Red bullseye indicates location where Sunday’s meteor (or bolide) exploded over California’s Central Valley. The yellow triangles mark infrasound arrays which were key in determining the location of the meteor’s explosion. An infrasound array consists of detectors that allow the direction of the incoming wave to be determined by time delay of the arriving sound between the detectors. The two arrays depicted here are part of a worldwide network of infrasonic observatories. Image Credit: WUC/Google Earth