Tsunami warning lifts after 7.1 Tonga earthquake
A strong 7.1 magnitude earthquake has hit near the Pacific nation of Tonga and an initial tsunami warning was lifted hours later.
geology
Remnants of NZ supereruption found in Tasmanian wetland
Invisible volcanic glass shards found in Tasmanian wetland sediment may have originated from the supereruption of New Zealand's Taupo Volcano 26,000 years ago.