Miss Quinn

The wanderings and musings of a Geographer
Browsing Y7 Tectonics

Hawaiian volcano threatening homes

September8

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Kilauea, the largest volcano in Hawaii is currently threatening homes. The volcano has been erupting for 31 years but it’s lava is now moving towards built up areas at a rate of 250m per day!! 

BBC story about Hawaiian volcano

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Hawaii is unusual because unlike other volcanoes it isn’t the boundary of tectonic plates. Instead it is above a thin part of the earth’s crust. We call this a hot spot volcano.

Hawaii is one of the best places in the world to see active volcanoes. The video below shows you some of the amazing footage of the eruption.

Hawaiian volcanic eruption video

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Boxing Day Tsunami 2004

July1

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On Boxing Day 2004 we woke up to discover that a horrific tsunami had struck Thailand (and many other SE Asian countries).  The tsunami was the result of an earthquake under the sea that measured 9 on the Richter scale.

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The waves travelled around the Indian Ocean and destroyed villages, towns and whole islands in their path.  The scale of the destruction was huge and because it was during the school holidays when many people visit beautiful resorts in Thailand it didn’t just affect locals.  In total almost 250,000 people died.

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This link will tell you some of the stories of those who lived through the disaster  http://news.bbc.co.uk/cbbcnews/hi/specials/2004/asia_earthquake_disaster/default.stm film fbae04185cf211e3b05212a6e2c83f33_8

Another amazing story to come from the Boxing Day tsunami is that of Rob and Paul Gandy.  These brothers were travelling with their family in Thailand when the tsunami struck and lost both of their parents in the disaster.  They decided to do something to help other orphans and so a percentage of their profits is used to house and support orphans in LEDCs.

Find out more about their story here – http://www.gandysflipflops.com/our-journey

And this article discusses the film – the Impossible.  Apparently (according to a survivor who was in the same resort as the family in the film and ended up in the same hospital, its very accurate.

http://www.theguardian.com/film/filmblog/2013/jan/04/the-impossible-beautifully-accurate-film

 

 

 

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Y7 Montserrat

April25

Montserrat is an Island in the Caribbean.  It is on the edge of the Caribbean Plate and as a result it is volcanic

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In 1995 the volcano in the south of the island, Soufriere Hills erupted and buried much of the south of the Island and the capital, Plymouth.

Plymouth after the eruption …

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Your task, in your group is to decide how best to rebuild the south of the Island.  You have four years and £84 Million to spend.

Each year you need to have a target or priority e.g. Build transport and energy infrastructure or focus on food and drink production.  You then have to plan how to spend your money to achieve this.

You should present these ideas next lesson in your groups.  Attached are a copy of the Price List and a GREAT EXAMPLE

 

 

 

Volcanic Eruption at Tungurahua

April5

Tungurahua, one of the active volcanoes in Ecuador has been in the news today because of it’s amazing ash eruptions which have forced local residents to be evacuated.

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This isn’t the first time the resident have been disturbed, Tungurahua has been erupting for two years already!!

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The volcano is one of the 800 (ish) active volcanoes in the world and is on the edge of the South American and Pacific tectonic plates, in an area called the Pacific Ring of Fire. http://www.bbc.co.uk/news/world-latin-america-26901834

 

 

 

 

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Mount St Helens Eruption

January29

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You should now have a clear picture of events on May 18th 1980 but just in case here are some facts to help you and the presentation we used in class  Mt St Helens video CLICK ON THE LAST FEW (WORDS THAT ARE UNDERLINED)  TO GET TO THE PRESENTATION. 

Build Up

  •  The volcano was dormant for 123 years
  • On 20th March 1980 there was an earthquake measuring 4.1 on the Richter Scale right underneath Mount St Helens.
  • This was the start of 10,000 earthquakes over the next two months.
  • The old crater was blocked by a plug of old magma which had hardened.
  • The magma couldn’t move up so it moved to the north.
  • This created a bulge on the side of the volcano that grew at 6feet / 1.8m each day
  • Scientist arrived to try to find out what was happening.
  • They watched the volcano’s shape change until by mid-May the bulge was 1 mile 3
  • In early April the area was evacuated so that people would be out of harm’s way. Harry Truman refused to leave

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The Eruption

  •  18th May 8.32am an earthquake measuring 5.1 (the largest to hit the area so far) shakes the mountain and makes the top of the bulge slide forward.  This releases the magma and starts the eruption
  • The bulge moves down the side of the volcano forming the biggest landslide ever in the USA
  • The blast is both upwards and sideways
  • The ash and dust and rocks are travelling north west at 700 miles per hour.
  • Within one minute the volcanologist David Johnston is dead.
  • Spirit Lake which is just in front of Mount St Helens is covered and Harry Truman dies by 8.34am.

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 The effects

  • Every living thing within 17miles of the volcano died.
  • Millions of trees were flattened.
  • 57 people died
  • Plumes of ash and smoke can be seen for miles
  • Mount St Helens has a new shape
  • 370 square miles of land lie devastated
  • The rivers in the area were full of ash so they flooded easily
  • The trout and salmon that lived in the river were killed by the ash
  • The ash that landed on the ground made the soil fertile so the millions of trees that were planted there afterwards have thrived

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