New Zealand's tsunami trifecta a rare occurrence, expert says
University of Waikato School of Science senior lecturer and tsunami expert, Dr Willem De Lange (File Photo). As far as he can determine this is the first time in recorded history that three tsunami events have impacted in a 24-hour period, while all being generated by sources within New Zealand waters. “It’s very uncommon to have three tsunami occurring worldwide within 24 hours in different locations, but to have it being generated in one location in extremely unusual,” De Lange said. “It hasn’t happened in New Zealand and as far as I can tell in our database it hasn’t happene...