Commercial flights had been set to resume on Sunday before a new earthquake struck the island nation. Aid efforts remained strained because of the difficulty accessing the Pacific island.

A magnitude-6.1 earthquake rattled buildings on Vanuatu's main island early Sunday but did not appear to have caused major damage, five days after a more powerful quake wreaked havoc and

A magnitude 6.1 earthquake rattled buildings on Vanuatu's main island early Sunday but did not appear to have caused major damage, just days after a massive, deadly quake wreaked havoc on the Pacific archipelago.