Pittsburgh-Area Landslide (IMAGE) Geological Society of America Caption One of the more than 200 landslides observed in the greater Pittsburgh region after record-breaking rain in February–April 2018. The slide blocked the main access road into a large housing development and ultimately led to demolishing three houses at the top. Source: Helen Delano, Pennsylvania Geological Survey. Credit Helen Delano, Pennsylvania Geological Survey Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.