Ключевые слова: aftershock, amplitude, artificial, audio, background, chart, decibel, diagram, digital, earth, earthquake, electronic, equipment, explosion, frequency, graph, illustration, line, measurement, music, needle, paper, polygraph, pulse, quake, radio, rate, red, rhythm, richter, seismic, seismogram, seismograph, seismological, seismology, seismometer, signal, sound, surface, technogenic, technological, technology, temperature, trace, vibration, volcanic, wave, waveform, weak,