Free printed copies can be ordered from igs or download the pdf file here. Department of geology and mineral industries landslide hazards in. They are unsuitable for local planning or actual site selection. Realtime monitoring of landslides and landslide instrumentation. Look up landslide susceptibility information for your neighborhood with dogami interactive maps hazvu and slido. For more information, watch a video about usgs landslide science, and visit the usgs landslide hazards program website. The searchable map includes contributions from many local, state, and federal agencies and. This usgs video explains some of the differences between various types of landslides and describes some landslide science activities of usgs. Landslide awareness surface water staff compiled the following information and internet references in an effort to increase landslide awareness for skagit county residents. Trash click this to remove all markers and products. Click to go to the collection page for usgs drg maps of all 50 states. Usgs drg maps for the state of california are available here. This app brings to life more than 178,000 maps dating from 1882 to 2006. The map displays both the incidence of landslides and susceptibility of the land surface to landslides.
This study used gis as a tool to map storminduced landslides from spot5 images. The map categorizes the state using color codes provided by the usgs landslide susceptibility map and the nys gs landslide incidence map. To read more about maps used for landslide exploration and research, click here to download the usgs circular 25 the landslide handbooka guide to understanding landslides appendix b introduction to landslide evaluation tools mapping, remote sensing, and monitoring of landslides. The landslide susceptibility map was created including two 2. Map and map database of susceptibility to slope failure by sliding. Geological survey usgs and numerous state geological surveys around the nation prioritize the mapping of landslideprone areas. Landslides in alameda county, california, a digital. Understanding landslide deposit maps oregon department of. Usgs scientists produce maps of areas susceptible to landslides and identify what sort of rainfall conditions will lead to such events. Understanding landslide risk is crucial in making decisions around safety, infrastructure, and land use. It can involve large or small areas and volumes of material. New usgs map can help puerto rico deal with risk of.
Staff with the north carolina geological survey in swannanoa are heading up. Bartholomew provided valuable guidance and recommendations during the air photo, airborne reconnaissance, and fieldmapping portions of. Consider subscribing to our blog, washington state geology news, to receive. Susceptibility of terrain between the old landslide deposits is read directly from a slope histogram for each geologicmap. To use the map locator to find map products use the search bar or drop a pin by double clicking on the map view. Colorado abandoned mine land aml information map may also be accessed through the cdphe at the mine impacted streams taskforce. The primary regions of landslide occurrence and potential are the coastal and mountainous areas of california, oregon. Geological survey usgs national landslide information center nlic, in golden, colorado, usa, is available as a resource to answer questions, help with interpretations, or otherwise support users of this book. Landslide prone areas landslide prone areas may 2, 2008 this map is property of allegheny county and should be used for reference purposes only. Technological tools for evaluation of landslidesmapping, remote. A homeowners guide to landslides for oregon and washington pdf. Information on the extent and distribution of landslide deposits is necessary for sound landuse planning.
About latest earthquakes version info clicking the list icon in the top right corner will load the earthquake list. Three map plates show areas of landslide susceptibility and outlines of landslides mapped within the city limits of colorado springs. Geological survey today unveiled a new webbased interactive map that marks an important step toward mapping areas that could be at higher risk for. This map, a preliminary compilation of such information. The technology of spotting landslides by use of aerial photography and new laser based terrain mapping called lidar is helping dogami develop much more accurate and detailed maps of areas with existing landslides and we are now able to create landslide susceptibility maps, that is, maps that that show where we think different types of. For information on what to do if you live in a recentlyburned area. Older landslides and shallow landslide do not show up well on lidar maps and hence may be under represented on the map and in the models. The models do not predict downstream impacts, potential debrisflow runout paths, and the areal extent of debrisflow or flood inundation. It made use of several data layers such as landslide inventory, geology, rock strength and slope of varying scales and formats. These hazards include earth shaking strong motion, fault ruptures, landslides, liquefaction, and tsunamis as well as mineral hazards such as radon, mercury, and asbestos. This handbook is intended to be a resource for people affected by landslides to. In 1998, following the deadly landslides that occurred during the storms of 1996, a task force formed by the state legislature to look at the problem of landslides in oregon, presented its results. The standard also is available in postscript format. Susceptibility to deepseated landslides in california.
In 2014, the us geological survey usgs and esri collaborated to bring the everincreasing collection of us historical topographic maps to everyone through the usgs historical topographic map explorer. Clicking the options icon in the top right corner lets you change which earthquakes are displayed, and many other map and list options. Several kinds of maps are used to depict danger from landslides. The maps provide coverage that aids ongoing city planning and addresses general public information, disclosure, and education. This first map shows the global distribution of nonseismic landslides for the period 20062008. The data should be displayed and analyzed at scales appropriate for 1. Using geologic maps to reduce landslide risk american. All geologic information is inferred between data points using standard geologic mapping principles. The landslide hazards program at the wgs is producing landslide inventories for densely populated areas. Bartholomew provided valuable guidance and recommendations during the air photo, airborne reconnaissance, and fieldmapping portions of the project. Pdf documents opened from your browser may not display or print as intended. Kara jacobacci, washington geological survey division of geology and. A digital elevation model dem of 10m x 10m resolution was used to extract geomorphic landslide causative factors. Allegheny county pennsylvania department of transportation pennsylvania turnpike commission national hydrography dataset usgs landslide susceptibility map of allegheny county, prepared circa 1972.
They are available for sale as paper copies and as free downloadable pdf files through the isgs web site. Compilation of landslide location maps and index for. Dogami landslide hazards oregon department of geology and. The 2009 nile landslide blocked the naches river and covered state route 410. Landslide susceptibility mapping by using a geographic information. Data on slope, faults, geology, forest loss, and road networks were combined using a heuristic fuzzy approach.
Landslides and related features, ohio, west virginia. California geological survey the california geological survey cgs is dedicated to providing scientific products and services about the states geology, seismology, and mineral resources that affect the health, safety, and business interests of the people of california. The primary objective of the national landslide hazards program is to reduce longterm losses from landslide hazards by improving our understanding of the causes of ground failure and suggesting mitigation strategies. Liquefaction hazard maps usgs earthquake hazard program. Prior failure from a landslide inventory, rock or soil strength, and steepness of slope are three of the more.
An ideal landslide hazard map shows not only the chances that a landslide may form at a particular place, but also the chance that it may travel downslope a given distance. Geological survey over the internet or on magnetic tape. These hazards include earth shaking strong motion, fault ruptures, landslides, liquefaction, and tsunamis as well as mineral hazards such as radon. The new maps add landslide data documented in 240 geologic maps and internal ugs landslide investigations completed between 1989 and mid2007. Some organizations use the term landslide potential map for maps of this kind. Select the landslide hazard box in the map contents layers. The california geological survey, a division within the california department of conservation, provides data and analysis of californias seismic and geologic hazards. Landslides landslide is a general term for the downslope mass movement of soil, rock, or a combination of materials on an unstable slope. The open file series includes primarily county maps at scales less than 1. Emergency assessment of postfire debrisflow hazards.
This complex map is the gis half of our new webbased groundwater atlas. Steep topography, bedrock geology, and unconsolidated soils make many parts of northern kentucky susceptible to landslides agnello, 2009. Landslides in pennsylvania pdf usgs landslide handbook pdf landslides in the greater pittsburgh region pdf usgs landslideinventory maps of pennsylvania zip questions. These maps might be as simple as a map that uses the locations of old landslides to indicate. Landslide maps and reports web application find and download landslide maps and reports in pdf. Geological survey today unveiled a new webbased interactive map that marks an important step toward mapping areas that.
Macon county is the first in a series of north carolina counties that are being studied in detail for potential and known landslide hazards. Landslide hazard information causes, pictures, definition. Hazard maps used in conjunction with landuse maps are a valu able planning tool. If the property is partially within the landslide hazard area, development may occur on that portion of the property outside of the landslide hazard area. When analysing the shapefile and comparing it with the pdf, it was noticed that some points were missing and that the points were located in the middle of each landslide. Geological survey map of puerto rico shows the relative risks of landslides due to the kind of intense rainfall brought on by hurricanes. Landslideinventory maps, the most basic landslide maps, portray the location of prior failure. Dogami openfile report o1602, landslide susceptibility. California landslide inventory web application information warehouse. Landslide inventory maps, the most basic landslide maps, portray the location of prior failure. Because one clue to the location of future landsliding is the distribution of past movement, maps that show existing landslides are helpful in predicting the hazard. Click here to use the california landslide interactive map source. Mapping of hazardous rockfall areas has been completed in a few areas. Maps and data california department of conservation.
The direct cost of landslide damage includes the repair of roads and property and the loss of life. Geologic hazards the california geological survey, a division within the california department of conservation, provides data and analysis of californias seismic and geologic hazards. Landslide hazard area snohomish county, wa official. Landslide impact and mitigation in the typical year, landslides in the united states cause billions of dollars in property damage and kill dozens of people. It identifies 20% of the island as at high risk, 9% at very high risk, and 1% at extremely high risk of landslides under. Introduction to landslide evaluation toolsmapping, remote sensing, and monitoring of landslides pdf 12.
Emergency assessment of postfire debrisflow hazards landslide. A heuristic approach to global landslide susceptibility mapping. Development is not allowed in a landslide hazard area unless there is no other location and the conditions of scc 30. Downloadable macon county landslide hazard maps in pdf format macon county is the first in a series of north carolina counties that are being studied in detail for potential and known landslide hazards. Remote sensing and other tools that show features of landslide activity. This landslide inventory was obtained as a shapefiles of points and as a pdf document of the scanned original maps. Liquefaction hazard maps san francisco bay area these maps are designed to give the general public as well as landuse planners, utilities and lifeline owners, and emergency response officials, new and better tools to assess their risk from earthquake damage. Oregon department of geology and mineral industries 800 ne oregon st. Landslide incidence and susceptibility polygons were digitized from the original stablebase manuscripts at 1.
The standard is provided here in pdf format, which is best for viewing and plotting. Usgs landslide hazards program, responsible for monitoring, reporting, and researching landslides and landslide hazards jump to navigation the maps below depict the likelihood of debrisflow generation and estimates of flow magnitude in locations where debris flows initiate. This pdf contains a list of significant deepseated and shallow landslides in washington since 1984. Geological survey, 1997, digital compilation of landslide overview map of the conterminous united states. A webbased interactive map with a consistent set of landslide data. It is being provided to meet the need for timely best science. Landslide susceptibility map s describe the relative likelihood of future landsliding based solely on the intrinsic properties of a locale or site. Landslide in washington state science features usgs. The landslides are delineated with polygon and line features as well as given 17 unique attributes, including a movement type, a movement azimuth, and a confidence rating how. The new maps add landslide data documented in 240 geologic maps and internal ugs landslide investigations completed between 1989. On010 colorado groundwater atlas includes the full extent of groundwater data currently available.
Interactive map of landslides in california american. Commonly, there is a threestage approach to landslide hazard mapping. The accompanying booklet includes a digital elevation map, generalized geology map, cross sections. Gis data and web map portal colorado geological survey. The updated information is available in gis format as well as pdf format and depicts 46 topographic landslide maps at a scale of 1. The type of landslide reports vary by area and include both historical and recent landslide information. Use the enter address field at the top of the map to enter your location. Briefly, the map was constructed by evaluating geologic units shown on the geologic map of the united states king and beikman, 1974 and classifying them as having high, medium, or low landslide incidence based on number of known landslides, and as having the high. The models do not predict downstream impacts, potential debrisflow runout paths, and the areal extent of debrisflow or flood inundation for information on what to do if you live in a recentlyburned area where debris flows are possible, and there is a. Staff with the north carolina geological survey in swannanoa are heading up this multiyear effort. More information about viewing, downloading, and printing report files can be found here. Updated landslide maps of utah utah geological survey. Faith daniels perf ormed and organized the literature search for published landslide locations and information.
Funding for the usgs to implement a national strategy for reducing losses. The landslide handbook a guide to understanding landslides. Clicking the map icon in the top right corner will load the map. Landslide susceptibility map of the pittsburgh west. The information is provided on the condition that neither the usgs nor the.
I have recently worked up two new maps of the distribution of fatal landslides, based upon the fatal landslide database that i maintain. Macon county landslide hazard maps are complete and available from this web page as adobe pdf documents. Landslides are one of the most costly natural hazards in the united states, threatening every state. The california geological surveys interactive landslide map displays landslide locations and links to detailed landslide maps and reports for select californian regions. Inventory mapping and characterization of landslides using lidar.
Indirect costs, such as loss of property value and. The maps below depict the likelihood of debrisflow generation and estimates of flow magnitude in locations where debris flows initiate. Maps of global fatal landslides the landslide blog agu. New maps, protocol reveal landslides using laserbased imaging. About the usgs historical topographic map collection and explorer. Landslide is a general term for the downslope mass movement of soil, rock, or a combination. Preliminary photointerpretation maps of landslide and other surficial deposits of 56 7 12minute quadrangles in the southeastern san francisco bay region, alameda, contra costa, and santa clara counties, california. A limited number of paper copies will soon be available. Landslide hazard maps indicate the possibility of landslides occurring throughout a given area.
Download the latest version of adobe reader, free of charge. The island of hawaii landslide susceptibility landslide susceptibility very high high moderate v hospitals roads this information is preliminary or provisional and is subject to revision. Products pane your search results and products will appear by clicking this icon. Geologic mapping 1 geologic mapping geologic mapping is a highly interpretive, scienti. Fgdc digital cartographic standard for geologic map symbolization. Washington is one of the most landslideprone states in the country, with hundreds to thousands of events each year. Susceptibility to deepseated landslides in california 2011 wildland fire perimeters and deep landslide susceptibility web application. Landslide geologists use lidar derivatives to map landslides. If you have questions about landslides in pennsylvania contact the dcnr bureau of geological survey at 7177022017. Geological survey fact sheet 20043072 july 2004 landslide types and processes printed on recycled paper l andslides in the united states occur in all 50 states. A geologic map is key to understanding landslide risk. The susceptibility to deep seated landslides grid map covers the entire state of california and originally published in may of 2011 as cgs map sheet 58. Dogami landslide hazards oregon department of geology. Landslide inventory map of the southeast quarter of the lake oswego.
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