It is possible, but it happens rarely. The cause is usually a malfunctioning (or just dirty) condenser that prevents hot refrigerant gases from escaping, thus building up the heat and pressure in the compressor. If you notice dust and grime buildup on your condenser coil (especially if it is exposed), clean it! Not only will this help prevent an explosion, it will also improve the ventilation of your fridge, does making it more efficient.