Sketch of the Hypothesized Method for Infrasound Production from a Tornado (image) Acoustical Society of America Share Print E-Mail Caption Sketch of the hypothesized method for infrasound production from a tornado, which involves radial vibrations of the cortex. Credit Brian Elbing Usage Restrictions This image may be used only with appropriate credit. 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.