the.com/seismology
listening to a planet think out loud through earthquakes, one trembling whisper at a time
earth ringsbig quakes make the planet vibrate like a bell
core proofmissing seismic waves revealed Earth's liquid outer core
nuke detectiontreaty monitors spot secret tests via ground waves
slowest wavessurface waves cause most of the deadly shaking
moon listensseismometers recorded moonquakes ringing for an hour