Journal of Petrology, v. The map was based on the maximum known extent of each type of deposit from past eruptions and was intended to be a worst-case scenario. Description, effects and lessons learned. Ashes from the eruption of Pinatubo cover the U. Most of them had to wait in resettlement camps for a while until they return home. Most of the deaths more than people and injuries from the eruption were from the collapse of roofs under wet heavy ash. Among these is the construction of mega dikes.

The cost to agriculture of eruption effects was estimated to be 1. After the eruption, many of the homes were destroyed and many of the areas affected by lahar were deemed uninhabitable. There was 10 cm of ash covering an area of square kilometers square miles. The oldest eruption of modern Pinatubo, Inararo, was also its largest. Central Luzon Region , Luzon , Philippines. By using this site, you agree to the Terms of Use and Privacy Policy. The Clark Air Base sprawled over nearly 10, acres with its western end nestled in the lush, gently rolling foothills of the Zambales Mountains—only 9 miles 14 km east of Mount Pinatubo.

geography case study mount pinatubo

However, the eruption was only minor, and since that episode, the volcano has been quiet. Retrieved 13 June Pinatubo is not expected to erupt again for hundreds geoggraphy years, assuming it keeps to its usual schedule.

The final, massive eruption of Mount Pinatubo began at Rain continued to create hazards over the next several years, as the volcanic deposits were remobilized into secondary mudflows.


Mt pinatubo case study

It was covered with dense forests which supported a population of several thousand indigenous Aetas. Retrieved July 25, To address this careful replanning of the land area region is necessary.

The caldera reduced the peak from meters to meters.

Pinatubo, scientists recorded a landslide, some teography earthquakes and a short lived increase in steam emissions from a pre-existing geothermal area. Timely forecasts of an eruption by scientists from the Philippine Institute of Volcanology and Seismology and the U. There had previously been no monitoring, no collected data, no geological map and no hazards map.

Remembering Mount Pinatubo 25 Years Ago: Mitigating a Crisis

Retrieved from the original on August 15, Government Printing Office, Washington, Google Image Search source: What they could have done. Notify me of new comments via email. Despite it being possibly a little dated, it is an incredible case study to carry on through your revision! The Tarlac Formation north, east and southeast of Pinatubo consists of marine, nonmarine and volcanoclastic sediments formed in the late Miocene pinayubo Pliocene.

Powerful volcanic eruptions

You are commenting using your Google account. Fortunately, the flow stopped before it reached the building.

geography case study mount pinatubo

The eruption had a significant effect on ozone levels in pimatubo atmosphere, causing a large increase in the destruction rate of ozone. On July 16,the major Luzon earthquake of magnitude 7. Relief assistance from these organizations and countries were in the form of either cash donation or relief items such as food packs, medicines, and shelter materials.

The approved and declared net land area of 7, Conditions on these were poor, with each family receiving only small plots of land not ideal for growing crops. The eruption removed so much magma and rock from below the volcano that the summit collapsed to form a large volcanic depression caldera 1.


Chakraborty P, et al. There is no doubt that with the communication and monitoring tools available to us today, mouunt would learn much more about the buildup to the eruptions and have more and better data to guide our decision-making. Many of these roof failures would not have occurred if there had been no typhoon.

Mount Pinatubo – the impacts of

The old volcano is exposed in the walls of an old 3. Ozone levels at middle latitudes reached their lowest recorded levels, while in the southern hemisphere winter ofthe ozone hole over Studt reached its largest ever size until then, with the fastest recorded ozone depletion rates.

On April 2, the volcano awoke, with phreatic eruptions occurring near the summit along a 1. Almost all of the island received some wet ash fall, which formed a heavy, rain-saturated snow-like blanket. The greatest thickness of ash deposited 33 centimeters 13 inches approximately The ash cloud rose 28 miles 40 km into the air.