Mass Movement + Southern Leyte Case Study 5.0 / 5 based on 1 ratingTeacher recommended ? GeographyNatural hazardsA2/A-levelOCR Created by: StevenFoxCreated on: 23-03-16 15:10 Key info on Rockfall? Dry Movement Very Fast Rock is hard Common on fracutred surfaces (due to weathering) 1 of 34 Key info on Landslide? Coherent mass Wet periods + steep slope Relatively dry Hard yet absorbent rock Undercutting increases risk 2 of 34 Key info on Rotational Slump? Slumped rock remains intact Fairly wet Relatively fast Does not travel far Softer & unconsolidated (mud & clays) 3 of 34 Key Info on Mud/Debris Flow? Very wet Water(weight) + gravity = Dense fluid Can trasnport boulders Soft unconsonsolidated rock (Mud & clay) 4 of 34 Key info on Creep? Incredibly slow Very gentle slope Wavy surface (Undulated) Damp soil + gravity 5 of 34 When did the Southern Leyte Landslide occur? 17th February 2006, at 10:45 6 of 34 How many people were in the immediate area of Mt.Cana-bag? 2,000 7 of 34 Why had people only recently moved back to the area? There had been an evacuation a week earlier, but was called off, as authorities thought landslide threat had passed 8 of 34 Why was there an influx of people in the area on this particular day? The 5th anniversary of the Guinsaigon Women's Health Association was being held at the time 9 of 34 ----cm of rain in ---- days 200cm of rain in 10 days (Casued by La Nina) 10 of 34 What was the magnitude of the earthquakes prior to the landslide 2.6 on the Richter Scale 11 of 34 What has also been blamed as a cause for the landslide? Mining & Logging activites 12 of 34 How many billion cubic metres of mud was carried by the landslide? 1.2 billion cubic metres 13 of 34 How many people we killed and how many were displaced 1,126 killed and 19,000 displaced 14 of 34 Which village was most affected? Guinsaigon 15 of 34 Name examples of buildings that Guinsaigon lost? Healthcare centre, Elementry School, and Community Hall 16 of 34 More than ---- people died in 2 minutes More than 1000 people died in two minutes 17 of 34 What % of families lost 5 or more family members 60% 18 of 34 Roughly how many houses were buried by the flow? Over 500 19 of 34 How many communities hae been completely abandoned, and not maintained since the disaster? 6 communities 20 of 34 How much was lost in agricultural production? $46 million 21 of 34 How much was lost in property damage? $2.4 million 22 of 34 How much was lost in infrastructural damage? $22 million 23 of 34 Why did people move to other communities and take up other lines of work, like construction? Because the agricultural sector had been devastated in this community 24 of 34 How far did the new slope of Mt.Cana-bag spread It spread over 2km 25 of 34 ---- hectares of land covered in ---- to ---- metres of mud 45 hectares of land covered in 25 to 40 metres of mud 26 of 34 Give examples of 4 nations which provided aid? USA (Marines, Naval Vessels, $500k), China($1million), Taiwan(Month and a half worth of medicine) and New Zealand 27 of 34 Who were orphaned children taken care of by? Local mothers 28 of 34 What did the President of the Philippines order naval vessels to do? Act as a floating refuge for medical assistance etc. 29 of 34 What were local community buildings filled with? Survivors - for shelter 30 of 34 What two 24hr services were established after the disaster? 24hr emergency radio and operations centre 31 of 34 What was set up to help locals voice their concerns? A municipal website 32 of 34 What was done to communities in dangerous areas? Relocated 33 of 34 What work did experts do in the danger zones? Hazard mapping - to establish the most prone areas 34 of 34
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