How often is Google Earth updated?

Answer

The number of Google earth is updated depends on a number of factors. Generally every region is updated at least once in every five years but there are some areas that are updated more frequently because they have greater commercial importance to Google Areas that are searched for more often are updated more times. Some areas such as military bases are rarely updated.
Q&A Related to "How often is Google Earth updated?"
Everytime at startup Google Earth checks if new version is available. If it finds new version, it downloads. You can turn this off or take it on Manual mode.
http://www.ask.com/web-answers/Computers/Other/how...
On average it is updated every 1-3 years but this can vary depending on the area being updated. Larger cities such as New, York, London and Dallas would be updated more often then
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Google Earth is updated every one to three months. ChaCha on!
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The Web-based mapping software Google Maps is free for noncommercial use and can be used to look up satellite photos, plan driving directions or find residential and commercial businesses
http://www.ehow.com/about_6170272_google-maps-upda...
2 Additional Answers
Google Earth's maps are updated about every five minutes. That does not mean each image is updated each five minutes, just that every five minutes some aspect of the map is updated. Quite an astonishing program!
When google earth first launched people assumed it updates very often, well come to find out Google earth actually does not update that often, it all depends on a few factors. Example:location and security are two important concepts to it updating.
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