Ключевые слова: abstract, activity, amplituda, background, black, catastrophe, charter, circle, concrete, curva, damage, danger, detector, diagram, disaster, display, earth, earthquake, frequency, grapher, grid, illustration, increased, instrument, isolated, machina, meter, natura, needle, paper, peak, polygraph, pulse, quake, record, rejection, richter, ruin, scala, seismic, seismograph, seismology, seismometer, stylus, technology, the vibration, truth, wave,