TAIPEI, Taiwan (AP) — A powerful earthquake rocked the entire island of Taiwan early Wednesday, collapsing buildings in a southern city and creating a tsunami that washed ashore on southern Japanese islands. A five-story building in lightly populated Hualien appeared heavily damaged, collapsing its first floor and leaving the rest leaning at a 45-degree angle. In the capital, Taipei, tiles fell from older buildings and within some newer office complexes. Train service was suspended across the island of 23 million people, as was subway service in Taipei. But things quickly returned to normal in…