News and related information about the importance of seven major types of natural hazards in the United States: earthquakes, floods, wildfires, hurricanes, landslides, volcanoes, and tsunamis.
Information on earthquake activity, earthquake science, and earthquake hazard reduction with links to news reports, products and services, educational resources for teachers, glossary, and current U.S. earthquake activity map.
Homepage for USGS Volcano Hazards Program with feature stories, and links to worldwide volcano updates, volcanic hazards, reducing volcanic risk, USGS international programs, and resources such as educator's page, videos, and online reports.
Fact sheet describing the value of The National Map designed as a network of digital databases that will provide a consistent national geographic data framework in responding to natural hazards and human-induced disasters.
Provides links to explanatory materials for the layperson, including information on concepts behind earthquake maps, the use of probability, what the maps mean, how they are made, and answers to frequently asked questions.
Provides detailed technical information on earthquake hazards in the form of frequently asked questions. Desisigned for the technical audience, including building and safety planners.
Home page for Northern California Earthquake Hazards Program with links to earthquake news, real-time earthquake and shaking maps, earthquake probabilities, latest earthquake information, hazards and preparedness, research and special features.
National seismic hazards maps, global seismic hazards map, predictive intensity maps, shaking hazards maps and probabilities for California, and a variety of fact sheets on earthquakes.
An organizational unit within USGS that studies earthquakes, landslides, and geomagnetism. Contact information and descriptions of current research projects.
Links to background information on glaciers, glacier hazards, ice sheets and glaciations, glacial lakes, specific glaciers, terminology, bibliographies, and related useful links.
Research program designed to improve understanding of the causes of ground failure so that the hazards associated with landslides can be mitigated or avoided.
Overview of fire-related hazards for the fire management community and fire effects on the landscape with links to capabilities and programs, directory, and link to other agencies involved in wildfire research and management.
An introduction to the volcano hazards in the Long Valley area based on the past geologic history of the Long Valley Caldera and the Mono-Inyo Craters volcanic chain.
Describes the 6 main types of hazardous activities and processes associated with volcanoes, including tephra, lava flows, pyroclastic flows, lahars (volcanic mudflows), landslides, and volcanic gas.
Overview of the Long Valley Caldera with links to monitoring data including earthquakes and deformations, long-term outlook, volcano hazards in the area, USGS response plan, image gallery, monitoring and topical studies, publications and references.
Lists of largest earthquakes in the world and in the United States, earthquake facts and statistics, deaths from earthquakes, earthquakes by magnitude, and significant earthquakes.
Fact sheet on hazards from earthquakes and tsunamis in Puerto Rico and the U.S. Virgin Islands to be downloaded as a PDF file or viewed as an Adobe Acrobat Reader file.
Links to various earthquake projects, facts, science fair ideas, earthquake science, becoming an earthquake scientist, image glossary, earthquake facts, and puzzles and games for children.
Satellite images of geographic areas of interest, cities, deserts, glaciers, geologic features, disaster areas, water bodies, and wildlife linked with articles, maps, and other images such as AVHRR, photographs, and special project images.
Real-time earthquake maps of the conterminous U.S., Alaska, Hawaii, and Puerto Rico displaying magnitude and location of earthquake activity in the past hour, past day, and past week.
Annotated list of resources about the great earthquake of 1906, which caused significant devastation in and around San Francisco, California, compiled for the 100th anniversary of the disaster.
Techniques of computer-based representations of areal geology to construct three-dimensional geologic maps that retain all the information of traditional geologic maps while providing a more detailed picture of the subsurface.
Homepage for tsunami research with links to information and images on basics, tsunamis in the Pacific Northwest, the 1998 Papua New Guinea tsunami, research on specific tsunamis, and animations in various formats.
Brief description of project for the Federal Emergency Management Agency to prepare and modify Flood Insurance Rate Maps based on flood frequency analysis, ground surveys, and flood profiles in Virginia.
Main page for accessing links for information and data on the San Francisco Bay estuary and its watershed with links to highlights, water, biology, wetlands, hazards, digital maps, geologic mapping, winds, bathymetry and overview of the Bay.
A program of studies with instruments to provide accurate and timely data and information on seismic events, including their effects on buildings and structures, employing modern monitoring methods and technologies.
Homepage for Alaska Volcano Observatory (AVO) with offices in Anchorage and Fairbanks monitors and studies Alaska's hazardous volcanoes. Links to featured news, updates, publications and products, and a volcano atlas for Alaska.
Links to volcanism, volcanic history, volcanic rocks, and general geology by state, by region, national parks and national monuments and a brief introduction to volcanism around the U.S. entitled: Windows into the past.
An explanation of toxic carbon dioxide emissions at Mammoth Mountain in Long Valley caldera, and a description of magmatic helium discharge at the Mammoth Mountain fumarole with photos, maps, and links to other studies.
Portal to information provided by the Cascades Volcano Observatory in Vancouver, WA with links to reports and activity in the Cascade Range and other volcanoes and multiple links to general information on volcanology, reports, research, and maps.
Educational volcano site providing answers to frequently asked volcano questions with links to other general information on volcanoes and to information on specific volcanoes including the Cascade Range volcanoes.
GIS data set from the USGS National Landslides Hazards Program showing major landslide events in the United States and Puerto Rico with metadata. Map layer can be downloaded in shapefile format or SDTS format.
Describes strategy of volcano warnings and the real-time detection of a sudden eruption or lahar and immediate notification of the activity to the public and local, state, and federal emergency-management officials.
Study of wildland fire history and fire ecology such as plants in the Sierra Nevada forests, California shrublands, the Mojave, and Sonoran deserts to develop management techniques that will reduce hazards.
Geographic Analysis and Monitoring Program (GAM) conducts studies about land surface change, environmental and human health, fire and urban ecology, and natural hazards to help decision-makers in land-use planning and land management.
Homepage about the Geology Discipline with links to what's new, publications, real-time hazards information, partnerships, fellowship program, and major science programs.
Description of the Geospatial Multi-Agency Coordination (GeoMAC) project, online maps of current wildland fire locations using Netscape Communicator or Microsoft Internet Explorer, and user guide on how to use mapping application.
Hawaiian Volcano Observatory's latest news with links to information on Kilauea, Mauna Loa, and other volcanoes, earthquakes, volcanic hazards, photo archive, and general information about the center.
Description of three types of severe coastal storm impacts: hurricane impacts on the southeast U.S., extra-tropical storm impacts on the U.S. west coast during El-Nino winters, and 'northeaster' impacts on the U.S. east coast.
Description of research program for immediate and long-term management of grizzly bears (Ursus arctos horribilis) inhabiting the Greater Yellowstone Ecosystem. Includes links to reports in PDF format and cooperating organizations.
Current Kilauea eruption activity, updated daily with recent photos, maps, and deformation information and links to video for broadband users, photo glossary, and image archive.
An introductory primer giving basic scientific facts about landslides--the types of landslides, how they are initiated, and how they can begin to be managed as a hazard.
A wide variety of explanatory and educational resources about landslides and their relationship with earthquakes and storms, and preparedness. Includes glossary and photos.
Guidebook with photos, maps, and diagrams explaining how forest fires have affected the likelihood of mass wasting, with discussions of steps taken to minimize future impacts.
Describes the monitoring effort and provides real-time data of the current restless activity of the caldera, including earthquakes, ground deformation, and release of volcanic gas and plus link to volcano monitoring techniques.
National Landslide Information Center links to general information, teacher/student information, recent landslide events, state and local information, current projects, fire-related landslides, and images and publications on landslides.
Portal to general information on the National Atlas of the United States with access for producing specialized maps and links to thematic maps including interactive maps, multimedia maps, map layers data warehouse, wall maps, and printable maps.
Overview of studies of fragile and active landscape of the American Southwest deserts, including projects on geologic mapping, surface processes, remote sensing research, ecological processes, and earthquake hazard applications.
Selection of photographic images of the Long Valley area that illustrate the consequences of the past geologic history of the Sierra Nevada, Long Valley Caldera, the Mono-Inyo Craters volcanic chain, glaciation, and faulting.
Describes activities of USGS scientists to increase public awareness of volcano hazards with links to publication and videos for public information on understanding and preparing for volcanic hazards.
Homepage for a paleoseismic field study of the geologic record of prehistoric earthquakes in the Puget Lowland region to evaluate seismic hazards with links to an atlas and reports on historic earthquakes in the Washington and Oregon area.
Selected books, maps, videos, and other materials produced by the USGS Volcano Hazards Program. Many products highlighted here are intended for general audiences.
An introduction to three related USGS digital libraries: the general-purpose Marine Realms Information Bank (MRIB); the regionally focused Monterey Bay Science (MBS) Digital Library; and the topically focused Coastal Change Hazards (CCH) Digital Library.
Basic information for homeowners, communities, emergency managers, and decisionmakers. Includes sections on landslide types, evaluation tools, and mitigation techniques.
Access and listing of popular USGS publications listed by themes: resources, hazards, environment, information management, and states, and also by scientific discipline.
Describes volcano monitoring at Yellowstone National Park including an update of recent volcanic activity, real-time data, and link to volcano monitoring techniques information.
This booklet presents a generalized summary of the nature, workings, publications, and hazards of the common types of volcanoes around the world, along with a brief introduction to the techniques of volcano monitoring and research.
Thematic descriptions of research to meet the varied needs of the fire management community and to understand the role of fire in the landscape including fire management support, studies of postfire effects, and fire history and ecology.
Homepage of the Yellowstone Volcano Observatory with links to information about the observatory at Yellowstone National Park, volcanic history, photo gallery, monitoring data, publications and products, and Frequently Asked Questions (FAQs).