caverns underground.
What have they learned since the quake quite allot. The fault moved in a fashion that geologists of
The major fracture in the earth’s crust extends northwestward through southern and northern California for roughly 810 miles. According to the theory of plate tectonics, the San Andreas forms the tectonic boundary between the Pacific Plate and the North American Plate. Geologists describe the fault as right-lateral strike-slip, which means that the Pacific side of the fault is slowly moving horizontally northward, usually by an inch or two per year. Such movements deep in the earth produces earthquakes-and such movements along the San Andreas Fault have produced most of the largest earthquakes in American
Eckel, Edwin B., ed. Nevada Test Site. Memoir 110 Boulder, CO: The Geological Society of America, 1968
Earthquakes have impacted many areas in the United States, especially along the western coast in states like Alaska, Hawaii, and California. California is particularly vulnerable to earthquakes because it is located on the famous San Andreas Fault in the very seismically active Ring of Fire. Earthquake hazards are also prominent in many other regions across the United States including the Rocky Mountain region, the New Madrid Seismic Zone (a portion of the central United States), as well as portions of the eastern seaboard, specifically South Carolina. Close to “75 million people in 39 states” face considerable and recurring risks from contemporary earthquakes (Monahan 2). Owing to the destructive effects of California’s earthquakes in the past few decades and generally around the world, scientists have made an effort to locate and measure the size of an earthquake, predict a location’s vulnerability to earthquakes, and develop seismic warning systems in an attempt to reduce potential losses in...
"USGS: Volcano Hazards Program - Mount St. Helens Geology and History." USGS: Volcano Hazards Program - Mount St. Helens Geology and History. N.p., n.d. Web. 10 May 2014. .
“Navigation, in its simplest form, means to find your way to a point and back again.” For much of human history, naval navigation consisted of travelling on rivers and waterways, and when at sea, following the coastline so to not get lost. The compass changed that; sailors could boldly sail into the middle of an Ocean, and know that if they headed west, all they had to do to return was head east. The compass itself is a simple navigational instrument that contains a magnetic component that aligns itself with the Earth’s own magnetic pole, allowing the user to know the directions of North and South, and subsequently East and West. Due to the ease of use, and the efficiency of the compass, it played a major role in the Age of Exploration, and ergo played a major role in the shaping of today’s world. Due to its high importance, the compass was the most significant advancement in the field of navigation before 1350 A.D.
The earth was formed 4.6 billion years ago from the nebula cloud of gas that created the Sun and the other planets present in the Solar System. Ever since then, the earth’s surface has been constantly changing; the primary reason for this is because of tectonic plates. Even though, humans have existed on Earth for around 200,000 years, humans have been responding to the challenges of living on a planet with a constantly changing surface by using scientific evidence and technology to help them adapt to a constantly changing environment.
Once the Farallon plate disappeared, this brought the North American plate in direct contact with the Pacific plate. Initially the Pacific plate had being moving north, so when it first came into contact with the North American plate it didn’t subduct, but they rubbed against each other. This formed the San Andreas Fault
Plafker, George , Manuel Bonilla, and Samuel Bonis. "Geologic Effects ." The Guatemala Earthquake of 4 February 1976, A Preliminary Report 1 (1976): 38. Print.
In this week’s lab assignment, we are to do some independent research on a geologic topic that interests us. From there we are to create a list of questions that we would like to know more about. Then, we are to select a government agency professional, a business professional, a professor, a local geologist/astronomer/miner or a legislator who deals with some aspect of our topic and set up an interview with him or her to discuss our questions. Afterwards, we are to write up our experience while responding to several questions posed in the lab assignment. This paper and responses are the result of the research and interview process.
"Geology Fieldnotes - Katmai National Park and Preserve." National Park Service: Nature & Science» Geology Resources Division. 01 Apr. 2005. Web. Feb. 2014.
5. Spall, Henry. "Earthquakes & Plate Tectonics." USGS: Science for a Changing World. N.p., 6
"USGS FAQs - Earthquakes, Plate Tectonics, Earth Structure - What Is an Earthquake and What Causes Them to Happen?" USGS FAQs - Earthquakes, Plate Tectonics, Earth Structure - What Is an Earthquake and What Causes Them to Happen? N.p., n.d. Web. 15 June