Sep 9 2010 - Web traffic over the first five days

The Darfield earthquake and its aftershocks have caused a great deal of traffic to the GeoNet website. This is an invaluable chance to test ourselves and improve our ability to respond when it counts.

The plot shows requests per second (in one minute averages) with the time of some of the significant aftershocks shown as a red diamond with the magnitude of the event. The first big spike is at the time of the mainshock, and every widely felt aftershock causes another peak in the traffic.

Website hits:

  • Saturday: 15 million
  • Sunday: 18 million
  • Monday: 40 million
  • Tuesday: 50 million
  • Wednesday: 64 million

The main website is hosted using three servers, one each in Wellington, Auckland and California. Thanks to great work from our ISP FX Networks and the improved peering in the New Zealand internet, the traffic is evenly distributed over the three servers. We're currently working with FX Networks to further improve the capacity of the website hosting - it's a project that's planned to be completed by February 2011. This week we are accelerating that plan and we aim to have another server added to the system by the end of the week. This will help to handle the requests for information about the aftershocks.

We've also received a huge number of Felt Reports, over 6,000 (to date) for the mainshock. Coupled with the data collected by the strong-motion network, these will be an invaluable scientific data set and we greatly appreciate people taking the time to provide this information even when their homes have been damaged.

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