- query earthquake attributes to reveal how depth and magnitude relate to spatial location
- use GIS to identify features at risk during an earthquake
- map earthquake data and local geology to determine seismic hazard
- explain how geology and magnitude values relate to building damage
- map building damage to reveal the configuration of a gault
- import data from an earthquake catalog and visualize it in 3D
- create a report that explains data being utilized in the GIS poject, answers important questions and summarizes the process of creating a map of the earthquake fault
This first map shows the Railroads at Risk. At a level X on the Modified Mercalli Scale, rails will bend.
PART III: Process Summary DetailsWrite down step-by-step instructions for the one process listed below. Do not copy the instructions verbatim from the lab exercise.
1) Part 1:
1. Started with the NewMadrid.mxd map
2. Compared Population Centers to hypothetical earthquake
3. Answer: Memphis, Tennessee
4. Selected by Location for the Urban Areas with the Source Later “New MadridMMI” and summarized to create an UrbanRisk table
5. Answer: 91
6. Calculated the population density using the Counties layer and adding the new field for “Population Density”.
7. Answer: 60,088,857
8. Created graph for population density
9. Assessed risks for roads and railroads comparing with the Modified Mercalli Scale
10. Created map for railroad risks, added all pertinent information and exported as “RailroadsAtRisk.jpg”
2) Part 2:
1. Started with the Northridge1.mxd map
2. Set the property symbols using the layers ‘property’, ‘symbology tab’
3. Selected by Attribute for the “unsafe” and “limited entry” properties.
4. From here on I could not get any further. I could not get the Kernel Density tool to work correctly, I followed the directions exactly several times, rebooted the computer and program, allowed it to use the defaults after trying the settings in the directions and it still would not set up the raster to describe the density of the damaged buildings.
3) Part 3:
1. Started with the Northridge2.mxd
2. I could not get past adding the text file. I could not locate the NorthridgeAfter.csv file in the files on the S:drive or the R:drive, I tried rebooting several times and looking in the files directly and in ArcCatalog and could not find any files even similar.
4) Part 4:
1. Started with Northridge3.mxd
2. I could not get very far in this part either. I tried to summarize the DaysAfter field in the earthquakes layer but when I tried step 3, to open the table and create the graph, the table was not actually formed, just a properties layer. I tried this several times, started from scratch, shutting the computer off, etc.
I was really looking forward to this lab, read all the fascinating background material and then became more and more frustrated as I tried to move through. If you could tell me what I did wrong (or what you think I might have done), I would greatly appreciate. Sadly my first assignment will have a very poor grade and I was not able to get through ¾ of the lab.
UPDATED
As I figure out the other maps, I will post them and their process summaries.
Part 4:
