Awareness of the consequences of hazards and actions to be taken before, during, or after hazards occur or are encountered.
100-Year flood - It's all about chance [ More info] Explains the concept, probabilistic nature, and inherent uncertainties of the 100-year flood to those who are unfamiliar with this concept.
A Magnitude 7.1 Earthquake in the Tacoma Fault Zone-A Plausible Scenario for the Southern Puget Sound Region, Washington [ More info] Scientific description of the likely effects of a significant earthquake on this densely populated area.
Advanced National Seismic System (seismic network) [ More info] 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.
Airborne Volcanic Ash - A Global Threat to Aviation [ More info] 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.
Alaska volcanoes guidebook for teachers [ More info] 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.
Bear Spray Safety Program [ More info] Explains for USGS employees and volunteers how best to defend against bear attacks when conducting field studies.
Boiling water at Hot Creek - The dangerous and dynamic thermal springs in California's Long Valley Caldera [ More info] Explains how these hot surface waters form, why their temperature changes often, and provides safety guidance for visiting this area.
California's restless giant: the Long Valley Caldera [ More info] Geological characteristics of this volcanic area, and volcanic activity, especially swarms of small earthquakes, which may precede eruptions and which are monitored by USGS.
Danger to aircraft from volcanic eruption clouds [ More info] Explanation of problems encountered by aircraft due to volcanic emissions.
Earthquake Hazards 101 [ More info] 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.
Alphabetical Index of Topics
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