O-HELP Oregon Hazard Explorer for Lifelines Program
Cascadia Lifeline Programs (CLiP)

* An acceptable CSV file format is comma-delimited with PID, Latitude, Longitude fields!

Elevation Model

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This is a hybrid elevation model which is compiled from 10 meter and 30 meter DEM. The source of 10 meter DEM is USGS and the 30 meter file is from NASA and it has a continuous raster format.

Geology

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This is a complete digitally compile general geology file with a vector polygon format.

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This is a compilation of quaternary faults within the last 1,600,000 years. The source of this file is from USGS (USGS, 2006) website in a vector polyline structure.

Site Class

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National earthquake hazard reduction program which depicts the site class based on the site soil properties and shear wave velocity in accordance with geotechnical data.

SLIDO Database - V3

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This is a statewide landslide information database for Oregon a product by department of Oregon geology and mineral industry (DOGAMI). In this website we are streaming this files from their server and present them on the interactive map. These are polygon feature datasets representing the landslide deposits and scarps along with scarp flanks.

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This is a statewide landslide information database for Oregon a product by department of Oregon geology and mineral industry (DOGAMI). In this website we are streaming this files from their server and present them on the interactive map.Historic landslides which previously occurred in Oregon are compiled in a feature dataset as these points.

Drillhole Database

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This feature class contains actual and "pseudo" drillholes used to create 3D geologic and geophysical models for the 2013 Portland NEHRP project. Drillhole points were digitized from maps or coordinates in drilling reports for geotechnical or other purposes (e.g. water wells, hydrocarbon exploration, etc). The drillhole feature class participates in two one-to-many relationship classes with tables of downhole geologic interpretations (PDX_NEHRP_interpretations) and shear-wave velocity measurements (PDX_NEHRP_Vs) using the key field "LOG_ID_concatenated". It is provided by department of Oregon geology and mineral industry (DOGAMI).

Bridges and Highways

Ground Motion

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Using developed regression relationships between peak ground acceleration and Modified Mercalli intensity from Wald et al (1999), this continuous raster map is generated to give the users information about how strong the earthquake will be felt.

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This map uses bedrock PGA values from the model developed by USGS for a specific secnario of Cascadia subduction earthquake ground shaking in the Pacific Northwest (http://earthquake.usgs.gov/eqcenter/shakemap/global/shake/Casc9.0_expanded_se/) combined with a new map of NEHRP site class for Oregon (Madin and Burns 2013) and uses the soil factor relationships of Boore and Atkinson (2008) to calculate site-dependent PGA. The methods and data used to make this map are described in detail in : Madin, I.P., and Burns, W.J., 2013. Published in a open file report (OSSPAC,2013) by Oregon Department of Geology and Mineral Industries (DOGAMI).

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This map uses bedrock one-second spectral amplification (SA01) values from the model developed by USGS for a specific secnario of Cascadia subduction earthquake ground shaking in the Pacific Northwest (http://earthquake.usgs.gov/eqcenter/shakemap/global/shake/Casc9.0_expanded_se/) combined with a new map of NEHRP site class for Oregon (Madin and Burns 2013) and uses the soil factor relationships of Boore and Atkinson (2008) to calculate site-dependent SA01. The SA01 values are then converted into PGV values. The methods and data used to make this map are described in detail in : Madin, I.P., and Burns, W.J., 2013. Published in a open file report (OSSPAC,2013) by Oregon Department of Geology and Mineral Industries (DOGAMI).

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This map uses bedrock 0.3 second spectral amplification (SA0p3) values from the model developed by USGS for a specific secnario of Cascadia subduction earthquake ground shaking in the Pacific Northwest (http://earthquake.usgs.gov/eqcenter/shakemap/global/shake/Casc9.0_expanded_se/) combined with a new map of NEHRP site class for Oregon (Madin and Burns 2013) and uses the soil factor relationships of Boore and Atkinson (2008) to calculate site-dependent SA0p3. The SA0p3 values are then converted into PGV values. The methods and data used to make this map are described in detail in : Madin, I.P., and Burns, W.J., 2013. Published in a open file report (OSSPAC,2013) by Oregon Department of Geology and Mineral Industries (DOGAMI).

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This map uses bedrock one-second spectral acceleration (SA01) values from the model developed by USGS for a specific secnario of Cascadia subduction earthquake ground shaking in the Pacific Northwest (http://earthquake.usgs.gov/eqcenter/shakemap/global/shake/Casc9.0_expanded_se/) combined with a new map of NEHRP site class for Oregon (Madin and Burns 2013) and uses the soil factor relationships of Boore and Atkinson (2008) to calculate site-dependent SA01., The methods and data used to make this map are described in detail in : Madin, I.P., and Burns, W.J., 2013. Published in a open file report (OSSPAC,2013) by Oregon Department of Geology and Mineral Industries (DOGAMI).

Landslide

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This map uses the methods of section 4.2.2.2 of the HAZUS-MH MR4 (FEMA, 2011 in references) to create a new coseismic landslide probability map for Oregon. The map uses a new landslide susceptibility map and a new map of site peak ground acceleration from Madin and Burns (2013, in references) as input to the model. The methods and data used to make this map are described in detail in : Madin, I.P., and Burns, W.J., 2013. Please note that all the probabilities in this dataset is scaled to 30 percentage. Published in a open file report (OSSPAC,2013) by Oregon Department of Geology and Mineral Industries (DOGAMI).

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This map uses the methods of section 4.2.2.2 of the HAZUS-MH MR4 (FEMA, 2011 in references) to create a new coseismic landslide permanent ground deformation (PGD) map for Oregon. The map uses a new landslide susceptibility map and a new map of site peak ground acceleration from Madin and Burns (2013, in references) as input to the model. The methods and data used to make this map are described in detail in : Madin, I.P., and Burns, W.J., 2013. Published in a open file report (OSSPAC,2013) by Oregon Department of Geology and Mineral Industries (DOGAMI).

Liquefaction

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This map uses the methods of section 4.2.2.1 of the HAZUS-MH MR4 (FEMA, 2011 in references) to create a new coseismic liquefaction probability map for Oregon. The map uses a new liquefaction susceptibility map and a new map of site peak ground acceleration from Madin and Burns (2013, in references) as input to the model. The methods and data used to make this map are described in detail in : Madin, I.P., and Burns, W.J., 2013. Please note that all the probabilities in this dataset are scaled to 30 percentage. Published in a open file report (OSSPAC,2013) by Oregon Department of Geology and Mineral Industries (DOGAMI).

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This map uses the methods of section 4.2.2.1 of the HAZUS-MH MR4 (FEMA, 2011 in references) to create a new coseismic liquefaction lateral spread permanent ground deformation (PGD) map for Oregon. The map uses a new liquefaction susceptibility map and a new map of site peak ground acceleration from Madin and Burns (2013, in references) as input to the model. The methods and data used to make this map are described in detail in: Madin, I.P., and Burns, W.J., 2013. Published in a open file report (OSSPAC,2013) by Oregon Department of Geology and Mineral Industries (DOGAMI).

Fault Rupture

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This is a parameter which depicts the land level change in a Cascadia subduction earthquake event.

Tsunami

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This dataset is shapefile representing the areas which will be inundated in a Large (L1) tsunami scenario for Oregon coast. Please see the relevant text report for more details.