It then resurfaces as the density of the molten magma becomes lower than that of the rock, and so it pushes it up through the small cracks and explodes out through a volcano. This was a sign that hot magma was pushing up against the surface, stretching and bulging the land above. Click here for full screen version. The United States Geological Service helped to predict the disaster. After the eruption, a lake was formed in the crated 2. At least 20, were estimated to have been saved from the eruption, largely due to aggressive monitoring and public information campaigns.

On June 12, the danger radius was extended to 30 kilometers Also the volcano ejected 10km 3 of magma. By June the volcano continued rumbling and emitting streams of ash. Alert systems put into place to warn of eruption. Pinatubo is not expected to erupt again for hundreds of years, assuming it keeps to its usual schedule. But it is still difficult to predict eruption timing and scale.

This team had a huge weight to bear on their shoulders in terms of correctly forecasting the eruption. Textiles, pharmaceuticals, chemicals, wood stuy, food processing, petroleum refining, fishing. Fine ash fell as far away as the Indian Ocean, and satellites tracked the ash cloud around the globe.

Powerful volcanic eruptions

This triggered more small earthquakes and caused powerful steam explosions that blasted three craters on the North side of the volcano. Back to Main Page. Damage following the Mount Pinatubo eruption was usually caused by lahars — rain-induced torrents of volcanic debris that killed people and animals and buried homes in the months after the eruption.


mt pinatubo case study gcse

Mount Pinatubo had been dormant for around years. There was no monitoring until the 3rd of April but seismometers were put into place. During the caldera lake on Mt Pinatubo rose to dangerous levels and the water changed color in January Fill in your details below or click an icon pinatubbo log in: Aroundother people from the low lying areas who were evacuated returned home afterwards, but it is clear that Lahaars are proving problematic, by burying towns and buildings.

Prior toPinatubo was a relatively unknown volcano, yet the Pinatubo eruption on Pihatubo 15 th was the second largest volcanic eruption of the 20 th Century-second in size only to the Katmai eruption in Alaska. It is located at the plate boundary between to the Eurasian and Philippine Plate.

Pinatubo Volcano Case Study () – geographywizard

Watch the Sulphur Dioxide cloud disperse on this movie. You are commenting using your Twitter account.

In March and Aprilmagma started rising towards mf surface from more than 20 miles beneath Pinatubo. Although much equipment was successfully protected, structures on the two largest U. Therefore, it is good to contrast 2 different countries in terms of the impacts and responses to past events. Ash spewed higher than it ever had before, and lahars, or mudflows, rushed down the slopes in a clatter of banging boulders.

It is reported pinatub before the eruption, the Pinatubo volcano was actually 1,m high. An evacuation area 20 kilometers This has huge influences on the economy. It is one of a chain of volcanoes known as the Luzon volcanic arc, which is the result of the Oceanic Philippine plate being subducted under gvse lighter Continental Eurasian plate.


mt pinatubo case study gcse

The United States experienced its third coldest and third wettest summer in 77 years during The impacts of the eruption continue to this day. Studt was a sign that hot magma was pushing up against the surface, stretching and bulging the land above. But it is still difficult to predict eruption timing and scale.

Despite it being possibly a little dated, it cade an incredible case study to carry on through your revision! Apologies for the delay in my first post to this post!

Mount pinatubo

The ash also damaged many land uses such as farming. Alert systems put into place to warn cwse eruption. The Volcano is slightly offset from the plate boundary as, when the Oceanic plate is subducted it is melted and forced away as molten magma by the high pressures exerted on it.

mt pinatubo case study gcse

This damaged all the seven seismic stations. Skip to content Advertisements. The first sign of an active volcano brewing occurred on June 16 thwhen a magnitude 7.