Update: Another quake, at least as big as the earlier 5.8, struck the city at 3.18pm and significant aftershocks are still continuing (3.35pm) Some locals are saying the latest was a 6.4. The USGS gave a figure of 5.8 for the 3.18 earthquake and a depth of 4.9km, located at 43.491°S, 172.844°E. That puts it…