An interesting phenomenon, skyquakes have been recorded throughout history. (Or at least since the Louis and Clark expedition
) The general
consensus among scientists is that these loud booms in an otherwise clear sky are usually caused by large movements of the earth, fault lines moving
against one another etc..
There have also been recent cases in the US, where the booms shake the ground and are recorded on seismographs. These cases are usually attributed to
secret aircraft testing, as I can think of a few cases where the seismographs recorded the booms travelling up the coastlines at tremendous speeds.
Now in India, there have been blasts coming from the sky, and a research team there has concluded that the booms are not being caused by earth
movements. However, they are causing the ground to "jerk."
Senior IMD team member K C Kondal said, ‘‘Our observation suggests that the blast and jerks experienced in the region are not related to any
earthquake.’’ Elaborating further, Kondal said, ‘‘An earthquake produces waves from which its epicentre and intensity can be measured. But here, the
phenomenon is localised and superficial. Jerks observed here are limited to small areas and often not recorded.’’
) 
I suppose then it is
possible. 
