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USGS Geologic Hazards Science Center GIS Server Documentation

http://earthquake.usgs.gov/arcgis/rest/services

The USGS Geologic Hazards Science Center (GHSC) in Golden, CO maintains GIS services pertaining to various geologic hazard disciplines including earthquakes and landslides. This document provides an overview of the structure of this server and also outlines the GIS data it contains.

There are 5 folders for varying geologic hazards in the home area on the GIS server. http://earthquake.usgs.gov/arcgis/rest/services They are eq (earthquakes), gm (geomagnetism), gp (geoprocessing), haz (earthquake hazards), and ls (landslides). Each directory contains services with data that pertain to each discipline. Services for each discipline are outlined below.

Earthquakes (eq folder)

There are currently GIS services for 3 projects within the earthquake team. These projects are Slab Models for Subduction Zones, Tweet Earthquake Dispatch (TED), and ShakeMap.

GIS Services for the Slab Models for Subduction Zones Project
For more information about the project itself please visit: http://earthquake.usgs.gov/data/slab/

Slab Depth Contours: http://earthquake.usgs.gov/arcgis/rest/services/eq/slab_depth/MapServer
This service contains linear contours showing subduction zone depth values around the world

Slab Dip Contours: http://earthquake.usgs.gov/arcgis/rest/services/eq/slab_dip/MapServer
This service contains linear contours showing subduction zone dip values around the world

Slab Strike Contours: http://earthquake.usgs.gov/arcgis/rest/services/eq/slab_strike/MapServer
This service contains linear contours showing subduction zone strike values around the world

Slab Grid Points: http://earthquake.usgs.gov/arcgis/rest/services/eq/slab_grid/MapServer
This service contains a grid of points showing subduction zone depth, dip, and strike values around the world

GIS Services for the VS30 Project
For more information about the project itself please reference the following report: https://pubs.usgs.gov/of/2007/1357/pdf/OF07-1357_508.pdf
A web map displaying these data can be found at: http://usgs.maps.arcgis.com/apps/webappviewer/index.html?id=8ac19bc334f747e486550f32837578e1

VS30 Raster: http://earthquake.usgs.gov/arcgis/rest/services/eq/vs30/MapServer
This service contains raster values for locations around the world.

VS30 Points: http://earthquake.usgs.gov/arcgis/rest/services/eq/vs30points/MapServer
This service contains gridded VS30 point values for locations around the world.


GIS Services for the Tweet Earthquake Dispatch (TED) Project
For more information about the project itself please visit: http://earthquake.usgs.gov/earthquakes/ted/

TED Napa Tweets: http://earthquake.usgs.gov/arcgis/rest/services/eq/ted_NapaTweets/MapServer
This service contains tweets corresponding to the August 24, 2014 M6.0 Napa earthquake. The service is a sample of the data harvested by the TED project.

TED Napa Heatmap: http://earthquake.usgs.gov/arcgis/rest/services/eq/ted_NapaHeatmap/MapServer
This service contains a tweet density heatmap corresponding to the August 24, 2014 M6.0 Napa earthquake.


-------Real-time GIS Service Feeds--------

Web Map displaying the feeds below: http://usgs.maps.arcgis.com/home/webmap/viewer.html?webmap=5555eabe9d65418d8e0b5677b3fe59b5

30 Day Significant Event Feed GIS Service: http://earthquake.usgs.gov/arcgis/rest/services/eq/event_30DaySignificant/MapServer
This service contains event specific data for significant earthquakes over the past 30 days. It is updated every 30 minutes. NOTE: This service runs on 4 servers that operate independently of each other. Some inconsistencies in data may occasionally be found over short periods of time due to different processing intervals, server maintenance, and other variables. This service runs on top of a GeoJSON feed that should be considered the authoritative source for event based data. The feed can be found at: https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/significant_month.geojson

GIS Service for the ShakeMap Project
For more information about the project itself please visit: http://earthquake.usgs.gov/data/shakemap/

30 Day Significant Earthquake ShakeMap Feed: http://earthquake.usgs.gov/arcgis/rest/services/eq/sm_ShakeMap30DaySignificant/MapServer
This service contains ShakeMap station, mi, pga, pgv, psa03, psa10, and psa30 data. It is updated every 30 minutes with significant earthquake events from around the world. NOTE: This service runs on 4 servers that operate independently of each other. Some inconsistencies in data may occasionally be found over short periods of time due to different processing intervals, server maintenance, and other variables.

GIS Service for the DYFI? Project
For more information about the project itself please visit: http://earthquake.usgs.gov/data/dyfi/

30 Day Significant Earthquake Did You Feel It? Feed: http://earthquake.usgs.gov/arcgis/rest/services/eq/dyfi_30DaySignificant/MapServer
This service contains aggregated DYFI? responses for events within the last 30 days. The responses are geographically aggregated into 1km and 10km boxes. It is updated hourly. NOTE: This service runs on 4 servers that operate independently of each other. Some inconsistencies in data may occasionally be found over short periods of time due to different processing intervals, server maintenance, and other variables.

Note: Documentation and Python code outlining the process of deploying these near real-time services on a local GIS server can be found in the "NearRealTimeLiveFeedCode" folder of this Github repository.

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GIS Service for the USGS Earthquake Catalog

Earthquake Catalog Feed: http://earthquake.usgs.gov/arcgis/rest/services/eq/catalog_2015/MapServer
This service contains earthquake catalog data from 1900 - 2015. It is updated annually.

Earthquake Catalog Feed (Feature Service): http://earthquake.usgs.gov/arcgis/rest/services/eq/catalog_2015feature/MapServer
This service contains earthquake catalog data from 1900 - 2015. It is updated annually.

GIS Service for 2012 Landscan Population Data

2012 LandScan Population Data Feed: http://earthquake.usgs.gov/arcgis/rest/services/eq/pager_landscan2012bin/MapServer
This service contains 2012 LandScan Population Data used in PAGER Project. The data is binned into 5 classes for display purposes. Complete data information can be found at: http://web.ornl.gov/sci/landscan/


Geoprocessing (gp folder)




Earthquake Hazards (haz folder)

Hazards GIS Services
For more information about hazards projects, please visit: http://earthquake.usgs.gov/hazards/

Alaska Hazard Maps

Probabilistic seismic-hazard maps were prepared for Alaska portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities of exceedance of 10 percent in 50 years and 2 percent in 50 years. All of the maps were prepared by combining the hazard derived from spatially smoothed historic seismicity with the hazard from fault-specific sources. The acceleration values contoured are the random horizontal component. The reference site condition is firm rock, defined as having an average shear-wave velocity of 760 m/sec in the top 30 meters corresponding to the boundary between NEHRP (National Earthquake Hazards Reduction program) site classes B and C. For more information online visit: http://pubs.er.usgs.gov/publication/i2679, http://pubs.er.usgs.gov/publication/ofr9936, and http://earthquake.usgs.gov/hazards/

Alaska Hazard Map - 10% in 50 year 1 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/AK1hz050_1999/MapServer

Alaska Hazard Map - 2% in 50 year 1 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/AK1hz250_1999/MapServer

Alaska Hazard Map - 10% in 50 year 5 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/AK5hz050_1999/MapServer

Alaska Hazard Map - 2% in 50 year 5 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/AK5hz250_1999/MapServer

Alaska Hazard Map - 10% in 50 year PGA: http://earthquake.usgs.gov/arcgis/rest/services/haz/AKpga050_1999/MapServer

Alaska Hazard Map - 2% in 50 year PGA: http://earthquake.usgs.gov/arcgis/rest/services/haz/AKpga250_1999/MapServer

Alaska Hazard Map - Gridded Hazard Points: http://earthquake.usgs.gov/arcgis/rest/services/haz/AKpts_1999/MapServer
Gridded data for the 1999 Alaska Hazard maps.

Hawaii Hazard Maps

Probabilistic seismic-hazard maps were prepared for Hawaii portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities of exceedance of 10 percent in 50 years and 2 percent in 50 years. All of the maps were prepared by combining the hazard derived from spatially smoothed historic seismicity with the hazard from fault-specific sources. The acceleration values contoured are the random horizontal component. The reference site condition is firm rock, defined as having an average shear-wave velocity of 760 m/sec in the top 30 meters corresponding to the boundary between NEHRP (National Earthquake Hazards Reduction program) site classes B and C. For more information online visit: http://pubs.er.usgs.gov/publication/i2724, http://bssa.geoscienceworld.org/content/91/3/479, and http://earthquake.usgs.gov/hazards/

Hawaii Hazard Map - 10% in 50 year 1 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/HI1hz050_1998/MapServer

Hawaii Hazard Map - 2% in 50 year 1 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/HI1hz250_1998/MapServer

Hawaii Hazard Map - 10% in 50 year 5 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/HI5hz050_1998/MapServer

Hawaii Hazard Map - 2% in 50 year 5 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/HI5hz250_1998/MapServer

Hawaii Hazard Map - 10% in 50 year PGA: http://earthquake.usgs.gov/arcgis/rest/services/haz/HIpga050_1998/MapServer

Hawaii Hazard Map - 2% in 50 year PGA: http://earthquake.usgs.gov/arcgis/rest/services/haz/HIpga250_1998/MapServer

Hawaii Hazard Map - Gridded Hazard Points: http://earthquake.usgs.gov/arcgis/rest/services/haz/HIpts_1998/MapServer
Gridded data for the 1998 Hawaii Hazard maps.

United States Hazard Maps

Probabilistic seismic-hazard maps were prepared for the conterminous United States portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities of exceedance of 10 percent in 50 years and 2 percent in 50 years. All of the maps were prepared by combining the hazard derived from spatially smoothed historic seismicity with the hazard from fault-specific sources. The acceleration values contoured are the random horizontal component. The reference site condition is firm rock, defined as having an average shear-wave velocity of 760 m/sec in the top 30 meters corresponding to the boundary between NEHRP (National Earthquake Hazards Reduction program) site classes B and C. For more information online visit: http://pubs.usgs.gov/sim/3195/, http://pubs.usgs.gov/of/2008/1128/, and http://earthquake.usgs.gov/hazards/

2008 United States Hazard Map - 10% in 50 year 1 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/US1hz050_2008/MapServer

2008 United States Hazard Map - 2% in 50 year 1 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/US1hz250_2008/MapServer

2008 United States Hazard Map - 10% in 50 year 5 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/US5hz050_2008/MapServer

2008 United States Hazard Map - 2% in 50 year 5 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/US5hz250_2008/MapServer

2008 United States Hazard Map - 10% in 50 year PGA: http://earthquake.usgs.gov/arcgis/rest/services/haz/USpga050_2008/MapServer

2008 United States Hazard Map - 2% in 50 year PGA: http://earthquake.usgs.gov/arcgis/rest/services/haz/USpga250_2008/MapServer

2008 United States Hazard Map - Gridded Hazard Points: http://earthquake.usgs.gov/arcgis/rest/services/haz/USpts_2008/MapServer
Gridded data for the 2008 United States Hazard maps.

2014 United States Hazard Map - 10% in 50 year 1 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/US1hz050_2014/MapServer

2014 United States Hazard Map - 2% in 50 year 1 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/US1hz250_2014/MapServer

2014 United States Hazard Map - 10% in 50 year 5 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/US5hz050_2014/MapServer

2014 United States Hazard Map - 2% in 50 year 5 hz: http://earthquake.usgs.gov/arcgis/rest/services/haz/US5hz250_2014/MapServer

2014 United States Hazard Map - 10% in 50 year PGA: http://earthquake.usgs.gov/arcgis/rest/services/haz/USpga050_2014/MapServer

2014 United States Hazard Map - 2% in 50 year PGA: http://earthquake.usgs.gov/arcgis/rest/services/haz/USpga250_2014/MapServer

United States Overview Map: http://earthquake.usgs.gov/arcgis/rest/services/haz/USoverview/MapServer
Overview map of the United States.

Faults Services
Quaternary Faults: http://earthquake.usgs.gov/arcgis/rest/services/haz/qfaults/MapServer
This service contains quaternary fault traces and fault areas for the United States.

Site Investigation Location/Paleosites: http://earthquake.usgs.gov/arcgis/rest/services/haz/site_investigations/MapServer
This service contains some paleosite locations near faults in the United States.

2002 Hazard Faults: http://earthquake.usgs.gov/arcgis/rest/services/haz/hazfaults2002/MapServer
This service contains traces for fault locations that were used to caclulate the 2002 National Seismic Hazards Mapping project data.

2008 Hazard Faults: http://earthquake.usgs.gov/arcgis/rest/services/haz/hazfaults2008/MapServer
This service contains traces for fault locations that were used to caclulate the 2008 National Seismic Hazards Mapping project data.

2014 Hazard Faults: http://earthquake.usgs.gov/arcgis/rest/services/haz/hazfaults2014/MapServer
This service contains traces for fault locations that were used to caclulate the 2014 National Seismic Hazards Mapping project data.


Landslides (ls folder)

There are currently GIS services for 1 project within the landslides team. This project is for Post-Fire Debris-Flow Hazards.

GIS Services for the Post-Fire Debris-Flow Hazards Project
For more information about the project itself please visit: http://landslides.usgs.gov/hazards/postfire_debrisflow/

2016 Post-Fire Debris Flow - Assessment Data: http://earthquake.usgs.gov/arcgis/rest/services/ls/pwfdf_2016/MapServer
This service contains post-fire debris flow data for fires during the year of 2016.

2017 Post-Fire Debris Flow - Assessment Data: http://earthquake.usgs.gov/arcgis/rest/services/ls/pwfdf_2017/MapServer
This service contains post-fire debris flow data for fires during the year of 2017.

2018 Post-Fire Debris Flow - Assessment Data: http://earthquake.usgs.gov/arcgis/rest/services/ls/pwfdf_2018/MapServer
This service contains post-fire debris flow data for fires during the year of 2018.

Post-Fire Debris Flow - Fire Locations: http://earthquake.usgs.gov/arcgis/rest/services/ls/pwfdf_locations/MapServer
This service contains post-fire debris flow fire locations for all fire assessments.


Geomagnetism (gm folder)

There are currently no GIS services for any Geomagnetism projects within the team. More information on the USGS Geomagnetism program can be found at: http://geomag.usgs.gov/


Leveraging GIS Services

There are numerous ways to interact with and consume GIS data found in these services. Please visit Esri's ArcGIS Server REST API documentation at: http://resources.arcgis.com/en/help/rest/apiref/ for more information.