Twin earthquakes hit northwest Iran near the Azerbaijan border, injuring thousands and killing over 300. Simple mud brick homes in the sparsely populated region collapsed quickly in the quakes, the larger of which measured 6.4 on the Richter Scale. Iran sits on several active fault lines and experiences earthquakes regularly. With western media hindered by restrictions in Iran, many of the images presented here are by Iranian news services, including the Iranian Students' News Agency . Images are presented as transmitted to Reuters and GettyImages. -- Lane Turner ( 21 photos total