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Wednesday, August 23, 2006

Another light quake joins the swarm as the plates slide under us

Another light quake joins the swarm as the plates slide under us

"Gisborne residents who were awake at 6.08am might have felt a small earthquake yesterday morning.

The earthquake was felt throughout much of the eastern North Island. It was 5.2 on the Richter scale and was centred at a depth of 170km underground.

This depth is typical of earthquakes centred in this region. They are caused by the subduction of the Pacific Geological Plate under the East Coast.

Earthquakes centred in this region are generally 40-70km underground because this plate passes under us at this depth."

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