IMERG Video of Peru Rainfall (video) NASA/Goddard Space Flight Center Share Print E-Mail Loading video... Caption NASA's IMERG rainfall estimates were based on data collected during the period from March 14 to 21, 2017. Purple areas indicate the heaviest rainfall rates, where rain was falling at a rate of between 25 mm (~1 inch) and 50 mm (~2 inches) per hour. Credit Credits: NASA/JAXA, Hal Pierce Usage Restrictions None 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.