Seismic hazard in Canterbury

As a result of the 2010/11 sequence of earthquakes in Canterbury, there is a heightened risk of seismic activity over the next few decades. The Verification Method B1/VM1 has been amended to reflect an increased seismic hazard factor for the Canterbury earthquake region. The seismic hazard factor Z defined in NZS 1170 Part 5 (Table 3.3) has been raised for the Canterbury earthquake region.

See the:

• Amended B1 document.
• the Seismicity information sheet
• media release
• Building Controls Update No. 114

Further information about seismicity in Canterbury can be viewed on the GNS website.