yes when a plate tectonic moves or grinds togeher it = a earthquke
It is called plate tectonics. The link below has more information on the subject.
It is both because earthquakes are gecologic events.
Because of plate boundaries. Visit this link to get more details about how it happens http://www.seismo.unr.edu/ftp/pub/louie/class/100/plate-tectonics.html
Haiti is located on the boundary between the North American Plate and the Caribbean Plate. The interaction between these two plates leads to seismic activity in the region, contributing to Haiti's vulnerability to earthquakes.
There is no obvious geological link between the two earthquakes as they had differing causal mechanisms, occurred on differing types of tectonic plate boundaries between two different pairs of tectonic plates. The two earthquakes occurred due to differing types of fault movement (thrust faulting in the Chilean quake vs strike slip faulting in the Haitian quake) and at two differing types of plate boundaries. In the case of the Chilean earthquake, this was at a convergent boundary where the Nazca oceanic plate is being subducted under the continental South American plate as opposed to the Haitian earthquake which occurred at a transform boundary between the Caribbean and North American plates which are both moving east but at differing speeds. For more information about the two earthquakes, please see the related questions.
All kinds of weather can occur during earthquakes as there is no link between weather and the occurrence of earthquakes.
England can and does experience earthquakes. However these tend to be of relatively low magnitude as the UK is located a long way from a tectonic plate boundary. For more information on seismic activity in the UK, please see the related link.
It is not near a fault line or tectonic plate border.
Tectonic plate boundaries in the US include the Pacific Plate, North American Plate, and Juan de Fuca Plate. The San Andreas Fault marks the boundary between the Pacific Plate and the North American Plate. The Cascadia Subduction Zone is the boundary between the Juan de Fuca Plate and the North American Plate in the Pacific Northwest.
There is no obvious geological link between the two earthquakes as they had differing causal mechanisms, occurred on differing types of tectonic plate boundaries between two different pairs of tectonic plates. The two earthquakes occurred due to differing types of fault movement (thrust faulting in the Chilean quake vs strike slip faulting in the Haitian quake) and at two differing types of plate boundaries. In the case of the Chilean earthquake, this was at a convergent boundary where the Nazca oceanic plate is being subducted under the continental South American plate as opposed to the Haitian earthquake which occurred at a transform boundary between the Caribbean and North American plates which are both moving east but at differing speeds. Please see the related questions for more information.
The locations of earthquakes support the theory of plate tectononics by the recorded happening are mostly on the outline of tectonic plates.
In part, yes, there is. The Pacific plate and North American (yes, the North American) plate converge off the east coast of Japan's northern islands. Further south, the Phillipine plate and Eurasian plate get into the act. Use the link below to check out a post and a pretty good map of the action. The link is to Wikipedia, and they've got the goods.