WELLINGTON, New Zealand — Two strong earthquakes rattled different parts of New Zealand today but there were no initial reports of serious damage or injuries.

The first magnitude 5.6 quake struck off the coast of New Zealand’s North Island at about 1:20 p.m.

It was followed about five hours later by a magnitude 5.3 quake that struck the South Island and appeared to have been an aftershock from a powerful earthquake last week.

That quake last Monday was measured at magnitude 7.8 and killed two people after it struck just near the coastal town of Kaikoura.

The Pacific Tsunami Warning Center did not issue a tsunami warning for either of today’s quakes.

The epicenter of the first quake was about 120 miles northeast of the capital Wellington, according to the U.S. Geological Survey.

The second quake was centered 48 miles northeast of Christchurch and was felt in the city.

An earthquake in the city five years ago killed 185 people and destroyed thousands of homes.