Satellite/aerial imagery
The subject of imagery on Google Earth convinced me at long last to register for PPRune, as we're finally in a subject I have some knowledge to contribute.
Contrary to popular belief by many, the imagery on Google Earth, Bing, etc. are not realtime imagery. Further, much of the imagery, particularly over urban areas, is not satellite imagery but rather aerial imagery. Google itself does not acquire much ortho imagery itself; it's primarily provided by the large satellite and aerial imagery providers.
Much of the areas outside urban centers that is acquired by satellite imagery is captured at relatively high resolution (40 cm/pixel). However, extremely remote areas may have extremely low resolution, on the order of 30 meters per pixel. Because of this, it's not surprising at all for small, remote islands to appear blurry.
While Digital Globe or their subsidiaries may be retasking satellites to capture high resolution imagery of the suspected crash areas, don't expect that imagery to appear on Google Earth in the next couple of days. More likely DG will post it on their website first, and it will eventually be integrated into GE.