The US has promised $50m for relief operations and Kuwait pledged $100m.
Six helicopters have now arrived in Pakistan from the US airbase in neighbouring Afghanistan.
The US ambassador to Islamabad, Ryan Crocker, said planes with US relief supplies were forming a "virtual air bridge" into Pakistan.
He doesn't seem to be anywhere in sight. I don't see reports of mujahadeen helping those under the rubble, they're probably too busy trying to see if this is a political opportunity. The people of Kashmir should see that America the apostate is compassionate, more compassionate than the snake tongued 'servants' of Mohammed. We are there when it counts, no matter where in the world.