Mount Etna Research Paper

With no prolonged periods of inactivity the volcano has continuously built up on itself. The last major eruption took place in 1790 and killed many people and animals, but numbers are unknown4. Starting in 1983 there was a chain of several eruptions that started and have yet to stop pushing lava through a lava tube till it reaches the Pacific Ocean. Over a span of twenty year the flow has

Volcanos are deadly, can form on islands or mainland, and can destroy mountains and cities. Volcanos commonly form from holes in the earth containing magma. When pressure builds up in these magma chambers, they explode resulting in magma and rock catapulting out into the air. As these volcanoes repeatedly explode, they leak magma, which runs down the side of the volcano. Eventually, the lava cools and transforms into solid rock, building up the volcano to mountain size. An example of giant volcanic eruptions is the Pompeii disaster in 79AD, when Mount Vesuvius erupted and destroyed all of Pompeii. Another example includes, the 1980 eruption of Mount St. Helens in Washington state, which destroyed the whole mountain. Volcanos

Have you ever been near a volcano when it erupted? Most of us haven't, but if you're unlucky enough, you just might have. Many people think it would be cool, but it is indeed not. In fact, the people of Pompeii were very unlucky when Mount Vesuvius erupted in 79 AD. Nearly two-thousand people died. Although that eruption was very similar to the 1980 eruption of Saint Helens, it was also very different.

● This was the first time this type of volcano eruption was actually witnessed and

On May 18, 1980 Mt. St. Helens erupted, and wrecked havoc on its surroundings through the debris avalanche, the lateral blast, the mudflows, and the ash that traveled halfway across the United States. It all began in March of 1980 when a 4.2 earthquake and 174 aftershocks let the world know that the volcano had woken

The first historic eruption of Santa Maria was the second largest volcanic eruption in this century. It was the third large explosive eruption in 1902. Mount Pelee and Soufriere of St. Vincent erupted six months earlier.” It also states that “The 1902 eruption of Santa Maria lasted 19 days.” Latitude: 14.76, Longitude: -91.55, Elevation: 3772, Country: Guatemala, Type: Stratovolcano.

Since Mount Vesuvius is so old, it has a long history of eruptions. The first known eruption was in 5960

Ask anyone in the Pacific Northwest to name a volcano in the area and you will most likely get the response of “Mount St. Helens”. There is good reason for this particular volcano to have gained such a great reputation for itself, and that is the eruption which occurred in 1980. Beginning in March, new systems of seismographs were being implemented to track the size of earthquakes that were happening in the St. Helens area. Earthquakes were recorded up to three times a day almost daily and on March 27th, an official warning was sent out as one of the quakes caused a stream of ash over 6,000 feet into the air. On the morning of May 18th, 8:32am, an earthquake measuring in at a magnitude of 5.1 on the seismograph signaled the beginning of the eruption.

There are 1,900 active volcanoes on Earth (National Geographic, 2016). Mount St. Helens, located in the Cascade Range which stretches across Washington is one of the volcanoes located in The United States. When a volcano erupts it can causes extensive damage in the wilderness and nearby civilizations.

The first sign of Mt. St. Helen exploding was a landslide starting at the rim of the summit crater. In 15 seconds, the north side of Mt. St. Helen was making its way down the side of the volcano. After the entire north side had collapsed superheated gasses and lava were released in a massive lateral explosion. This abrupt release of pressure created a nuees arfentes, “which is (in a volcanic eruption) a swiftly flowing, dense cloud of hot gases, ashes, and lava fragments.”1. The nuees arfentes wiped everything within 8 miles almost instantly. The shockwave rolled over the forest for 19 more miles forcing almost all of the centuries old trees to fall towards the north. After those 27 miles the trees remained upright but were burnt to death.

Helens was a huge eruption that happened May 18th, 1980. 57 people died from the smoke. By April it was growing 5ft per day. The mushroom clouds of ash and gases more than 12 miles into the air.” states livescince. “The shock wave went 19 miles” state's fs.usda.gov. Such pulse indicated magma was on the move. On May 18, there were hundreds of earthquakes that day. The eruption lasted 9 hours. The Mount St. Helens erupted at 8:32 A.M. It went as high as 1,300 feet (396 meters). Biggest eruption over 100 years. “The first eruption of steam from the summit sent a column of ash, snow and, steam 6,000 sent into the air”, livescince.gov There were a lot of things going on that day and

Volcano eruptions happen more often that you know it. They even happen in Alaska. Earlier this year a volcano in Alaska had erupted. This was Pavlof Volcano. This massive eruption had a large cloud of ash and debris more than 7 miles into the air. Pavlof Volcano is 625 miles southwest of Anchorage. Lava shooting out of the volcano was seen by many people near the area. Strong winds had also carried a lot of ash and debris throughout the interior of the state.

Dr. Richard Waitt inform us that the eruption on May 18, 1980 surprise scientists because they had a lot of data that they collected and that data didn’t indicated that an eruption was going to come on that day. When it blast in May 18, 1980, it destroyed everything in their path. For example, a total of 57 people were killed, thousands of deer, elk, bears, and other wildlife were killed, and the eruption had cut open a 2,000-foot-wide crater in the top. The landscape was unrecognizable by geologist who had spent about two months before the explosion on May 18 working up the volcano every day. It is interesting to know that discolored rock in the valley and in the crater wall were evidence that the mountain was decaying before the eruption.

In these eruptions, instead of the mixture of gas and ash flowing upwards, it flows outwards and hugs the ground. These eruptions are extremely dangerous.

On the 12th of June (Philippine Independence Day), millions of cubic yards of gas-charged magma reached the surface and resulted in the first major eruption which was then followed by a series of eruptions. It produced a 19 km long ash column and pyroclastic flows that extended up to four km from the summit to the river valleys. Later, a 15 minute eruption hurled ash straight up to the sky, reaching the heights of 24 km. The super heated air and the friction between