Another quake shakes North Island

Last updated 19:38 26/06/2014

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A magnitude 4.8 earthquake rumbled Whanganui this afternoon.

The moderately strong quake, at 3.59pm, had its epicentre 40 kilometres south-west of Whanganui, and was 40km deep, according to Geonet. 

Geonet initially reported the quake as magnitude 4.7, but later upgraded it to 4.8.

Reports on Twitter ranged from "just a wee shake" at Wellington's Central Library, to "a notable jolt" from one MP.

This follows a quake this morning which also rattled the lower North Island.

GNS Science Caroline Holden said today's two quakes were unrelated. 

She believed the Whanganui quake may have been connected to the slow-earthquake currently taking place along the fault-line off the Kapiti Coast and up the North Island.

A slow-slip quake has the same tectonic forces as a typical felt earthquake, but occurs overs weeks or months as opposed to seconds.

She said this morning's quake in Tararua was not an unexpected one.

Aftershocks of this magnitude were projected to rumble the Eketahuna area about once every month, following the magnitude 6.2 shake in January.

"But two [magnitude 4 shakes] in one day is enough for today."

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- The Dominion Post


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