As powerful as those lava flows are, they pale in comparison to the love of God. His love pushes past all barriers and can reach to any corner of the universe. However, unlike the lava, His love surrounds us, waiting for our acceptance. Once we do, we then become a part of this awesome force.
This is what Jesus asked of His disciples before His Ascension. It is also what He asks of us. He wants us to move out into the world and be a force of unstoppable love.