Earthquake strikes off New Zealand's North Island

The quake at 6:16pm (0516 GMT) was centred 204 kilometres (126 miles) deep and about 300 kilometres northeast of Auckland.

The tremor was not widely felt on the mainland and police said there were no immediate reports of damage or injury.

A shallow 6.3-magnitude quake devastated New Zealand's second largest city of Christchurch in February last year, leaving 185 people dead.

Meanwhile, reports also say a powerful 6.2-magnitude earthquake rocked the southern Philippine island of Mindanao on Saturday triggering panic, but there were no immediate reports of any damage or casualties.

The quake struck at 12:37 pm (0437 GMT), off the coast, about 30 kilometres (19 miles) northeast of the town of Sarangani, said the government seismology institute.

Residents said people rushed out of buildings in panic after the quake sent lighting fixtures swaying.

The government institute said it did not expect any damage or casualties and there was no risk of a tsunami.

The Philippines sits on the Pacific Ring of Fire -- a belt around the Pacific Ocean dotted by active volcanoes and tectonic trenches.

A 7.6-magnitude quake hit the country's east coast in August last year, triggering a tsunami alert that forced tens of thousands to flee their homes and causing a landslide that killed one person