Ключевые слова: activity, colourful, danger, data, device, diagram, disaster, earth, earthquake, earthquakes, environmental damage, frequency, geology, graph, graph paper, graphing, illustration, illustrative, instrument, line, lines, measure, measuring, measurment, meteorological, motion, paper, physical geography, plate tectonics, risk, ruler, seismic, seismic measurement, seismic waves, seismogram, seismograph, seismological, seismological device, seismology, seismometer, seismometry, sheet, source, tectonics, vignette, vignetting, volcanic eruption, volcano, wave, waves,