Magnetic Deflection of an Electron on Earth's Equator at 1000m Altitude

[TitaniumX]

Homework Statement

Question: An electron is located on the Earth's magnetic equator at an altitude of 1000m. In which diretion will it be deflected when it is projeted upward?

Homework Equations

Not sure

The Attempt at a Solution

I'm trying to study for an electromagnetism exam trying to do all the problems in the book, but this conceptual question stumble me. Can somene tell me how to approach this type of problem? Thanks

 

[haruspex]

Which direction is the field at that location? For the force on a charge moving in a magnetic field see http://en.wikipedia.org/wiki/Magnetic_field#Force_on_moving_charges_and_current.