Malaysia Airlines crash

I think the circle is based on the 7th hour ping indicating that the plane was someplace on the circle during the 7th hour. Since they don't know where the plane was on the circle, the direction of the airplane, and the amount of fuel remaining, the search area would need to account for all of those unknowns. If they could get a second ping from another satellite during the 7th hour, the search area would be significantly narrowed.

Originally Posted by Yorkieabroad 

I would have thought "yes" to any of those, though I'd have thought less likely to go undetected if it came down on land than sea....especially with satellite imaging. Saw a headline in a paper at breakfast that someone is putting satellite imaging online and asking for "crowd source" help to analyze it