Animation.
Seismic zones, earthquake epicenters on the world map.
Scheme of tectonic processes in the Earth's crust and the occurrence of earthquakes.
Determination of the earthquake's epicenter.
Seismic instruments in glass vaults.
Seismograph works.
Record fluctuations.
Volcano eruption underground; rise out of the water black and white smoke, a cascade of stones and ashes.
Key words
Science.
Geophysics.
Seismology.
Natural disasters.