Sentinel Blog

When an earthquake strikes, the go-to resource for most New Zealanders is GeoNet. Following an event, people quickly jump onto the site to review the magnitude and the intensity of the quake or “reported shaking”. But before accepting this information, it’s important to first understand how GeoNet sources these reports.

We're excited to welcome a new team member on board here at Sentinel - our new Sales Representative, Jacqui Moorfield. Jacqui joined us on March 2, and she comes to us from - most recently - SOMO Creative and Make Collective. But that's not the half of Jacqui's story!

For the past ten years, Christchurch and surrounding areas have continued to experience on-going seismic activity. Sometimes the quakes aren't widely felt, others are short sharp jolts that see Twitter and Facebook light up. The severity of ground shaking during an earthquake, as it's related to specific building locations and the structure of those buildings, can have an impact on the safety of those buildings and whether they should be occupied or not.

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New Zealand has a very shaky history. The last decade has seen significant seismic activity, ranging from barely noticeable to highly destructive. And the science tells us that it will continue on this way - meaning that everyone, from individuals to business owners to managers of large infrastructure, needs to be ready for future events.

New Zealand – and specifically the Canterbury region - has become one of the most seismically active developed countries in the world. Since 2010, we've experienced many quakes ranging from barely felt to significantly destructive. Compared to other earthquake-prone areas of the world, this gives us relevant, recent experience that others don’t.

Many businesses look to the wrong data to make key decisions about their people and buildings in the immediate aftermath of an event.  

The Alpine Fault. Its next earthquake is overdue, making it quite possible that most Kiwis alive today will see it rupture in a magnitude-8 earthquake, leading scientists say. When it does, the entire South Island will be affected on some level; roads and railways broken or blocked, rivers dammed or diverted, many buildings damaged to some degree. Some towns will be cut off completely, possibly for months. And it’s not just the “big one” itself – there will be an entire sequence of multiple magnitude 7, 6 and 5 quakes rippling up and down the island for years afterward.

Earthquakes are a fact of life in New Zealand; they will happen again. Christchurch in particular has a history of damaging earthquakes – and not just since 2010. Since 1840, large earthquakes have shaken Christchurch about once every 10 years.