Ключевые слова: action, chart, computer, data, detector, diagram, disaster, erupting, erupting earthquake, exploding, fracture, frequency, geology, graph, measuring, mesh, natural disaster, nature, paper, pastry crust, perpetual motion, planet, pulsing, quake, radio, richter scale, science, seismic, seismogram, seismograph, seismology, sign, spiked, symbol, volcano, wave pattern, waveform, waving,