What effect do volcanos have on the Earth? This essay is going to be about volcanoes and how many are active. How many volcanoes have erupted and how long to they last? Many volcanoes are erupting as we speak and more than a thousand have erupted in the past 10,000 years. A volcanic eruption can last up to thousands of years. Scientists don’t have an accurate count of all the volcanoes, but there are about a thousand magma systems. What causes them to erupt and what effect do they have on the…
Yellowstone Supervolcano: Case Study WHAT IS IT? The term “supervolcano” stands for an eruption of magnitude 8 on the Volcano Explosivity Index, indicating an eruption of more than 1,000 cubic kilometres (250 cubic miles) of magma. Yellowstone has had at least three past eruptions: The three being, 2.1 million years ago, 1.2 million years ago and 640,000 years ago, were about 2,500 times larger than the May 18, 1980 eruption of Mt. St. Helens in Washington State. WHERE IS IT? The supervolcano…
Believe it or not volcanos from the past are good for today. So back in the day when volcanos erupted they would deposit rock and minerals into the ground where farmers would have their crops. So today after so many years the soil where the farmers planted their crops is so rich from the deposit of rocks and minerals into the soil. For example when you have rich soil that means two thing that your crops are going to be good. Then the last thing that is that your pastures are going to be good…
If I were to ever be involved in an volcanic eruption, my first initial action would be to take shelter, or try to evacuate the area that’s potentially hazardous. This is something that no one prepares for if they aren't around volcanoes, but anything could happen in todays world. Its always best to have an evacuation plan for yourself and your family no matter the situation. There are many ways you could prepare. You should always make sure that you have emergency food and water. You should…
This week I learned about the three different types of volcanoes and the types of volcanic hazards associated with each type of volcano. This information is important to me because now I understand the hazards associated with living in certain parts of the country that have volcanoes. I understand that the volcanoes found in Hawaii (Shield volcanoes) erupt differently and pose different dangers than the volcanoes in the Cascade Mountain Range (Composite volcanoes). Since I live in Portland,…
Erta- Ale, is today the longest continually erupting volcano on the planet. It is pretty much a lake of lava that has been molten for over 100 years. These same volcanic forces are what created Ethiopia’s highlands. Seventy million years ago, Ethiopia’s land was just flat and deep terrestrial land. It wasn’t until molten lava rose from the Earth’s core and crated a huge dome of rock 500 miles wide: the roof of Africa. The summit is about three miles high and are home to some very…
This is due to the fact that it was what is called a phreatic eruption, or a shallow steam explosion, which is near impossible to predict (Oskin, 2014). Eruptions like these are caused by hot air escaping through cracks in the rock surrounding the volcano. Basically the heat escapes from the rock, superheating the surrounding…
To review a copy of the suppliers shipping records I would use the discovery method of document production. For document production I would need to submit a written request for the suppliers shipping records. To preserve the testimony of the Alaskan fisherman I would use the discovery method of deposition. A deposition is a formal questioning of a witness outside of court that is transcribed by a court reporter and can be referenced during trial. To get the supplier to admit before trial, that…
A volcano is a special type of mountain. The mountain opens at the top. Beneath it is a pool of melted rock, or magma, below the surface of the Earth. When certain kinds of changes happen, volcanoes can erupt. This means that the gases and melted rock below shoot up through the opening and spill over as lava. Eruptions can lead to lava flows, falling ash, mudslides, and much more. How do volcanoes form? Volcanoes form when magma deep within the Earth makes its way to the surface. When the…
The recent increase in injection induced seismicity is caused by a corresponding increase in wastewater disposal in the central United States. The earthquake rate increase in Oklahoma, where the vast majority of the increase has occurred (585 of 688 M ≥3 earthquakes in the central United States in 2014), corresponds to a doubling of the wastewater disposal rate in the state from 1999 to 2013 (Shultz 2014). Near the town of Prague, Oklahoma, the biggest earthquake ever recorded in Oklahoma…