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This animation shows a cumulative view of earthquake activity for the whole world from 1980 through 1995. Each dot on the image represents the number of earthquakes with magnitude greater than 4.2 that have occurred in a 0.35 by 0.35 degree area of the globe since January 1, 1980. A yellow dot represents 1 or 2 earthquakes, an orange dot represents about 10 earthquakes, and a red dot represents 50 to 200 earthquakes. The background image, if present, shows the topography of the ocean floor. As the animation proceeds, the earthquakes clearly accumulate around the topographic features that represent the boundaries of the Earths crustal plates. This animation is based on data from world-wide seismic networks and was obtained from the National Earthquake Center of the United States Geological Survey.
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Intended for grade levels:
Type of resource:
Subject:
Technical requirements:
Need MPEG-2 viewer, such as Visual Circuits HDfocus or Electrosonic HD Video Server
Cost / Copyright:
No cost
Please give credit to NASA GSFC Scientific Visualization Studio.
DLESE Catalog ID:
NASA-SVS-002893
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Related resources:
This resource has a thumbnail image at
'This animations shows earthquake activity over a 16-year period.'
Resource contact / Creator / Publisher:
Author:
Eric Sokolowsky NASA GSFC Scientific Visualization Studio
Author:
Jim Strong NASA GSFC Scientific Visualization Studio
Author:
Horace Mitchell NASA GSFC Scientific Visualization Studio
Principal Investigator:
Tom Watters Smithsonian/Air and Space |
