About 30 million years ago when the pacific plate first hit the north American plate
once opon a time the san andreas fault was so big it git bigger and bugger
Couple of months ago
stress builds up on a fault line over time and then releases all of the stress in an earthquake.
If you are calling a major earthquake anything near a 5 on the magnitude scale, there was a 4.9 on April 15, 2010 in Randolph, UT.
New Zealend last week.
The last earthquake to affect Manitoba was in May of 1909. Although it's origin was never confirmed, it was thought to be from a small fault in Montana although there are some very small faults in Saskatchewan. The quake affected Saskatchewan more so than Manitoba, however was still very much felt here in Manitoba.
The last large quake on the San Andreas was the 1989 Loma Prieta earthquake, magnitude 6.9.
When the San Andreas Fault does generate an earthquake over 7.5, the results will be cataclysmic.
Missouri lies on the second largest fault line in North America. This fault line is over twenty years past due for major seismic activity. The last great earthquake in Missouri was so violent that it created East St. Louis.
Haiti
Haiti.
Couple of months ago
stress builds up on a fault line over time and then releases all of the stress in an earthquake.
If you are calling a major earthquake anything near a 5 on the magnitude scale, there was a 4.9 on April 15, 2010 in Randolph, UT.
last year.at 2011-3-11
Haiti and it was in February I think.
Cincinnati is not on or close to a fault line. The nearest active one is the New Madrid Fault Line, about 350 miles west of Cincinnati. The last major (7.5 or higher) New Madrid-line earthquake was in December 1811 and January 1812. The fault line actually closest to Cincinnati, Kilinc adds, is just south of Lexington, Ky., but it's not currently active.
There is a small to moderate risk of a major earthquake in Mexico. Last earthquakes with major loss of live were recorded on 1957 and 1985 with magnitudes of 7.9 and 8.1 on the Richter scale.