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Cumulative Earthquake Activity from 1980 through 1995 (WMS)
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 Earth's 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.

This animations shows earthquake activity over a 16-year period.    This animations shows earthquake activity over a 16-year period.
Duration: 16.0 seconds
Available formats:
  1024x512 (29.97 fps) MPEG-2   11 MB
  160x80       PNG           27 KB
  320x160     JPEG         14 KB
  80x40         PNG           7 KB
  320x240 (30 fps) MPEG-1   6 MB
  640x480 (30 fps) MPEG-1   6 MB
  1024x512 (29.97 fps) MPEG-1   11 MB
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This product is available through our Web Map Service.   Click here to learn more.

This animation shows earthquake activity over a 16-year period over a map of tectonic plate boundaries and ocean bathymetry.    This animation shows earthquake activity over a 16-year period over a map of tectonic plate boundaries and ocean bathymetry.
Duration: 0.9 seconds
Available formats:
  1024x512 (29.97 fps) MPEG-1   11 MB
  1024x512 (29.97 fps) MPEG-2   12 MB
  1024x512   PNG           812 KB
  320x160     PNG           98 KB
  160x80       PNG           26 KB
  80x40         PNG           6 KB
How to play our movies



Legend for the earthquake animation 		   Legend for the earthquake animation

Available formats:
  320 x 90           PNG   1 KB



Legend for plate boundaries. 		   Legend for plate boundaries.

Available formats:
  320 x 60           PNG 11 KB

Animation Number:2893
Animators:Eric Sokolowsky (Lead)
 Jim Strong
 Horace Mitchell
Studio:NASA
Completed:2004-02-10
Scientist:Tom Watters (Smithsonian/Air and Space)
Data set:Earthquakes
Data Collected:1980/01/01 - 1995/12/31
Series:WMS
Keywords:
SVS >> Earthquake
DLESE >> Geology
DLESE >> Natural hazards
GCMD >> EARTH SCIENCE >> Human Dimensions >> Natural Hazards >> Geological Hazards
GCMD >> EARTH SCIENCE >> Solid Earth >> Seismology >> Earthquake Occurrences
More Information on this topic available at:
http://neic.usgs.gov
View Animation in Google Earth Google Earth KML file is available here.
DEPC Metadata is available here.
FGDC Metadata is available here.
 
 
Please give credit for this item to
NASA/Goddard Space Flight Center
Scientific Visualization Studio


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