The North and South Island have been shaken by earthquakes today.

Shortly after midnight the Manawatu region was shaken by a magnitude 4.1 quake, 10km north of Whanganui at a depth of 90km, GeoNet reported.

Later in the morning, Christchurch was rocked by a magnitude 4.3 quake.

The quake hit just after 9am. It struck at a depth of 9km and was centred 10km east of the city.

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There have been no reports of damage.