/technologies/test-and-measurement/b/blog/posts/scientists-used-a-balloon-to-detect-an-earthquake-in-californiaAfter powerful earthquakes rumbled in Ridgecrest, California, NASA and Caltech researchers released four ballons into the air to detect the aftershock’s sound waves. (Image Credit: NASA/JPL-Caltech) Sometime between July 4th and July 6th, 2019, ...en-USTelligent Community 12