ON THE POSSIBILITY OF RELIABLE FORECAST FOR LARGE EARTHQUAKES
At present time one can consider established, that the earthquake is caused by the rupture of entrails, which arises then, when the stress in environment of future rupture reaches maximum value. Therefore, continuously observing for the variation of stress at depth of the Earth one can realize forec...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.3667 http://kiska.giseis.alaska.edu/kasp/kasp04/abstracts/ivshin.pdf |
| Summary: | At present time one can consider established, that the earthquake is caused by the rupture of entrails, which arises then, when the stress in environment of future rupture reaches maximum value. Therefore, continuously observing for the variation of stress at depth of the Earth one can realize forecast for earthquakes. For working out of the method of continuous observations for the variation of mentioned stress the researches of displacement gradients were carried out, which are created by gravity at the veneer of the crust. With this purpose in Kamchatka in the mouth of the Nalycheva river, near Lesnoy settlement and on the rock of Avacha bay at a depth of about fifty meters were created special geomechanical sensors representing strongly bound with environment the vertical sleeve, in which the borehole tiltmeter of the model NIV-1 [1] is fixed for the transformation of mechanical signal into electric. As a result of the researches it was found, that for the increase of stress in interior part of the Earth one can watch by continuous observation with the help of the geomechanical sensors for the variation of the vertical gradients of horizontal displacement in surface layer of the earth'crust of the depth about fifty meters. Such researches were carried out in volcanic belt of Kamchatka with the help of two |
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