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Satellite-based measurements have shown that the partnersuche.de kündigen flank of partnersuche.de kündigen volcano is slowly sliding partnersuche.de kündigen the sea, while the other slopes are largely stable. To date, it has been entirely unknown if and how movement continues under water, as satellite-based measurements are impossible below the ocean surface.
The results confirm that partnervermittlung st petersburg vip entire southeastern flank is in motion. The driving force of flank movement is most likely gravity, and not the ascent of magma, as previously assumed. Catastrophic collapse involving the entire flank or large parts of it cannot be excluded and would trigger a major tsunami with extreme effects in the region.
50 erste dates kostenlos online anschauen results of the study partnersuche.de kündigen been published today in the international journal Science Advances.
Morelia Urlaub, lead author of the study. In Aprilthe GEOMAR team placed a total of five acoustic partnersuche.de kündigen transponder stations across the fault line that represents the boundary between the sliding flank and the stable slope. During their mission each transponder was sending an acoustic signal every 90 minutes. Since the speed of sound in water is known, the travel time of partnersuche.de kündigen signals between transponders gave information on the distances between transponders on the seafloor with a precision of less than one centimeter.
The flank slipped by four centimeters seawards and subsided by one centimeter within a period of eight days," explains Dr. This movement can be compared to a very slow earthquake, a so-called "slow slip event". It was the first time that the horizontal movement of such a slow slip event was recorded under water.
In total, the system delivered data for about 15 months. A comparison with ground deformation data obtained by satellite showed that the southeastern flank above sea level moved by a similar distance during the partnersuche.de kündigen observation period.
If magma dynamics in the centre of the volcano triggered flank deformation, displacement of the flank would be expected to be larger partnersuche.de kündigen than below water. This is crucial for hazard assessments. It is therefore quite possible that it could collapse catastrophically, which could trigger a tsunami in the entire Mediterranean," explains Professor Heidrun Kopp, coordinator of the GeoSEA array and partnersuche.de kündigen of the study.
However, the results of partnersuche.de kündigen study do not allow a prediction whether and when such an event might occur. Our investigation shows that the sound-based geodetic partnersuche.de kündigen network can be a tremendous help in this respect," summarises Dr. Gravitational collapse of Mount Etna's southeastern flank. Science Advances ; 4: It is the most active volcano in Europe.
The usage of the image material provided with this press release is free for editorial purposes in conjunction with the content of this press release. For images marked "CC BY 4. Fees, Cost of living partnersuche.de kündigen. Centre Research Studying Discover. The southeast flank of Mount Etna slowly slides towards the sea. Within eight days, the flank slipped about four centimeters.
A sudden and rapid descent of the entire slope could lead to a tsunami with disastrous effects for the entire region. The results have been published today in the international journal Science Advances.
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