Description: This dataset represents DART stations. As part of the U.S. National Tsunami Hazard Mitigation Program (NTHMP), the Deep Ocean Assessment and Reporting of Tsunamis (DART(R)) Project is an ongoing effort to maintain and improve the capability for the early detection and real-time reporting of tsunamis in the open ocean. DART(R) stations have been sited in regions with a history of generating destructive tsunamis to ensure early detection of tsunamis and to acquire data critical to real-time forecasts. DART(R) systems consist of an anchored seafloor bottom pressure recorder (BPR) and a companion moored surface buoy for real-time communications. An acoustic link transmits data from the BPR on the seafloor to the surface buoy. The data are then relayed via an Iridium satellite link to ground stations, which demodulate the signals for immediate dissemination to NOAA's Tsunami Warning Centers, NDBC, and PMEL. The National Geophysical Data Center (NGDC) serves as the archive center for this data and provides the historical data to users.Terms of UseAccess Constraint: None (Public Domain Information) Use Constraint: None (Public Use) Use Limitations: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Service Item Id: 9e491f403db349e6b417af77a56919bc
Copyright Text: Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce Metadata: http://www.ngdc.noaa.gov/docucomp/page?xml=NOAA/NESDIS/NGDC/Collection/iso/xml/G10068.xml&view=xml2text/xml-to-text-ISO&title=HTML%20NOAA/NESDIS/NGDC/Collection/iso/xml/G10068.xml Additional Information: http://www.ndbc.noaa.gov/dart/dart.shtml
Description: This map layer includes Holocene volcanoes, which are those thought to be active in the last 10,000 years, that are within an extended area of the northern hemisphere centered on the United States. The data are a subset of data available from the Global Volcanism Program, Smithsonian Institution at . This file is a replacement for the April 2004 map layer.Terms of UseNo special restrictions or limitations on using the item’s content have been provided.
Description: Included are earthquakes located in the United States as well as some that occurred in adjacent portions of Canada and Mexico. The main sources for the data are Seismicity of the United States, 1568-1989 and the Preliminary Determination of Epicenters for 1990 to August 2009. These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data.Terms of UseAccess Constraint: None (Public Domain Information) Use Constraint: None (Public Use) Use Limitations: No warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data.
Description: This dataset represents historical significant volcanic eruptions. A significant eruption is classified as one that meets at least one of the following criteria: caused fatalities, caused moderate damage (approximately $1 million or more), Volcanic Explosivity Index (VEI) of 6 or greater, generated a tsunami, or was associated with a significant earthquake. The database contains information on the latitude, longitude, elevation, type of volcano, last known eruption, VEI index, and socio-economic data such as the total number of casualties, injuries, houses destroyed, and houses damaged, and dollar damage estimates, if available. The Significant Volcanic Eruptions Database is a global listing of over 600 eruptions from 4360 BC to the present.Terms of UseAccess Constraint: None (Public Domain Information) Use Constraint: None (Public Use)
Service Item Id: 9e491f403db349e6b417af77a56919bc
Copyright Text: National Oceanic and Atmospheric Administration (NOAA), National Geophysical Data Center
Description: This dataset represents historical tsunamis and related information. The Global Historical Tsunami Database provides information on over 2,400 tsunamis from 2100 BC to the present in the Atlantic, Indian, and Pacific Oceans; and the Mediterranean and Caribbean Seas. This data includes information on the tsunami source such as the date, time, and location of the source event; cause and validity of the source, tsunami magnitude and intensity; maximum water height; the total number of fatalities, injuries, houses destroyed, and houses damaged; and total damage estimate (in U.S. dollars).Terms of UseAccess Constraint: None (Public Domain Information) Use Constraint: None (Public Use) Use Limitations: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Service Item Id: 9e491f403db349e6b417af77a56919bc
Copyright Text: National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Description: This dataset represents historical tsunamis and related information. The Global Historical Tsunami Database provides information on over 2,400 tsunamis from 2100 BC to the present in the Atlantic, Indian, and Pacific Oceans; and the Mediterranean and Caribbean Seas. This file contains information on the runups (the locations where tsunami waves were observed by eyewitnesses, reconnaissance surveys, tide gauges, and deep-ocean sensors) such as name, location, arrival time, maximum water height and inundation distance, and socio-economic data (deaths, injuries, damage) for the specific runup location.Terms of UseAccess Constraint: None (Public Domain Information) Use Constraint: None (Public Use) Use Limitations: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Service Item Id: 9e491f403db349e6b417af77a56919bc
Copyright Text: National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Description: This dataset shows selected streamflow gaging stations of the United States, Puerto Rico, and the U.S. Virgin Islands, in 2014. Gaging stations, or gages, measure the height (stage) and volume of flow at a point location on a water feature. Gages in this map layer were drawn from the National Hydrography Dataset Plus (NHDPlus) Version 1 Stream Gage Events, NHDPlus Version 2 National Data Gage Locations, and from the National Water Information System (NWIS) Web Interface. The gage positions were adjusted (snapped) using ArcGIS so that the gages were located directly on streams in the National Atlas map layer, 1:1,000,000-Scale Streams of the United States. The gages and streams also share attributes that link them together.
Description: This dataset represents tsunami tide gauges around the world. It provides raw 1-minute samples of water level data. The 1-minute raw water level dataset consists of over 100 NWLON Tsunami ready stations deployed along the Eastern and Western Coast of the U.S., Alaska, Pacific region, Caribbean region and U.S. states in the Gulf of Mexico.Terms of UseAccess Constraint: None (Public Domain Information) Use Constraint: None (Public Use) Use Limitations: Preliminary data have not been subjected to the National Ocean Service's quality control or quality assurance procedures and do not meet the criteria and standards of official National Ocean Service data. They are released for limited public use as preliminary data to be used only with appropriate caution.
Service Item Id: 9e491f403db349e6b417af77a56919bc
Copyright Text: National Oceanic and Atmospheric Administration (NOAA)
Description: This map layer shows tornado tracks in CONUS, Alaska, Hawaii and Puerto Rico, from 1950 to 2015. Statistical data were obtained from the National Weather Service, Storm Prediction Center (SPC).
Service Item Id: 9e491f403db349e6b417af77a56919bc
Copyright Text: NOAA; National Weather Service; National Centers for Environmental Prediction; Storm Prediction Center; SVRGIS These files are an attempt to represent the data that is submitted to the Storm Data publication by National Weather Service field offices. Careful review of the data is conducted at the National Climate Data Center and the Storm Prediction Center. More information available online: http://www.spc.noaa.gov/wcm/#data Website: http://www.spc.noaa.gov/gis/svrgis/ Attribute Domain Values: http://www.spc.noaa.gov/wcm/data/SPC_severe_database_description.pdf
Description: This Historical North Atlantic and Eastern North Pacific Tropical Cyclone Tracks file contains the 6-hourly (0000, 0600, 1200, 1800 UTC) center locations and intensities for all subtropical depressions and storms, extratropical storms, tropical lows, waves, disturbances, depressions and storms, and all hurricanes, from 1851 through 2008.Terms of UseNo special restrictions or limitations on using the item’s content have been provided.
Description: On the USGS website, maps of these geologic structures are linked to a database containing detailed descriptions and references. The database is intended to be the USGS's archive for historic and ancient earthquake sources used in current and future probabilistic seismic-hazard analyses. Our website presents for the first time a single source that summarizes important information on paleoseismic (ancient earthquake) parameters.These files were updated on November 3rd, 2010 with the most recent version of the Quaternary Faults features.Starting in the early 1970s, mainly in response to national concerns about the siting of nuclear reactors, scientists needed to locate active and Quaternary faults and document their characteristics. The descriptions contain information on geographic, geologic, and paleoseismic parameters that are deemed critical to making geologic-based assessments of seismic hazards. In addition, we provide narrative comments that clarify, justify, or expound upon these parameters. Many of the comments in the database provide justification for the paleoseismic parameters that were chosen to characterize the faults and folds.Terms of UseAccess Constraint: None (Public Domain Information) Use Constraint: None (Public Use)
Service Item Id: 9e491f403db349e6b417af77a56919bc
Copyright Text: U.S Geological Survey The project coordinator is Michael Machette (USGS). The database structure was created by Kathy Haller (USGS) and an early version of the web interface and search engines were created by Larry Mayer (formerly of the University of Miami at Oxford, Ohio). The GIS data was engineered and maintained by Richard Dart (USGS). The fault and fold traces were digitized mainly by Richard Dart, with help from Dean Hancock*. Static maps were made by Susan Rhea (USGS), Richard Dart, and Damon Sather*. The graphic web browser and ArcIMS module (still under development) were created by Susan Rhea, Damon Sather*, Karen Morgan*, and John Cox*. Much of the reference database and entry of data into the text database was done with the able assistance of Philly Morrow, Meredith Frey, and Kelli Clark (*, all former student interns or contractors to the USGS). Compilers and cooperators are listed on the web page (http://earthquake.usgs.gov/qfaults/contrib.html). Compilers are those who described faults or folds for the database. Cooperators are those who assisted with the development of digital fault data (traces), the database structure, or the geographical information system (GIS) interfaces.
Description: These data are a digital version of U.S. Geological Survey Professional Paper 1183, Landslide Overview Map of the Conterminous United States. The map and digital data delineate areas in the conterminous United States where large numbers of landslides have occurred and areas which are susceptible to landsliding. Because the data are highly generalized, owing to the small scale and the scarcity of precise landslide information for much of the country, they are unsuitable for local planning or actual site selection. This National Atlas data set was previously distributed as Digital Representation of the Landslide Overview Map of the Conterminous United States.
Service Item Id: 9e491f403db349e6b417af77a56919bc
Copyright Text: Damon Sather and Jonathan Godt performed the laborious task of integrating the thematic data with the National Atlas coastline data.
Description: This map layer shows seismic hazard in the United States. The data represent a model showing the probability that ground motion will reach a certain level. This map layer shows peak horizontal ground acceleration (the fastest measured change in speed, for a particle at ground level that is moving horizontally due to an earthquake) with a 10% probability of exceedance in 50 years. Values are given in %g, where g is acceleration due to gravity, or 9.8 meters/second^2. The lines of equal hazard, which are the lines between the polygons, were determined by interpolating from a grid of equally spaced points in latitude and longitude. Each point was weighted based on the seismic hazard at that location. The grid spacing is 0.1 degrees for Alaska and the conterminous United States, 0.02 degrees for Hawaii, and 0.05 for Puerto Rico and the U.S. Virgin Islands.
Description: This map layer shows seismic hazard in the United States. The data represent a model showing the probability that ground motion will reach a certain level. This map layer shows peak horizontal ground acceleration (the fastest measured change in speed, for a particle at ground level that is moving horizontally due to an earthquake) with a 2% probability of exceedance in 50 years. Values are given in %g, where g is acceleration due to gravity, or 9.8 meters/second^2. The lines of equal hazard, which are the lines between the polygons, were determined by interpolating from a grid of equally spaced points in latitude and longitude. Each point was weighted based on the seismic hazard at that location. The grid spacing is 0.1 degrees for Alaska and the conterminous United States, 0.02 degrees for Hawaii, and 0.05 for Puerto Rico and the U.S. Virgin Islands.