After the 22 February 2011 Christchurch earthquake, GNS Science installed continuous GPS (cGPS), water-level, and rainfall monitoring equipment on selected landslides in the Port Hills suburbs of Christchurch.
The purpose of the monitoring is to provide data for research into the post-earthquake performance of these landslides. The equipment is not maintained to provide an automated hazard warning. Installation and monitoring of the sites is carried out under the GeoNet project. The monitoring data are freely available to anyone via the links below.
The equipment is powered by batteries with solar recharge. The collected data are sent via the mobile phone network to the GeoNet Data Centre in Lower Hutt.
|Site code||Equipment installed||Date installed||Comments|
|WPA Water level||3/11/2011||Operational|
|WPB Water level||1/11/2011||Operational|
|WPC Water level||31/10/2011||Operational|
|WPD Water level||1/10/2011||Operational|
|WS1 Weather station||9/03/2011||Operational|
Monitoring of these sites does not mean that continuing movement is necessarily expected to occur. However, if future movement of these sites were to occur, then the information from the monitoring would be useful to assess what factors may have contributed to the movement. These factors typically include rainfall and/or further earthquakes.