9:35 am today

Plate tectonics: Graham Leonard

From Saturday Morning, 9:35 am today
The Moon and Earth today both give us clues to the origin of plate tectonics, continents and why Aotearoa exists above the ocean at all. The Moon in front of Earth captured by NASA’s EPIC camera aboard the DSCOVR satellite.

The Moon and Earth today both give us clues to the origin of plate tectonics, continents and why Aotearoa exists above the ocean at all. The Moon in front of Earth captured by NASA’s EPIC camera aboard the DSCOVR satellite. Photo: NASA/NOAA

This week GNS released a high resolution update to the national Active Faults Database, detailing where the active faults are across the motu to support planning and engineering.

A map of felt reports from GeoNet.

A map of felt reports from GeoNet. Photo: GeoNet

GNS Principal Scientist Graham Leonard tells Susie and Mihi why we have so many earthquakes, tsunamis and volcanoes, and why NZ is above water when the remaining 95% of the Te Riu-a-Māui Zealandia continent is underwater. What's driving this inside our planet, and what has the sun and moon got to do with Earth's origin?

Graham and his team have also developed a board game called 5 Minute Volcano, which you can win!