Tonga eruption from space (IMAGE) University of Hawaii at Manoa Caption Tonga eruption as viewed from a satellite. The air pressure perturbations associated with the initial wave front was seen clearly on thousands of barometer records throughout the world. Credit NOAA. Usage Restrictions No restrictions. License Public Domain 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.