It is located at the plate boundary between to the Eurasian and Philippine Plate. The aerosol cloud spread around the earth in two weeks and covered the planet within a year. The following year 3, homes were destroyed. Very few locals knew that Pinatubo was a volcano due to its dormancy for years , but thankfully, explosions were reported by the Philippine Institute of Volcanology and Seismology PHIVOLCS who conducted an aerial survey around the volcano which was partly inhabited by the indigenous Aeta People to find 3 explosion craters and columns of steam. Long and short term aid organized especially from the Red Cross and the United States.
The economy of central Luzon was horribly disrupted. The United States experienced its third coldest and third wettest summer in 77 years during The ash that was ejected from the volcano mixed with the water vapor in the air to cause a rainfall of tephra that fell across almost the entire island of Luzon. A blanket of volcanic ash sand- and silt-size grains of volcanic minerals and glass and larger pumice lapilli frothy pebbles blanketed the countryside. Ancient Pinatubo had a number of flank vents that formed the domes of Mount Negron, Mount Cuadrado, Mataba, Bituin plug, and the volcanic plug of Tapungho.
Just look how terrifying the picture on the right is!
Pinatubo is not expected to pjnatubo again for hundreds of years, assuming it keeps to its usual schedule. Huge avalanches of searing hot ash, gas, and pumice fragments pyroclastic flows roared down the flanks of Mount Pinatubo, filling once-deep valleys with fresh volcanic deposits as much as feet meters thick.
Fine ash fell as far away as the Indian Ocean, and satellites tracked the ash cloud around the globe.
Case Study 4 – Composite Volcano – Mount Pinatubo – Netherhall School GCSE Geography Case Studies
A blanket of volcanic ash sand- and silt-size grains of volcanic minerals and glass and larger pumice lapilli frothy pebbles blanketed the countryside. Remnants of this predecessor are seen mr the ancient caldera. Houses and bridges destroyed and needed replacing and Manila airport had to be closed.
The caldera reduced the peak from meters to meters. Heavy rainfall from Typhoon Yunga causes buildings to collapse.
This translated as a huge amount of pressure on the scientists and volcanologists, who had to considerpeople living nearby the volcano. But if the mountain did blow today, monitoring it would be slightly easier, thanks to 20 years of technological advances.
There was no monitoring until the 3rd of April but seismometers were put into place. The economy of central Luzon was horribly disrupted. Email required Address never made public.
Powerful volcanic eruptions
Thousands of roofs collapsed under the weight of ash made wet by heavy rains. Electricity went off, water was contaminated, road links were destroyed, and telephone links were cut.
Fast flowing volcanic mudflows lahars cause sever river bank erosion, undercut bridges etc.
In March and Aprilmagma started rising towards the surface from more than 20 miles beneath Pinatubo. This was a sign that stduy magma was pushing up against the surface, stretching and bulging the land above. 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.
Mount pinatubo – Mindmap in GCSE Geography
The new summit of the volcano was metres lower than what it was before the eruption. Research this excellent website. Placed strategies for long term aid and disease control in evacuations prepared for.
Prediction, Prevention, Aid and Monitoring. Over the next 3 days, there were more vertical eruptions and 13 smaller eruptions that produced pyroclastic flows molten mixtures of ash, gas and rock that can sweep over the landscape at more than 60 miles per hour.
But it is still difficult to predict eruption timing and scale. 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. It is reported that before the eruption, the Pinatubo volcano was actually 1,m high. Very few locals knew that Pinatubo was a volcano due to its dormancy for yearsbut thankfully, explosions were reported by the Philippine Institute of Volcanology and Seismology PHIVOLCS who conducted an aerial survey around the volcano which was partly inhabited by the indigenous Aeta People to find 3 explosion craters and columns of steam.
On June 5, a Level 3 alert was issued for two weeks due to the possibility of a major eruption. You are commenting using your Twitter account. Alert systems put into place to warn of eruption.
Only a few hundred people died in the initial eruption. What they actually did. There had previously been no monitoring, no collected data, no geological map and no hazards map.