EarthQuake -- Current Release - UserDocs

Earthquake is an easy to use animated display of the the most recent earthquakes around the globe.

To operate properly, you must be online for the program to go out and obtain the latest Earthquake data from the USGS web site.

When opening Earthquake it immediately goes to the USGS site and gathers the last 20 significant Earthquake data from around the globe, and plots it onto the animating globe display.

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You can re-size the display by grabbing the lower left corner of the quake display window.

To change the display style, use the pull down menu and select Settings. A control panel pops up with a variety of controls.

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This control panel allows you to modify all the display settings for the Earthquake display to your liking.

If you want to get a quick overview of the different kinds of Settings styles, click on the checkbox for Random Enable. This will randomly change the Settings. You can stop it at one of the random configurations by quickly un-checking the Enable box.

The Settings panel provides the following controls:

QUAKES:

FLAGS show the Richter scale of the quake. If there are more than one quake in the same location the flags stack up on top of each other.

RINGS show the size of the quake in terms of approximate area it may have been felt.

SHELL is like rings but provides a 3 dimensional umbrella overlaying the region where the quake occured.

DEPTH shows the relative depth of the quake compared to other quakes. The farther the white line sticks outside of the globe at that quake location, the deeper the quake was inside the Earth.

ANGLE shows radial lines from the quake location to the center of the earth which is visible when the Globe control section Ocean checkbox is turned off.

AGE colors the Rings to show more recent quakes in a lighter shade of red and the most recent quake is a white Ring.

GLOBE:

OCEAN shows the ocean, and when unchecked makes the entire globe transparent except for the land masses. To make land masses semi-transparent see Land section below.

NIGHT colors the ocean to represent the current day of night zone on the Earth.

BACK, when OCEAN is turned off leaving a transparent view of the globe, and Back is turned on then the land masses and ANGLE lines (if checked) are visible for the back side of the globe. When back is turned off, only the front half of the transparent globe is shown.

LAND:

PHOTO shows the Earth land masses as a color photo revealing dry and green areas.

ALT shows the Earth land masses as a monochrome scale of relative land elevation.

LINE is a mesh line representation of the Earth, which for PCs that are slower than 300 Mhz, runs faster for smoother animation.

POINT shows the Earth land masses as points. This is useful if you want to see the transparent Globe, including transparency of land masses.

R, G and B slider controls let you change the color for the Photo or Alt land mass images.

OTHER:

ALERT Beep is currently disabled (see below)

UPDATE Quake Data is currently disabled. To refresh your display to see if new quakes have occurred, assuming you have left the display on for a while, just click on the REFRESH button in the upper right hand corner of the Settings panel.

SIZE slider lets you filter out smaller quakes so only quake of a certain size or larger are displayed.

RECENT slider lets to filter out quakes by recency of occurence. When the slider is up all the way all quakes are shown from the USGS data page.

TILT slider lets you change the relative tilt of the Earth to let you see more easily your geographic region of interest.

POS slider lets to rotate the globe to a certain view (assuming you have stopped the SPIN).

ZOOM slider allows you to zoom into a region on the globe for a close view, or zoom out to see the DEPTH line indicators more clearly.

SPIN slider allows you to change the rotation direction and speed of the globe hemispheric motion. Is set by default in the direction the Earth relatively spins, and at a slow setting. Lowering the slider will make the Earth spin faster in the same direction. The center grey box on this slider lets you at a click stop globe rotation. You can then use the POS slider to rotate to the portion of the globe you want to examine.

To SAVE your Settings go to the pul down Menu and select SAVE settings.

The pull down Menu provides links to open your browser to the USGS web site where the Earthquake data is being collected, or visit the Navagent.com web site.

Copyright © 2001-2008 Navagent, Inc.