Ground shaking heat maps are now viewable on the website -- which illustrate the intensity of shaking caused by quakes in different parts of the country.
It uses data from ground motion sensors, and are automatically produced within 10 to 20 minutes of a magnitude 3.5 or greater earthquake.
GNS Seismologist, Dr Nick Horspool says the maps could help emergency responders work out where the highest potential damage to buildings and infrastructure could be.
