Complex sentence: The people of the island rallied with speedy humanity to the cause of helping their fellow man, got hot drinks, blankets, and many opened their houses to the unfortunate victims of this man-made disaster.
Split into simpler sentences: The people of the island rallied with speedy humanity to the cause of helping their fellow man. They got hot drinks and blankets, and many opened their houses to the unfortunate victims of this man-made disaster.