Perhitungan Kekuatan Gempa

ukuran gempa sekarang dinyatakan dengan 'magnitude', bukan lagi pakai skala Richter.
Misal: longsor magnitudo 2, gempa tsunami magnitudo 7

Perhitungan manual pakai logaritma, rada repot. Mudahnya pakai kalkulator gempa: https://earthquake.usgs.gov/learn/topics/calculator.php

Hasilnya:
A magnitude 7 earthquake is '100000' times bigger than a magnitude 2 earthquake, but it is 31622776.601 times stronger (energy release)