LIQUEFACTION POTENTIAL - MM81 --
Liquefaction Potential of Surficial Materials in Indiana, 2011 (1:500,000)
Shows shows highly generalized categories (low, moderate, and high) of liquefaction potential, based on soil classes of the
National Earthquake Hazards Reduction Program (NEHRP). This data set provides a digital coverage of the predicted response
of surficial geologic materials in Indiana to liquefaction induced by earthquakes. It is intended to be used by Indiana
Department of Homeland Security, emergency planners, and responders on the state and local level as a general reference guide
to identify potential areas of evaluated risks of liquefaction.
Low liquefaction potential includes NEHRP Soil Class B (consisting of rock: sandstone, limestone, shale).
Moderate liquefaction potential includes NEHRP Soil Class C (hard or stiff soil, or gravel) and part of NEHRP Soil
Class D (stiff soil, stiff clay, and some gravel).
High liquefaction potential includes parts of NEHRP Soil Class D (stiff soil, stiff clay, and some gravel), and all of
NEHRP Soil Class E (soft soil and soft to medium clay) and F (lake and river deposits of sand and mud).
The following is excerpted from Indiana Geological Survey Miscellaneous Map 81: "Liquefaction is a common ground-failure hazard
associated with earthquakes. It is defined as the sudden and temporary loss of strength of a water-saturated sediment. This could
result in the structural failure of buildings, bridges, and other structures."
FGDC metadata: EARTHQUAKE_LIQUEFACTION_POTENTIAL_MM81_IN
Download ESRI Shapefile: EARTHQUAKE_LIQUEFACTION_POTENTIAL_MM81_IN.ZIP