Kheshgi, Pakistan, August 4, 2010.
The population of this area is, according to Wikipedia, approximately 100,000.
Blue areas are flooded urban areas, greenish-grey the Kabul River and a tributary, brownish grey are flooded agricultural fields, red is vegetation, white or pale grey is houses or pavement. It’s about a 6 mile (10 km) square.
Via NASA’s EarthObservatory site.