Ключевые слова: activity, colourful, danger, data, device, diagram, disaster, earthquake, earthquakes, environmental damage, frequency, geology, graph, graph paper, graphing, instrument, line, lines, measure, measuring, meteorological, motion, paper, physical geography, plate, plate tectonics, plates, radio wave, record, seismic, seismic measurement, seismic waves, seismicity, seismogram, seismograph, seismological, seismological device, seismology, seismometer, seismometry, sheet, sound wave, source, tectonics, tidal wave, volcanic eruption, volcano, wave, waveform, waves,