A breakthrough study by Taiwan National Chung-Hsing University, Departmental of Civil and Environmental Engineering, has proven that the health of a structure can be accurately diagnosed by using only 3 seismic units. Analysing data from a large number of units over a number of earthquakes, the university was able to prove the ability of this new methodology to accurately show the health of a building. The system calculates the rigidity and actual displacement to provide rapid structural health diagnostics (RSHD). This greatly reduces the cost to determine building safety and also helps engineers to rapidly assess the health of the structure enabling companies to return to work as soon as possible in undamaged buidlings.

Prompted by the recent Kaikoura and Christchurch earthquakes, Callaghan Innovation purchased the cost effective Palert earthquake warning system to help improve staff health and safety. Installed by Jenlogix partner, Red Wolf Security, the system is installed in the offices of Callaghan in Wellington and Christchurch, providing warning of earthquake shock waves before they arrive, switching off/on emergency systems, and triggering visible and audible alarms, enabling staff to potentially exit the building before the destructive wave arrives.


Data from the system is sent to a central server, hosted by Red Wolf in their secure data centre, for processing. Combined with data from additional units in Wellington, Christchurch and other locations, the server can provide shake maps of the earthquake normally within a minute of a quake occurring. The data will also be sent to engineering firms to enable rapid determination of the health of the buildings after a severe shake.With over 3,000 units installed worldwide, the Palert P-wave seismic alarm system has proven itself at helping provide early warning where possible, plus supplying valuable data on the effects of an Earthquake. All products in the Palert range are independently calibrated and certified by an internationally ISO approved testing laboratory.
The breakthrough technology of the advanced, cost effective, Palert system can give you that warning and the chance to act before the main devastating shock wave arrives. A P-wave of an earthquake is like seeing lightning before hearing the thunder. Alternatively the Palert can be used to protect key assets. Even without any early warning the Palert can be used as a local Earthquake Detection System to manage local assets.
Callaghan Innovation, a Crown entity of New Zealand, has the task of making New Zealand business more innovative. It was established in February 2013 and the Crown Research Institute Industrial Research Limited was merged into it. Callaghan Innovation provide a single front door to the innovation system for businesses at all stages of their innovation journey – from start-ups to the most experienced R&D performers.
For more information please see the website
https://earthquakeearlywarning.systems
or contact Keith at 021840530, keith@jenlogix.co.nz

​In Greenland such a quake caused a tsunami. Could that happen in NZ? That's a very good question.

7.5 magnitude earthquake strikes near Hanmer Springs in South Island - two killed, Kaikoura isolated, Wellington CBD damaged.
See this link
Also Helicopter view
​
Over 24 hours later large aftershock affecting Wellington.

Our thoughts go out to all those who are suffering the major earthquake in Taiwan this weekend. As can be seen from this site the strength of the shake and aftershocks are greater than the actual 6.4 quake. Click on the link and then the arrow to the side of the quake to see how the earthquake developed. The dots are Palert systems that registered the quake as it happened.
http://palert.earth.sinica.edu.tw/