Cumulative Earthquake Activity from 1980 through 1995 (WMS)

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Author:

Eric Sokolowsky, Horace Mitchell, Jim Strong, Tom Watters

Subject:

Science and Technology

Institution Name:

NASA

Collection:

NASA GSFC Scientific Visualization Studio

Grade Level:

Secondary, Post-secondary

Abstract:

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.

Course Type:

Learning Module

Languages:

English

Material Type:

Other

Media Format:

Graphics/Photos, Text/HTML, Video

Technical Requirements:

Need MPEG-2 viewer, such as Visual Circuits HDfocus or Electrosonic HD Video Server

Conditions of Use:

Public Domain
Please give credit to NASA GSFC Scientific Visualization Studio