Eyleen Chou couldnâ??t hear the screams.She did not see the buildings collapse as lives and entire families were wiped out in an instant. Surveying in fields 70 miles north of Port-au-Prince, Haiti, the University of Wisconsin-Madison engineering student felt only a tremor Jan. 12 as a 7.0-magnitude earthquake ripped through the countryâ??s capital city. But she still feels the aftershocks from the tragic event.