Video: Dr Jan Kupec (CERA chief geotechnical engineer) explains liquefaction

The Canterbury Earthquake Authority (CERA) has launched a series of videos aimed at helping people understand what earthquakes have done to the land around Christchurch.

CERA chief executive Roger Sutton says people are really keen to know about geotechnical issues.

The videos feature CERA chief geotechnical engineer Dr Jan Kupec (The Dirt Dude) who is an expert on what is happening under the ground.

If you would like us to explore any other technical land issues or answer the questions that are bugging you most about the land please contact us on 0800 RING CERA (0800 7464 2372), email drkupec@cera.govt.nz, or tweet your questions to @ceragovtnz (http://twitter.com/ceragovtnz).