December 4, 2012
The map below shows a storm surges of a Category 3 hurricane in Collier County, FL. The affected area has a population of over 200,000 that are at risk of a flood from a storm of this caliber.
December 4, 2012
The image below shows the tsunami risk area (red) of the coastal city of Ventura, CA. There are 52 facilities, which include medical centers, police stations, and schools that are at a high risk of being inundated and serverly impacted by a tsunami.
November 30, 2012
The image below shows the flow accumulation of Slide Creek in Forest Falls, CA. Without putting proper drainage infrastructure on the stream, these homes are located in a dangerous zone that is prone to landslides. The flow from the entire stream basin will collect and go through the development causing more damage in a landslide event. Measures should be taken in planning housing developments before they are constructed.
November 30, 2012
This image shows the angle of slopes in Forest Falls, California. Slope data is important for assessing the risk and vulnerability of a mass wastage event. The area was hit by a strong storm on July 11, 1999 that brought heavy rains and increased this risk. The predominant slopes on the map are greater than 60 degrees indicating areas of relative high relief.
November 30, 2012
The map below shows 5 landslide prone areas of the United States. The largest area susceptible to landslides is in the Appalachian Mountains because of the highly weathered bedrock and higher rainfall/humidity. In areas like West Virginia, coal mining has lead to land degradation and this increases the risk of landslides. Uplands in California especially along the coast are also susceptible.
November 29, 2012
The map below shows a 3D view of the areas that are impacted by the 100 year flood, which is set at elevations less than or equal to 780 feet. Many of the buildings on the lower part of the Eau Claire campus (low elevations) are impacted by floods of this caliber. The damages associated with this kind of flood would cost the university thousands and also affect nearby residences.
November 29, 2012
the image below shows the areas with an elevation less than or equal to 800 feet for Eau Claire, Wisconsin. If a flood reaches 800 feet, these areas will be impacted.
November 29, 2012
The image below shows the areas with an elevation less than or equal to 790 feet for Eau Claire, Wisconsin. If a flood reaches these levels, those areas will be impacted.
November 29, 2012
The image below shows the areas impacted by a 100 year flood (equal to or less than an elevation of 780 feet) near the UW Eau Claire campus in Eau Claire, WI. A 100 year means that a particular area has a 1% chance of having a flood of this caliber occur.
November 8, 2012
The image below shows the amount of cubic yards lost following the eruption of Mt. St. Helens in 1980. This shows that the blast was pointed in the northward direction where most of the loss is located. The total amount of material lost is approximately 3,900,000,000 cubic yards.
November 8, 2012
The map below shows topography of Mount St. Helens before its eruption in 1980. The mountain appears to be a normal mountain shape in this photo with a summit and lower elevations surrounding it.
November 8, 2012
The map below shows a Triangular Irregular Network (TIN) of lahar flow of Mount Rainier and the surrounding area. This shows that lahar caused by the melting of snow and ice from the summit of the volcano is likely to flow down the sides and into the surrounding channels that lead to other bodies of water. It is also likely that these channels lead to populated areas where lahar can be a huge threat.
November 8, 2012
The map below shows a two dimensional map of Mount Rainier in Washington. The difference in brightness is to show differences in elevation of the volcano.
November 6, 2012
The map below shows the Top 5 countries with the most eruptions in the world. The top 5 consist of Indonesia, Japan, United States, Russia, and Italy. The countries in the top 4 are located on or near the pacific ring of fire, which is where most of the volcanic activity occurs in the world. The other is Italy, which also sits on a plate boundary on the Mediterranean.
October 24, 2012
The map below shows the Peak Ground Acceleration (PGA) of the Los Angeles region after the Northridge Earthquake in 1994. PGA is used to measure the earthquake's intensity and shows high values for areas that experienced the most building damage density per square kilometer when the hazard event struck.
October 24, 2012
The map below shows the building density damage and ranks of soil liquefaction of the Northridge Earthquake in 1994. The areas in darker shades of blue indicate the number of buildings damage per square kilometer. The areas with the highest density of building damage show traces of soil liquefaction. This is where most of the damage from the Earthquake has occurred. Liquefaction is a major secondary factor that has an effect on the amount of damage done to structures during the event of an earthquake. The soil in these parts are loose and unconsolidate, which act as a fluid moving during strong shakes.
October 23, 2012
The map below shows urban areas that intersect quarternary deposits (soils) and have a 10% probability of exceeding .10g every 50 years. This means that these cities have the highest risk for ground motion and are also located on soil that is known to be common for earthquakes to strike. Most of the urban areas are located in the West (California), however there are a couple in other regions such as (Memphis, TN and Charleston, SC).
October 16, 2012
This map below shows the different soils in North America. You can see below the soils layer the current crop yield, which displays parts of the Midwest and south along the Mississippi River where yields were low. This low crop yield in these parts are due to the drought that occurred this past summer. The data was pulled from ESRI on ArcGIS Online.
October 16, 2012
The image below shows the Palmer Severity Index Map of the United States for the month of September this year. The reds and yellow show how dry an area is and the blues represent locations that are wet. This information is from consbio on ArcGIS Online and the also United States Forest Service
The image below shows the countries where tsunamis have hit between 1970 and 1993. If the map was to be updated, there would be more countries added to the list. This tells us how widespread these natural hazards can be.
I played the game "Stop Disasters" which gives the player a disaster scenario where they have to save as many lives as possible using the tools and resources available. These images show the Tsunami scenario and the defenses I used to best prepare the coastal village for a Tsunami strike.
The strategy here was to build enough
defenses close to the shoreline to prevent the strong waves from penetrating
inland. Sand dunes and boulders were places on the beaches and in the shallow
part of the ocean. Trees were also planted on the grassy areas inland from the
beach. Schools, hospitals, and housing were built on the highest terrain with
the lowest risk. People were able to use
these buildings as shelter for the tsunami. I also made some barriers to combat
the strong waves from the tsunami by putting sand dunes on the beaches and
putting up trees in open grass. Boulders were also placed in the ocean.
Although the death toll could have been way worse, land in low lying areas
could have been redeveloped to be stronger or moved to higher ground. Other
defenses could have also been built with the money that was left over at the
time they tsunami hit. I received a score of 30,130. 49 people died and some 40
more were injured. Hospitals and school remained intact and were used as
shelter.
I played the same scenario this time trying to cause as much damage as possible. These images show the before and after of the Tsunami strike.
I played the same scenario this time trying to cause as much damage as possible. These images show the before and after of the Tsunami strike.
Schools, Hospitals,
and housing were built as close to the ocean as possible. Rocks and sand dunes
that would have served as barriers were redeveloped into more housing. Defenses
were taken away from the village and the population was shifted to the
shoreline where the waves would hit the hardest. The mission report stated that
total damage was $23,000 and there were 279 deaths with 290 others injured.
Schools and hospitals were also destroyed in the disaster. Final score was a 0.
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