April 17, 2011 – AUSTRALIA – This is the second 5.2 earthquake to strike the Australia area in 48 hours. The latest quake struck just off the coast of Northwest Australia at a depth of about 13 km. On April 16, a 5.2 earthquake rattled Queensland. It was the largest earthquake to strike the region in more than 70 years. The Ring of Fire is kinetic and growing more turbulent as tectonic plate agitation increases.