Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Christchurch badly damaged by magnitude 6.3 earthquake

Feb 22 2011 - Christchurch badly damaged by magnitude 6.3 earthquake

Christchurch has experienced a major earthquake centred south of the city, and severe damage and casualties have been reported.

The earthquake has
a reverse faulting mechanism (yellow beachball), The
stations used to derive it are shown by the green
triangles.
Click for big version

The earthquake has a reverse faulting mechanism (yellow beachball), The stations used to derive it are shown by the green triangles.

Map showing
measured Peak Ground Accelerations in the Christchurch
area.
Click for big version

Map showing measured Peak Ground Accelerations in the Christchurch area.

Last updated February 23, 7:00 am
Receive notification of all website updates on your mobile via Twitter
View our map of the latest aftershocks in the area
Follow the shaking: across the country or at the nearby McQueen's Valley seismograph
Read the list of the most recent aftershocks
Make your personal earthquake report for the magnitude 6.3 Christchurch earthquake

The city had been comparatively lucky with both the location and timing of last September's magnitude 7.1 Darfield (Canterbury) earthquake; the location of this one within 10 km of the city and at a shallow depth of 5 km during the middle of a working day has resulted in destruction, injuries and deaths.

Shaking intensity in the city was much greater for this earthquake than the magnitude 7.1 earthquake for any of its other aftershocks. The highest shaking was recorded at Pages Road Pumping Station at 188 %g, with readings of 127 %g at Heathcote Valley Primary School and 107 %g at Hulverstone Road Pumping Station. This is due to the proximity of the epicentre to the city and the shallow depth.

Seismologically, this is classed as an aftershock because of its relationship to the ongoing activity since September last year. Its occurrence was always statistically possible, but the long time interval and slow decrease in general activity had made it less likely. Unfortunately, it has happened after all and in a location that has brought the worst result.


ENDS

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Keep Digging: Seabed Ironsands Miner TransTasman Tries Again

The first company to attempt to gain a resource consent to mine ironsands from the ocean floor in New Zealand's Exclusive Economic Zone has lodged a new application containing fresh scientific and other evidence it hopes will persuade regulators after their initial application was turned down in 2014. More>>

Wool Pulled: Duvets Sold As ‘Premium Alpaca’ Mostly Sheep’s Wool

Rotorua business Budge Collection Limited (Budge) and sole director, Sun Dong Kim, were convicted and fined a total of $71,250 in Auckland District Court after each pleading guilty to four charges of misrepresenting how much alpaca fibre was in their duvets. More>>

Reserve Bank: Labour Calls For Monetary Policy To Expand Goals

Labour's comments follow a speech today by RBNZ governor Graeme Wheeler in which Wheeler sought to answer critics who variously say he should stop lowering interest rates, lower them faster, or that inflation-targeting should no longer be the primary goal of the central bank's activities. More>>

ALSO:

BSA Extension And Sunday Morning Ads: Digital Convergence Bill Captures Online Content

Broadcasting Minister Amy Adams has today announced the Government’s plans to update the Broadcasting Act to better reflect today’s converged market... The Government considered four areas as part of its review into content regulation: classification requirements, advertising restrictions, election programming and contestable funding. More>>

ALSO:

March 2017: Commerce Commission Delays Decision On Fairfax-NZME

The Commerce Commission has delayed its decision on the proposed merger between NZME and Fairfax Media's New Zealand assets, saying the deal is complex and it needs more time to assess the impact on both news content and the advertising market. More>>

ALSO:

Plan Plan: Permanent Independent Hearings Panel Proposed For Planning

The Productivity Commission recommends creating a permanent independent hearings panel like the one that cut through local politics to settle Auckland’s Unitary Plan, for the whole country. More>>

ALSO:

Statistics: NZ Jobless Rate Falls To 5.1% Under New Methodology

New Zealand's unemployment rate fell more than expected in the second quarter as Statistics New Zealand adopted a new way of measuring the labour market to bring the country in line with international practices, and while a growing economy continued to support jobs growth. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news