A 'strong' magnitude 4.8 earthquake has hit near Seddon overnight.

The quake, which occurred at 9.42pm, was at a depth of 11km and was 15km east of the town.

More than 2100 people have reported feeling the shake on GeoNet's website.

A "felt" report has come in from as high up the country as Whangarei.

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Less than half an hour after the strong shake a "moderate" 4.1 magnitude shock struck 20km southeast of Seddon, at a depth of 14km.

The 4.8 quake came 10 minutes after a "moderate" magnitude 4.5 earthquake, 35km west of Paraparaumu, at a depth of 27km.

GeoNet's visual representation of 'felt' reports from people around the country. Photo / GeoNet
GeoNet's visual representation of 'felt' reports from people around the country. Photo / GeoNet