This site is the homepage of the United States Geological Survey's (USGS) Landslide Hazards Program (LHP). Materials available include an overview of the geologic hazard presented by landslides, a discussion of the objectives and operations of LHP, and links to program staff. The site also provides a link to the National Landslide Information Center (NLIC), which is responsible for distributing information ... Full description.

This collection of resources is intended to commemorate the centennial of the Great 1906 Earthquake that destroyed much of San Francisco. Items include maps, books and articles, photos and video, field trip ideas, interactive features, and simulations. Of particular interest is 'Putting Down Roots in Earthquake Country', a general interest publication that provides information about earthquake hazards ... Full description.

This collection of earthquake photos, published by the United States Geological Survey (USGS), contains links to photos for specific earthquakes, as well as links to other USGS image collections and non-USGS collections. Highlights include photos from the 1906 San Francisco earthquake, the 1989 Loma Prieta earthquake, and the 1994 earthquake in Northridge, California. There is also a link to the USGS ... Full description.

This map displays earthquake probabilities for several faults in the San Francisco Bay Area. The probability values are for the occurrence of one or more major (magnitude greater than or equal to 6.7) earthquakes in the San Francisco Bay Region during the next thirty years. Each fault on the map is color-coded to indicate the relative probability, and numerical values are displayed in boxes. The site ... Full description.

This downloadable compilation of articles was originally published as a series of weekly features in The San Francisco Chronicle. They present some of the new understanding gained and scientific advances made in the century since the Great San Francisco Earthquake of 1906. Topics include lessons learned from the 1906 earthquake, the uses of seismograms, recognizing active faults, investigating faults ... Full description.

This interactive map displays faults for five regions in Southern California. Clicking on a region links to an enlarged relief map of the area, with local faults highlighted in colors. Users can click on individual faults to access pages with more detailed information, such as type, length, nearest communities, and a written description. In all of the maps, the segment of the San Andreas fault that ... Full description.

This database summarizes geologic, geomorphic, and geographic information for about 2,000 Quaternary faults and folds in the United States. These structures are believed to be sources of magnitude 6 or greater earthquakes during the Quaternary Period (the past 1,600,000 years). Maps of these geologic structures are linked to detailed descriptions, including geologic setting, fault orientation, fault ... Full description.

This portal provides access to maps, aerial photographs, books, booklets, posters, CDs, digital data, and satellite imagery, many of which are useful for teaching about Lewis and Clark. These resources can be used in an inquiry-based setting for a variety of courses and projects at the elementary, secondary, and university levels. In addition, the USGS hosts Internet-based resources that can be used ... Full description.

This resource provides information about United States Geological Survey (USGS) resources and activities associated with National Parks. Users can choose from a selection of links that access items on park geology, virtual trips, research projects, and general topics such as plate tectonics, rocks and minerals, shorelines, glaciers, and many more. Links to geologic information for individual parks ... Full description.

This resource provides a brief overview of the upcoming International Polar Year (IPY) and United States Geological Survey (USGS) initiatives and resources that help support the observance. Topics include a history of IPY (this will be the third IPY) and the role of the USGS in polar research. The education section provides links to USGS resources on glaciation, the North and South Pole, Alaska, climate ... Full description.