>>105370384Well lets do the math. The formula for the amplitude of an earthquake, from the wikipedia article, is
M [richter magnitude] = Log10(A[amplitude in .01mm]) + 1.6Log10(D[distance])-.15
if we asssume a distance of say, 50 km, and make it a power of 10, we get
10^35 = A + 1.6*50 - .15
The Distance portion is negligible here so we can pretty much just say that A = 10^35, which is equal to
1*10^27 km
which is approximately 1100 times the diameter of the observable universe. So it would be pretty rough