The hypocentre (the point within the Earth where the rupture actually occurred) of the January 2010 earthquake was located at a depth of 13 km below the surface.
The earthquake's epicentre (the point on the surface directly above the earthquake rupture zone) was 25 km WSW of the Haitian capital city, Port-Au-Prince. According to the US Geological Survey the exact co-ordinates were 18.457°N, 72.533°W. The hypocentre (the point within the Earth where the rupture actually occurred) was located at a depth of 13 km below the surface. Please see the related links and question.
Assuming that you are referring to the earthquake that occured in January 2010, the focus or hypocentre (the point within the Earth where the rupture actually occurred) was located at a depth of 13 km below the surface. Please see the related question for further information.
The epicentre of an earthquake this the point in the earth where the earth moved (fractured) to cause the shaking of the ground. The 2010 Haiti earthquakes epicentre was located 15 miles WSW of Port-Au-Prince and was at a depth of 8.1 miles. it was a 7.0 magnitude earthquake.
Haiti is sandwiched north and south between two fault lines: the Septentrional Fault and the Enriquillo-Plantain Garden Fault. The epicenter of the Haitian earthquake of 12 January 2010 was 10 miles south of the capital Port Au Prince, directly on the Enriquillo-Plantain Garden Fault , at a depth of about 5.2 miles underground.
The earthquake was so destructive for a number of reasons:The earthquake occurred at shallow depth - this means that the seismic waves have to travel a smaller distance through the earth to reach the surface so maintain more of their energy in particular this meant that the surface waves (which cause the vast majority of the damage during an earthquake ans which are the most rapidly attenuated and and have significant reductions in amplitude as the depth of the earthquakes focus increases) produced by the earthquake maintained a large amount of their energy maximising the damage they cause.The earthquake occurred in close proximity to a populated area. This again means that there is very little attenuation of the seismic waves (i.e they still have most of their energy and so are more destructive when they arrive).The buildings in Port-au-Prince and other areas of Haiti were in very poor condition in general and were not designed or constructed to be earthquake resistant.Please see the related question for further information.
what is the maximum depth of a deep-focus earthquake
There is no way to answer this. The magnitude of an earthquake does not correlate with its depth.
0 depth is the surface of the earth,and increasing depth is downwards
Haiti's a very congested country, there are small buildings and houses as far as the eye can see. A 7.0 earthquake would crush any small structures in it's vicinity. Plus there were at least 52 aftershocks ranging from 4.5 up.The earthquake was so destructive for a number of reasons:The earthquake occurred at shallow depth - this means that the seismic waves have to travel a smaller distance through the earth to reach the surface so maintain more of their energy.The earthquake occurred in close proximity to a populated area. This again means that there is very little attenuation of the seismic waves (i.e they still have most of their energy and so are more destructive when they arrive).The buildings in Port-Au-Prince and other areas of Haiti were in very poor condition in general and were not designed or constructed to be earthquake resistant.
The distribution of earthquake with regard to the location and depth of focus can be best explained with tectonics.
The 2010 Chilean earthquake first hit just off the coast of Chile 325 km SW of Santiago at the depth of 59.4 km at 06:34 UTC. More accurately it occurred Latitude -35.83 and Longitude -72.67.
230km