i believe volcano and earth quakes have the most effect.
Earth quakes tend to take place where the edges of tectonic plates meet. There is no one specific place where earth quakes happen, but California does have a lot of earthquakes. Earth quakes are caused by two plate sliding over each other, colliding into each other or pulling away from each other.
Haiti had two horrible tragic earth quakes! this year.
earth quakes
Earth quakes and tsunami (also volcanoes)
Earth quakes is a natural phenomenon who are occure in to collapse two titonic plates each other and create a two much vibration that movement we can say earth quakes and w can save our life to going under the hard thing such as:table,bed, and house door. so we can save ourself.
Earthquakes are most likely to occur at tectonic plate boundaries, where there is movement and interaction between the Earth's crustal plates. This includes regions such as the Pacific Ring of Fire, the Himalayas, and the San Andreas Fault. Areas near fault lines are also prone to earthquakes.
There are two faults in the UAE: the Western Coastline Fault and the Dibba fault zone. Both are strike-slip faults.
because water covers 71% of the world it only makes sense that since water covers the larger majority land mass that there would be more chance for mountains there also mountains are often caused by earth quakes when two or more tectonic plates run into each other and most earth quakes and volcanic activity which can lead to earthquakes take place in the ocean.
The truth is there is an earth quake every two min. But they are so soft we can't feel them. As far as I know we can't exactly say HOW many earth quakes there has been ever.
The kind of fault you may be contemplating about is a transform fault which occurs like all earth quakes when the Earth's tectonic plates move as sea currents change there appearance. A transform fault is the force of two surfaces rubbing across each other creating huge earth quakes like the ones of 1906 and 1989 in San Andreas.
highly movable plate boundary quakes