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Risk Analysis of Kilauea Volcano, Hawaii
Tyler LancasterRandy Winowiecki
Background information
● Shield volcano in the Southeast corner on the island ● Known to be one of the most active volcanoes in the
world● Lava has low viscosity (travels farther)
Research questions
● What are the damages that could be done to the surrounding area?
● Which areas will be affected the most from potential lava flow?
Hazard Analysis
Volcanic Hazard Lava Flow
Hazard Analysis Population
Economic Vulnerability Infrastructure
Agriculture
Methods
● Acquired ALL data from hawaii.gov○ Digital Elevation Model
○ Landsat
○ Population by census data
○ City locations
○ Land use land cover
● Ran the DEM through the Flow Direction tool● Ran the Flow Direction through the Basin tool● Raster to polygon with the Basin layer● Add all values in symbology tab
Drainage basins for Hawaii
Methods, cont.● Made a polygon of the vent of the Kilauea Volcano● Clipped 8 nearest drainage basins
Methods, cont.
● Ranked 8 basins by distance to vent (highest risk being the closest)
● Clipped population and roads to the 8 basins● Ran Statistics tool on the area and length on them● Clipped land cover land use to the 8 basins● Ran Summarize tool to find the sum of the land cover
types in the 8 basins● Ranked each of the vulnerabilities and calculated the
final hazard analysis based on the ranks given
Volcanic Hazards
● Ranking of the lava flow is based on each drainage basins distance from the vent
Economic vulnerability
Population - 35,486 people
Roads - 629 miles
Hospital - 1
Economic Vulnerability, cont.Land Cover Types in Drainage Basins:
● Agricultural Vegetation - 17,908 acres● Developed Land - 2,471 acres● Forest/Woodland - 122,563 acres● Introduced Vegetation - 37,772 acres● Mixed Wetlands - 2 acres● Nonvascular/Sparse Rock Vegetation - 51,130
acres● Open Water - 14 acres● Shrubland/Grassland - 33,839 acres
Ranking
Results: Hazard Analysis
Drainage basin #1
● Population = 8,715 people● Developed land = 1,000 acres● Roads = 200 miles● Agriculture = 8,530 acres
Sources
● http://planning.hawaii.gov/gis/download-gis-data/
Hawaii planning website
● http://landcover.usgs.gov/landcoverdata.php
United States Geographical Survey
● http://hvo.wr.usgs.gov/volcanowatch/archive/2002/02_03_21.html
USGS Article on Kilauea Volcano activity