FIELD: physics.
SUBSTANCE: method involves interturn differential interferometry of the surface of the Earth to obtain pairs of complex radar images. Pairs of complex radar images which form an interference pair are obtained on time-separated turns. The pairs of complex radar images are recorded in accordance with tidal phases of the Moon and the Sun. The obtained differential interferometric images are compared with reference interferometric images. Upon detecting considerable differences between said images, parameters of the stress-strain state of the Earth's crust are calculated and the danger posed by damage thereof is evaluated.
EFFECT: high accuracy of detecting possible catastrophic phenomena.
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