The Erciş-Van earthquake with magnitude Mw:7.2 that struck at 13:41 local time on Sunday, October 23,2011 in northern part of Van province affected an area ofabout 13.500 square kilometer at the Eastern Turkey.After several days from the Erciş- Van earthquake,another quake with magnitude Mw: 5.6 occurred onNovember 9, 2011 at am 21:23 local time in southwest ofthe city centre of Van province. Thousands of aftershocks,many in the magnitude 4.0 to 5.0 range, occurred duringthe next few months. This investigation describes theeffects of the aforementioned earthquakes on structuraldamage. In the first part, ground motion parameters andground deformations during earthquakes were presented.The second part deals with the local site conditions ofaffected settlement areas. In the last part, the attention isfocused on the effect of soil conditions on structuraldamage
