How often does Google Maps update satellite images?

Answer

Google updates Google Maps and Google Earth images whenever new imagery becomes available, and there is no set schedule. Most images are one to three years old.

For people who are interested in knowing when maps of certain locations are updated, Google offers an alerting service at followyourworld.appspot.com. Alerts are emailed whenever the satellite or aerial imagery in the user's area of interest is updated. To use this service, users need a Google account.

Google also welcomes input from users. They can report a problem on a map and, with the Google Map Maker, even add or change map information.

Reference:
Q&A Related to "How often does Google Maps update satellite..."
Google Earth is updated usually once or twice a month and Google Maps is sometimes few weeks out of sync with those updates but more or less on the same update
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they update it every year or so
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Officially, there is no schedule for updating Street View. Their priority is getting cities and countryside in locations which are not yet covered in this tool. But updates have occurred
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In areas that are searched often, and are undergoing major changes, they are more likely to update the photos. If you lived in an established residential area that is not viewed very
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1 Additional Answer
Ask.com Answer for: how often does google maps update satellite images
How Often Does Google Maps Update Satellite Images?
Google Maps is a trusted source for location information including directions, traffic and satellite imagery. The relatively high resolution images have even been used to spur new archeological research efforts, according the National Geographic.... More »
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