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 killed 12 people.
The nation's most populous island, Efate, is still reeling from the deadly 7.3-magnitude temblor on Tuesday, which toppled concrete buildings and set off landslides in and around the capital of Port Vila.
