Scientists think it's possible that Mount Everest may have gotten a bit shorter due to the changes in the Earth's surface caused by the quake. It's also possible that because the ground rose in parts of Nepal the world's tallest mountain could also be taller.
Geologists from the U.S. Geological survey need to get data from a GPS device located about 17 miles from the summit of Everest before any determination can be made. The device is no longer transmitting data, so researchers have to physically go get it to download the information it recorded during the quake. The earth moved not only up and down during the 7.8 quake but also from side to side and all of this movement could have changed the height of the summit.
Satellite data analyzed by geologists in Europe suggests that Everest may have shrunk in height by about an inch but no real determination can be made until climbers can actually be on the mountain and survey the damage up close.
(Source: National Geographic)