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Yellowstone Volcano Observatory

This source is a clearinghouse of scientific information about the Yellowstone volcanic system. Topics include recent seismic and thermal activity, volcanic history, references and maps, a photo ...

Current Activity at the Yellowstone Volcanic System

This website provides a monthly summary of current geologic events that relate to the Yellowstone volcanic system. The summary includes information about earthquakes, hydrothermal activity, and other ...

Seismic Map for Yellowstone

A map of known hazardous faults and fault zones in Yellowstone National Park plotted with real-time earthquake data. The earthquake epicenters can be clicked for more information.

NOAA Indian Ocean Tsunami Animation

This Quicktime visualization from NOAA concentrates on the wave propagation as it occurred in the Indian Ocean as a result of the Sumatra earthquake. This animation can be paused, rewound and ...

FEMA HAZUS

This is a risk assessment software program that contains models for estimating potential losses from floods, hurricane winds and earthquakes. Loss estimates produced by HAZUS are based on current ...

Hurricane Visualizations

This site from NOAA's Geophysical Fluid Dynamics Laboratory presents descriptions, 3-D images and animations of some noteworthy hurricanes in recent history, including Andrew, Opal and Fran. The ...

GFDL VisGallery

This site contains visualizations and animations based on the results of the Geophysical Fluid Dynamics Laboratory's research. They are offered as examples of various visualization techniques and ...

Improving hurricane prediction

The authors report that a high resolution general circulation model now being used at NASA's Goddard Space Flight Center and Ames Research Center doubles the resolution of most global weather models ...

Corrections of the Indian gauge data used for early assessments of the great 26 December 2004 earthquake

This resource is an abstract. This study re-evaluates slip velocity over the region of the December 26, 2004 Sumatra-Andaman earthquake. Using new data, the authors found that a mixed mode of slip ...

Tsunami warnings using ocean circulation models

This resource is an abstract. This study uses numerical models that take advantage of digital seismometry and satellite radar altimetry to shed light on tsunami source and formation mechanisms. The ...

Listening to the 2004 Indian Ocean tsunami quake

This resource is an abstract. This study tracks the movement of the rupture that caused the December 26, 2004 Indian Ocean tsunami by comparing recordings of sound waves from five sensors located ...

A tsunami warning system for the Indian Ocean

This resource is an abstract. Using tidal gauge data from the time of the 2004 Indian Ocean tsunami, the authors were able to reconstruct the height and speed of the waves and the time it took them ...

How volcanic eruptions cause tsunamis

This study investigates the effect of pyroclastic flows on tsunami generation. The authors analyzed several possible mechanisms that occur when the particle rich flows encounter water and conclude ...

Predicting catastrophic earthquakes

This resource provides an abstract. This article discusses a method based on the magnitude-frequency distribution of previous earthquakes in a region. It is used to examine the probability of a small ...

Reassessing the earthquake threat to San Francisco

This resource provides an abstract. New research suggests that authorities may need to reassess the threat posed by the Hayward fault, the fault responsible for San Francisco's highly destructive ...

Cracks from a Japanese earthquake heal in two years

This resource provides an abstract. Seventeen years of shockwave recordings were used to investigate crack healing after the large March 1997 Tokai region earthquake in Japan. Recordings taken at two ...

Molten rock makes big earthquakes bigger

This resource provides an abstract. A modified friction welding device was used to spin one small cylinder of granite against another at high speed and pressure in order to simulate two plates ...

Improving earthquake warning in Costa Rica

This resource provides an abstract. This study examines seismic waves from a segment of the Middle America subduction zone below Central America that are capable of producing strong earthquakes. ...

Stopping stick-slip seismic events?

This resource provides an abstract. This study models underground frictional resistance in stick-slip seismic events in order to determine the amount of energy needed to weaken a fault plane enough ...

Using GPS for earthquake imaging

This resource provides an abstract. The authors used a dense array of Global Positioning System (GPS) stations to model how the Earth slipped during the 2003 8.0-magnitude Tokachi-Oki earthquake near ...

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