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MUDSLIDES

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Muds are a serious geological Hazard common to almost every state ... Muds are often triggered by earthquakes which makes them warning signs. Locations ... – PowerPoint PPT presentation

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Title: MUDSLIDES


1
MUDSLIDES
  • By,
  • Katie Buchmann
  • Jamie Mello

2
MAIN POINTS
  • What is a Mudslide?
  • Predicting Mudslides
  • Damages to towns
  • Safety issues
  • Future decisions
  • Locations of mudslides

3
  • Mudslides are a serious geological Hazard common
    to almost every state
  • The consistency of the flow can range from watery
    mud to thick, rocky mud that can carry large
    items such as boulders, trees, and cars
  • They can accelerate to speeds about 10 miles per
    hour, but can exceed 35 miles per hour

4
  • Flows from many different sources can combine in
    channels and the destruction is greatly increased
  • As they flow down hill they grow in volume
    collecting additional sand,water,mud,boulders,tree
    s,cars, and almost anything in their path
  • When they reach flatter ground the debris spreads
    over a broad area cause major damage to developed
    areas

5
  • Mudslides are easily predicted
  • Generally occur during periods of intense
    rainfall or rapid snowmelt
  • Often worsen the effects of flooding, areas
    burned by forest and brush fires, or a lower
    threshold of precipitation may initiate mudslides
  • Mudslides are often triggered by earthquakes
    which makes them warning signs

6
Locations
  • Areas that are prone to Mudslides include
    existing old mudslides, the bases of steep
    slopes, the bases of drainage channels, and
    developed hillsides where leach-Field septic
    systems are used
  • Area considered safe are relatively flat-lying
    areas away from sudden changes in slope, areas at
    the top of long ridges set back from the top of
    slopes, or places that have not moved in the past

7
  • Mudslides are common through out the Appalachian
    region and New England in the east
  • The Ohio, Missouri, and Mississippi Valleys in
    the Midwest
  • All Mountainous areas of the West
  • They are also common in Alaska, Hawaii, and
    Puerto Rico

8
Safety
  • Before a storm
  • become familiar with the land around you
  • Learn whether landslides and debris flows have
    happened there before by contacting local
    officials
  • Watch the patterns of storm water drainage on
    slopes near your home
  • Watch for any signs on land movement such as
    small mudslides or tilting trees

9
To protect your property you should make contract
with a private consulting company specializing in
earth movement for opinions and advice on
landslides problems and on corrective measures
you can take Also use caution when building your
home on any slopes and places that is prone to
heavy rainfall
10
Damages
  • Nationally mudslides cause up to 2 billion in
    damages a year
  • 25 to 50 deaths a year
  • Not much compared to other natural disasters
  • Destroys Homes, cars, and roads
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