Typical evolution of the eccentricities in simulations where the Laplace resonance is disrupted. Column a: case B with ϖ₂ − ϖ₃ ∼ 0; all the eccentricities remain below 0.04. Column b: case B with ϖ₂ − ϖ₃ in circulation and ϖ₃ − ϖ₄ ∼ 0; the eccentricity of Callisto increases until the pure three-body resonance is disrupted. Column c: case B with ϖ₂ − ϖ₃ in circulation and ϖ₃ − ϖ₄ ∼ π; the eccentricity of Ganymede increases until the pure three-body resonance is disrupted.