Sieberg Tsunami Intensity Scale 1 : A descriptive tsunami intensity scale, which was later modified into the Sieberg-Ambraseys tsunami intensity scale (Ambraseys 1962) described below
International Tsunami Information Center (A UNESCO/IOC-NOAA Partnership), Honolulu, HI, USA 2013.http://itic.ioc-unesco.org/index.php?option=c om_content&view=article&id=1868:online-glo ssary-2013328&catid=1142&Itemid=2435, (ND/ Tsunami Emr - Amer) {959}