Visiting site of subsidence (IMAGE) University of Houston Caption Khan took a group of students from the National Association of Black Geoscientists to Moorehead Drive in Spring Branch, where the Long Point fault caused subsidence of the ground. The fault, Khan said, is no longer active. Credit University of Houston Usage Restrictions Credit University of Houston License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.