11. The maximum intensity was X ( " Extreme " ) on the Mercalli intensity scale . 12. The small table is a rough guide to the degrees of the Modified Mercalli Intensity scale . 13. The maximum perceived intensity was X ( " Extreme " ) on the Mercalli intensity scale . 14. The scale is known today as the Modified Mercalli intensity scale ( MM or MMI ). 15. TORRO has also developed a hailstorm intensity scale . 16. The heaviest perceivable shaking, measuring approximately 4 on the Japanese intensity scale , occurred along the region's coastline. 17. The earthquake was felt with grade VIII ( " Severe " ) on the Mercalli intensity scale . 18. The Australian tropical cyclone intensity scale was introduced by the BoM, ahead of the 1989-90 cyclone season. 19. The following day, Nadi estimated that Yali had become a Category 3 cyclone on the Australian intensity scale . 20. First, Professor Bartoshuk and her associates asked people to rate the bitterness of PROP on an intensity scale .
