Mount Tambora is a large stratovolcano located on the island of Sumbawa, Indonesia. It lies approximately 210 miles north of the Java Trench and is flanked to the north and south by oceanic crust. Its current summit elevation is around 9,350 feet (Smithsonian Institute). To the south-east of the volcano lies the Sanggar peninsula, which is a part of Tambora. There are two cities, Dompu and Clima, and three concentrations of villages near the mountain slope: Sanggar, Doro Peti and Pesanggrahan, and Calabai.
Figure 1. Map of Mount Tambora and Sumbawa
Mount Tambora is best known for the eruption that occurred in April 1815. The eruption was so large it ranked 7 out of 8 on the Volcanic Explosivity Index scale. The number of deaths due to the eruption alone was estimated at 11,000 with an additional 49,000 by post-eruption famine and epidemic diseases (Tanguy, Ribiere, Scarth, & Tjetjep, 1998). A more recent estimation placed the total number of deaths at 71,000 (Oppenheimer, 2003).
So what events led up to this violent eruption? A scientist used qualitative and quantitative data to reconstruct a timeline. Three years prior to the April 1815 years the volcano began to rumble and generate a dark cloud around the summit. Then in the early evening of April 5th 1815 there was a moderate-sized eruption. The detonations sounded like the discharge of cannons and could be heard as far away as Ternate, 1400km away (Stothers, 1984). A man by the name of Sir Stamford Raffles heard these sounds wrote:
“The first explosions were heard on this Island in the evening of 5 April, they were noticed in every quarter, and continued at intervals until the following day. The noise was, in the first instance, almost universally attribut...
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Stothers, R. (1984, June 15). The great Tambora eruption in 1815 and its aftermath. Retrieved May 3, 2011, from Academic OneFile: http://find.galegroup.com.ezproxy.lib.apsu.edu/gtx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T002&prodId=AONE&docId=A3309276&source=gale&srcprod=AONE&userGroupName=tel_a_apsu&version=1.0
Tanguy, J.-C., Ribiere, C., Scarth, A., & Tjetjep, W. (1998). Victims from volcanic eruptions: a revised database. Bulletin of Volcanology , 137-144.
University of Notre Dame. (2006). tambora expolosion.jpg. Retrieved May 3, 2011, from University of Notre Dame: http://ocw.nd.edu/physics/nuclear-warfare/images-1/tambora-explosion.jpg/view
Wickens, S. (2004, May 14). 1816- The year with a summer. Retrieved May 3, 2011, from Scribd: http://www.scribd.com/doc/323747/1816-Eruption-of-Mt-Tambora-The-year-without-summer
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Wood and Kienle, 1990, Volcanoes of North America: United States and Canada: Cambridge University Press, 354 p., p. 158-160, Contribution by Patrick Pringle.
On May 18th, 1980, one of the most prominent volcanic eruptions in US History took place in the state of Washington. Mount St. Helens had been dormant for almost 100 years before March 15th. On this day, two months before the eruption several small earthquakes shook the earth. This indicated a magma buildup below the surface, and the first minor event that would lead to one of the greatest eruptions the US has ever known. Following the first set of earthquakes, “Steam explosions blasted a 60- to 75-m (200- to 250-ft) wide crater through the volcano 's summit ice cap and covered the snow-clad southeast sector with dark ash. Within a week the crater had grown to about 400 m (1,300 ft) in diameter and two giant crack systems crossed the entire summit area. Eruptions occurred on average from
In March 18, 1880 Mount St. Helens there was a catastrophic eruption that caused a huge volume of ash; the ash plume would be over central Colorado within 16 hours. After years of dedicated monitoring (knowing where to volcano is, unlike an earthquake not knowing exactly where this geological even is exactly) there was been increasing accuracy in forecasting eruptions.
...e than 30 volcanoes that have erupted over the past 300,000 years in the Lassen Peak volcanic area.
Volcanoes. The naturally forming landforms that can look remarkably beautiful. Gentle slopes, or high rising heights with snow caps and greenery that seems to attract many tourists and sightseers around the world. These magnificent landforms can also cause major destruction and can produce forces that can explode, burn, and create a great deal of damage. Two of these extravagant wonders of the world is the Mount Saint Helens composite volcano in Washington, US, and the Mauna Loa shield volcano in Hawaii, US. These landforms have a eruption history of many colors. One has a great power in eruption, but another has a eruption that is quiet and gentle. In comparing these two volcanoes there are many likes, and dislikes, to consider. So the following
The most iconic volcanic eruption in history was the eruption of Mt. Vesuvius in 79 A.D. Mt. Vesuvius is located on the west coast side of Italy. Pompeii was the ancient town five miles from Mt. Vesuvius where people would flock to the area in 79 AD to be near the Bay of Naples. Little did they know that the volcano would erupt into the most destructive volcano in history. Mt. Vesuvius has erupted about three dozen times and was the most disastrous due to the large population around the area. The volcano, which is still active today, is a stratovolcano. A stratovolcano has pyroclastic flows and erupt explosively and violently. Pyroclastic flows don't necessarily look exactly like “flowing eruptions”. These eruptions are not the “flowing” type of eruptions because they are eruptions with explosions and blowing clouds that fill the air. These clouds are usually dark clouds that are made up of ash. Pompeii had some signs of the volcano erupting, but the technology was not like the technology of today where scientists can monitor the volcanic activity.
Weisburd, Stefi. "Volcanoes And Extinctions: Round Two." Science News 131.16 (1987): 248-250. Health Source - Consumer Edition. Web. 13 Jan. 2014.
The first time I saw Mt. Rainier for myself, was last summer when my boyfriend and I drove to Washington. It was the most beautiful, peaceful looking mountain I have ever seen. However, underneath it's great beauty, it hides a deadly secret. Mt. Rainier is one of the most dangerous volcanoes that we have here in the United States. One of the reasons it is so dangerous is because of it's great beauty. People enjoy looking at it, and the area that surrounds it, so they have made their homes here. Mt Rainier is not the only volcano I am interested in, in fact this last summer I also went to Mt. St. Helens and Crater Lake. But it is the volcano I chose to research for this paper because it does have so much beauty and at the same time so much power. I already know the basics about volcanoes, how they form, the different types, etc., but I wanted to find out more about what would happen if this great volcano were to erupt, what type of eruption would it be, and how would it affect the people that live around it.
From modern examples and records we know that volcanic activity can set of a chai...
Boom! A once ice-capped mountain peak explodes as ash fills the air. “‘Vancouver, Vancouver, this is it!’”Those were the last words of expert geologist David Johnston (Gunn 561). In 1980, Mount Saint Helens of the state of Washington erupted, filling the air with ash and causing mudflows powerful enough to lift tons. It decimated everything in its path. The eruptions, mudflows, and ash caused great damage on the landscape, yet it gave us information on how catastrophes happen and how they affect society and the surrounding landscape. The data acquired can also help us understand the way the landscape was formed. Mount Saint Helens caused much damage, but also helped people understand the science behind it.
Over 50 people were killed when the volcano in central Japan erupted without warning on 27 September, the country’s deadliest volcano eruption since World War II. Several hundred people were thought to have been on the mountain when it erupted at 11.52am.
Volcanoes can be one of the most destructive forces on Earth. It is estimated that some
Mount Tambora, located on the Island of Sumbawa, Indonesia is classified as a Stratovolcano. Also known as a composite volcano, Tambora is a tall conical volcano (cone like structure) where layers of the walls are built by hardened lava and volcanic ash. The term composite is used to describe the volcano due to the composite layered structure built from sequential outpourings of eruptive materials1. Among the most common types of volcanoes, Tambora also shares its destructive prowess with best-known volcanoes such as Krakota (1883) and Vesuvius (79 A.D). The Island of Sumbawa is located in the middle of the Lesser Sunda Islands chain (a group of islands in the southern Maritime Southeast Asia) and is in the province of West Nusa Tenggara3. A map of Mount Tambora is shown in Figure 1 to provide a better perspective of its location. Interestingly enough, Tambora forms its own peninsula on Sumbawa, known as the Sanggar Peninsula. In April of 1815, after years of dormancy, Mount Tambora erupted with great intensity, approximately 7 on the volcanic explosivity index, which is shown in Figure 2. It has been estimated that the eject volume of Tambora was 160 cubic kilometres, which represents the largest volcanic eruption in recorded history. The death toll has been projected to be at least 71,000 people, of who over 15% were killed directly from the eruption1. The remaining 75% have been thought to succumb to starvation and disease, as the eruptive fallout decimated the agricultural industry in the region. Following the eruption, a volcanic winter ensued. As sun become less abundant due to clouds of ash, crops and livestock perished. Please note that all definitions appearing in the footnotes are either taken from already referenced so...
Mount Vesuvius is a volcano located in southern Italy, near the bay of Naples and the city of Naples. It is the only active volcano on the European mainland. Vesuvius rises to a height of 1277 m (4190 ft). Vesuvio (Vesuvius) is probably the most famous volcano on earth, and is one of the most dangerous.