the.com/seismology
listening to a planet think out loud through earthquakes, one trembling whisper at a time
means The scientific study of earthquakes and the seismic waves they send through the Earth, used to understand the planet's structure and movements.
from From Greek 'seismos' (a shaking, an earthquake) — itself from 'seiein,' to shake — joined to '-logia' (study of). 'Seismos' is the same root behind 'seism,' an old word for a quake. The compound 'seismology' is a 19th-century scientific coinage, born alongside the early instruments that first traced the planet's tremors onto paper.
- earth rings
- big quakes make the planet vibrate like a bell
- core proof
- missing seismic waves revealed Earth's liquid outer core
- nuke detection
- treaty monitors spot secret tests via ground waves
- slowest waves
- surface waves cause most of the deadly shaking
- moon listens
- seismometers recorded moonquakes ringing for an hour