Two earthquakes shake South Island

Last updated 00:22 11/07/2012

Relevant offers

Two earthquakes, measuring magnitude 4.5 and 4.6, shook the South Island within a minute of each other last night, GNS Science says.


Did you feel the earthquakes? Share your story.


The first quake, a shallow magnitude-4.5 shake was strongly felt in Christchurch when it struck at 11.32pm, GNS Science reported. It was centred 10 kilometres southwest of Christchurch and was 11km deep.

The quake's strength was revised down after earlier being reported as magnitude 5.0.

The first quake was followed less than a minute later by a 4.6 quake, 20km northwest of Blenheim. The 70km deep quake was felt in Marlborough, GNS Science said.

GNS seismologist Dr Bill Fry said it was possible that the shaking of the Christchurch quake had trigged the Blenheim quake, though they had occurred on different fault lines.

A police communications spokesman said there were no immediate reports of damage following the earthquakes.

Ad Feedback

- Fairfax Media

Comments

Special offers
Opinion poll

Which memorial design do you like most?

Memorial Wall with a reflective pond

Table and Chairs

A Green and Peaceful Landscape

Call and Response

Riverside Promenade

A Curved and Inclusive Memorial Wall

Vote Result

Related story: Christchurch earthquake memorial designs unveiled

Featured Promotions

Sponsored Content

Then and Now