dogs usually align themselves with the north/south axis and how this is dogs have sensitive chemicals which allows them to sense the earths axis
The point directly above the focus of an earthquake is called the epicenter. It is usually the point of greatest destruction.
The epicenter
the vertex of the angle
They align themselves with earth's Magnetic Field.
Epicenter
There is no point on the earths surface that experiences night for 24 hours every day.
The focus is the point in the earths crust where the earthquake originates and the epicentre is the point in the earths surface directly above the focus.
reference point
The North Pole
Marianas Trench.. :)
Yyu
The Dead Sea