The findings dramatically improve the known earthquake history of the Alpine Fault. Revising the Displacement History of New Zealand's Alpine Fault . The Alpine Fault runs for over 800km up the spine of the South Island. The Southern Alps have been formed over millennia by upthrust from successive earthquakes on the Alpine Fault. Through careful radio carbon dating, the evidence found at Hokuri Creek and John O'Groats reveals that the Alpine Fault has a long, remarkably regular history of large earthquakes. The findings published in the Bulletin of the Seismological Society of America suggest that some places along the fault, particularly around the towns of Hokitika and Greymouth, could experience strong ground shaking from Alpine fault earthquakes more often than previously thought.. Previously scientists had determined the ages for only the last four earthquakes … Scientists currently regard the fault as having several sections, each of which exhibits a different rupture history and all of which can generate a large earthquake. It’s the part of the active boundary between the Pacific and Australian tectonic plates where they intersect on land. A new study by GNS Science has found evidence for a previously unrecognised rupture in the first half of the 19 th century at the northern tip of the central section. Project AF8 is a collaborative effort to prepare for a magnitude 8 Alpine Fault earthquake. The Alpine Fault last got seriously testy in 1717 or thereabouts and before that, in descending order, 1620, 1430 and 1100. The Alpine Fault runs right through the heart of New Zealand's glacier county on the country's south island. The Alpine Fault ruptures—on average—every 330 years with a magnitude 8 earthquake. 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