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Generalized law for aftershocks

A generalized law for aftershock decay rates is provided through the combination of the Gutenberg-Richter frequency magnitude relation, Bath's law, and the modified Omori's law. Several large quakes ...

Hurricanes and Climate

This radio broadcast discusses the possible relationship between a warming Earth and stronger hurricanes, and how computer models are used to make predictions about future hurricanes. The clip is 1 ...

Natural Hazards: Hurricanes

This portal provides information on the hazards presented to the Gulf and Atlantic coasts of the United States by hurricanes. A fact sheet summarizes some of the destructive effects and describes ...

3-D Simulations of Magnitude 7.1 Earthquakes Along the Hayward Fault

This set of simulations presents the results of simulated ground motions in the San Francisco Bay Area due to earthquakes of Magnitude 7.1 along the Hayward fault. Three rupture scenarios are ...

Background on the 1900 Galveston Hurricane

A report on the 1900 hurricane that devastated Galveston, Texas is available on the AGU Web site. It is a chapter from the book, Hurricane!: Coping with Disaster (AGU, 2003), covering the event ...

Oceanic carbon may help track hurricanes

Satellite measurements of dissolved organic carbon in the wake of oceanic hurricanes and typhoons provide a new way to estimate the atmosphere-ocean interaction during the major storms. Satellite ...

Earthquakes Online
This article examines the use of technology to augment science education at the middle and high school levels. Earthquake data was downloaded from the internet on a daily basis, plotted and tracked ...

Using Internet technology to deliver an inquiry-based Earth systems course designed for middle school teachers
Abstract: The past decade has seen the exponential growth of the Internet as a tool to deliver on-line instruction at all educational levels. Many first generation on-line courses employed strategies ...

Introducing volcanic hazards with free digital data
This article contains visualizations of volcanic landscapes at Mount Shasta, California. The visualizations were created with USGS DEM's and DLG's downloaded from the internet. Although the article ...

Crustal structure and tectonics from the Los Angeles basin to the Mojave Desert, southern California
A seismic refraction and low-fold reflection survey, known as the Los Angeles Region Seismic Experiment (LARSE), was conducted along a transect extending from Seal Beach, California, to the Mojave ...

Misconception of energy release in earthquakes
Analyzes how textbooks define and describe an earthquake focus or hypocenter. Provides examples from textbooks that reflect an absence of precision in words and diagrams that can foster ...

Nuclear Power's Global Fallout
Science magazine has created a map that provides a snapshot of the number of nuclear reactors in operation and under construction worldwide, locations of power plants in relation to seismic hazard ...

Scent of a myth: tectonics, geochemistry and geomythology at Delphi (Greece)
Extensive geochemical investigation (of water, travertine, soil and diffuse gas), coupled with geo-structural analysis, provides new insights into local fault-fluid interaction and allows us to ...

Rainfall-induced lahars in the Belham Valley, Montserrat, West Indies
Rain falling on loose volcanic debris over the Soufriere Hills Volcano, Montserrat generates hazardous floods in the Belham Valley. These rainfall-induced lahars vary greatly in discharge and ...

An Earthquake Lab for Physical Geology
This article from the Journal of Geological Education describes an activity in which students locate the epicenter of several earthquakes, plot the trends of the two faults involved, and determine ...

Making the Mississippi Over Again: The Development of River Control in Mississippi

This website is part of the Mississippi History Now web newspaper. The feature story discusses engineering of river control in the Mississippi. Topics discussed in the story include the need for ...

Seven Days

A SCEC-VDO movie showing two approx. magnitude 5 earthquakes that occurred within seven days in Southern California. The second earthquake is on or near the San Andreas fault and led to concern of a ...




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