Trembling Vibrating

Trembling Vibrating
A very loud Rumbling noise?

I Live in Brampton Ontario Canada, Every now and then I hear a Very loud Rumbling noise outside.
I live no where close to any Airports or airways there is a train track that runs behind my court but trains only go by one a year in October.
The noise sounds like Roaring, Trembling, It shakes the windows sometimes.
The sound has yet to be explained, At this very moment it sounds like a deep vibrating roar.
Can anyone explain this?

I would have to say that the rumbling noise is coming from an airport. In the right condition, right athmospheric pressure (in qnh.) and at the right time when wind direction is coming your way, you will hear some jet noise, and from many miles away, you can hear it as a loud rambling noise, like you have described. Canada's busiest airport, Toronto Pearson International Airport (YYZ), is located near Brampton, in Mississauga. For general aviation the city is also served by the privately owned Brampton Airport (NC3), located to the north of the city in neighbouring Caledon. There is also a big maintenanance base for jet engines at Pearson International Airport, and periodically, they will do static tests of jet engines, at full power, sometimes using afterburners. Their sound is truly deafening, and the physics of sound and vibration can carry through for miles.

It doesn't help also in terms of long distance acoustics generation that Pearson has an elevation of 569 ft above MSL (mean sea level) (173 m) and has 5 major runways. Simultaneous take-off of aircraft at full power in the right direction will generate thunderous noise which will carry through for many miles (as far as 50miles away). Check the compass rose and your postion/direction relative to the airport. It maybe that's what's causing the commotion.

Rastafari Nyabinghi Grounation & CELEBRATION JAMAICA 1994 or 1995