Poster commemorating the 30th anniversary of the 1980 eruptions of Mount St. Helens, a volcano in southwestern Washington state. Facts provided in plain text as well.
Crop areas in west central Kenya are affected by decline in rainfall over several decades; the effects may be exacerbated by overall warming in the region
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.
Explains the problem, describes procedures used to cope with it, ways of monitoring and detecting hazardous conditions, and warning systems currently available to help mitigate the dangers.
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.
The lessons and activities in this guidebook are meant to supplement and enhance existing science content already being taught to Alaskan students in grade levels 6-12.
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.
Pavement sealant contains chemicals that are known carcinogens, which get into nearby homes, lakes, and the air. Sealants based on coal tar release more dangerous chemicals than those based on asphalt.
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.
Storms bring rains strong enough to cause rock-falls and landslides that are hazardous to people. Includes examples in the eastern US with information about the weather events that precipitated the debris flows.
The Vegetation Drought Response Index is a drought monitoring and mapping tool integrating satellite observations of vegetation and climate with land cover, soil characteristics, and other environmental factors.
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.
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.
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.
GPS measurements made since 1996 seem to show this earthquake-prone area slowing down. Is it time to relax? Scientists who studied these data in detail say no, and this fact sheet explains why.
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.
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.
Shows where earthquakes occur here, the type of damage that has occurred, and the information that USGS provides to help people anticipate and understand this hazard.
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.
Critical pre- and post-disaster images and datasets available online for immediate viewing and downloading. Includes the Hazards Data Distribution System, an interactive map interface.
Reviews how coal fires occur, how they can be detected by airborne and remote surveys, and, most importantly, the impact coal-fire emissions may have on the environment and human health, especially mercury, carbon dioxide, carbon monoxide, and methane.
Of 129 reported incidents, 94 are confirmed ash encounters, 79 of which entailed airframe or engine damage; 20 are low-severity events involving suspected ash or gas clouds; for 15 the data are insufficient to assess severity.
In September of 2009, flooding in parts of Georgia reached levels expected every 500 years. Specific measurements we made and other facts about these disasters described here should help people prepare for floods here and elsewhere.
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.
Provides detailed technical information on earthquake hazards in the form of frequently asked questions. Designed for the technical audience, including building and safety planners.
After the powerful earthquake of April 18, 1906, staff of the U.S. Geological Survey stationed in Sacramento and Berkeley brought help to the residents of devastated San Francisco, documented the effects of the quake, and investigated its causes.
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.
An organizational unit within USGS that studies earthquakes, landslides, and geomagnetism. Contact information and descriptions of current research projects.
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.
Links to background information on glaciers, glacier hazards, ice sheets and glaciations, glacial lakes, specific glaciers, terminology, bibliographies, and related useful links.
Research and development efforts to improve our ability to provide scientific information needed by local beach managers faced with questions about environmental quality and possible beach closure or resource usage.
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.
Using land cover, vegetation, vegetation health, and other characteristics derived from remote-sensing imagery, we develop geospatial models depicting the susceptibility of this area to wildfires.
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.
We put seismic monitoring instruments into 20 VA hospital buildings, connected with computers that analyze their data to determine rapidly the structural health of the buildings in the event of earthquakes.
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.
Research program designed to improve understanding of the causes of ground failure so that the hazards associated with landslides can be mitigated or avoided.
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.
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.
Guidelines for correct tsunami response and community preparedness from local emergency managers, first-responders, and leading experts on tsunami hazards and warnings.
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.
We combine long-term records from aerial photographs, detailed mapping using survey-grade GPS, and ground-based lidar with meteorological monitoring. Sand dune migration rates are currently about 35 meters per year.
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.
One of our Nation's most dangerous volcanoes, Mount Rainier has been the source of countless eruptions and volcanic mudflows, and many people live in the areas that will be affected by it.
The National Assessment of Coastal Change Hazards is a multi-year undertaking to identify and quantify the vulnerability of U.S. shorelines to coastal change hazards such as the effects of severe storms, sea-level rise, and shoreline erosion and retreat.
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.
Describes the role USGS plays in reducing losses from natural disasters, itemizing specific information we develop and maintain to help mitigate or avoid these problems.
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.
Shows where current natural hazard events are occurring within the US or worldwide, with information about the geographic extent of the hazard, the US agency engaged to work on it, and how long the hazard is expected be active.
Research and monitoring to provide the Nation with a clear understanding of natural hazards and their potential threats to society, and assists with developing smart, cost-effective strategies for achieving preparedness and resilience.
Map interfaces and data in the area offshore Louisiana, Mississippi, and Alabama which was affected most by hurricane Katrina and, more recently, the oil spill.
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.
An automated system for rapidly estimating the shaking distribution, number of people and settlements exposed to severe shaking, and range of possible fatalities and economic losses. A color-coded alert suggests levels of appropriate response.
Description of research underway in the Pacific Northwest including geologic mapping and urban hazards studies with links to geologic maps, publications, and data.
Overview of the Pacific Northwest Urban Corridor Geologic Mapping Program concerned with geology and urban hazards with links to online geologic maps, current research, publications, and contacts.
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.
The so-called "100-year" flood is really more like the 4 ½ year flood. This can help emergency managers enhance public awareness of how often flooding truly occurs in a region. It also could help convince those people in harm's way that preparedness is m
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 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.
Everyone in your family, children and adults, can learn how to prepare for an earthquake. Read this book, then take advantage of the American Red Cross Earthquake Preparedness training courses offered in your community.
Everyone in your family, children and adults, can learn how to prepare for an earthquake. Read this book, then take advantage of the American Red Cross Earthquake Preparedness training courses offered in your community.
If you live near one of the seismic zones in the central United States, this handbook explains why you should be concerned with earthquakes, what you can expect during a quake, and what you need to do beforehand to be safe and reduce property damage.
If you live or work in the San Francisco Bay region, this handbook explains why you should be concerned with earthquakes, what you can expect during and after a quake, and what you need to do beforehand to be safe and reduce property damage.
With high property damage, loss of life and fire damage were relatively low. Why? The legal system encourages builders to follow code, the electrical grid was shut down early, and emergency response management was very effective.
Video: Learn what USGS scientists have discovered about landslide dynamics and which slopes are most susceptible to sliding. Hear the devastating stories of Bay Area residents affected by landslides and learn to recognize the danger signs.
A wide variety of web interfaces providing scientific information in geographic form for exploration and analysis, developed by this organization that focuses on geospatial analysis.
Post-earthquake map derived from 1:24,000-scale base maps incorporating high- and medium-resolution remotely sensed imagery following the 7.0 magnitude earthquake near the capital city of Port au Prince, Haiti, on January 12, 2010
Post-earthquake map derived from 1:24,000-scale base maps incorporating high- and medium-resolution remotely sensed imagery following the 7.0 magnitude earthquake near the capital city of Port au Prince, Haiti, on January 12, 2010
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.
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.
Basic information for homeowners, communities, emergency managers, and decisionmakers. Includes sections on landslide types, evaluation tools, and mitigation techniques.
History of the Hawaiian Volcano Observatory (HVO), established in 1912, including an overview of Hawaiian volcanic processes and USGS monitoring techniques.
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.
Guidelines for correct tsunami response and community preparedness from local emergency managers, first-responders, and leading experts on tsunami hazards and warnings.
Guidelines for correct tsunami response and community preparedness from local emergency managers, first-responders, and leading experts on tsunami hazards and warnings.
Guidelines for correct tsunami response and community preparedness from local emergency managers, first-responders, and leading experts on tsunami hazards and warnings.
Guidelines for correct tsunami response and community preparedness from local emergency managers, first-responders, and leading experts on tsunami hazards and warnings.
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.
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.
How we support an international agreement designed to facilitate the use of remote sensing data for assisting when major disasters occur anywhere on earth.
Access and listing of popular USGS publications listed by themes: resources, hazards, environment, information management, and states, and also by scientific discipline.
Imagery, sampling information, and other data intended for use in assessing and remediating environmental problems related to the oil spill in the Gulf of Mexico in 2010
Outlines tactical problems that make it difficult for beach managers to use scientific information to make beach closure and advisory decisions. Explains methodologies we are using to address those problems and better prepare local decision makers.
The primary goal of U.S. Geological Survey (USGS) Natural Hazards Response is to ensure that the disaster response community has access to timely, accurate, and relevant geospatial products, imagery, and services during and after an emergency event.
We use moderate resolution satellite data to assess live fuel condition for estimating fire danger. Using 23 years of vegetation condition measurements, we are able to determine the relative greenness of wildland vegetation susceptible to burning.
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.
Overview of volcano hazards in California 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.
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.