Maple Creek Swarm Timeline (image) University of Utah Share Print E-Mail Caption Plot of magnitude versus time in color-matched subsets of earthquakes. The warm colors mark earthquakes in the northern cluster and the cool colors mark the earthquakes in the southern cluster. Credit University of Utah Usage Restrictions Credit as indicated. Share Print E-Mail 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.