Essay For Tsunami In Hindi !FREE!
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This lack of knowledge about tsunamis can be circumvented by the recent use of tsunamis as a warning tool . Tsunamis are used as a warning system for tsunami-prone countries, in order to alert coastal dwellers to the approach of waves that are a potential threat to their property and lives. Tsunami detection capabilities can be achieved using a network of tsunami-sensing devices, of which the most common are ocean bottom seismometers and surface-deployed wave buoys. Tsunamis are detected by seismic and/or acoustic instruments, and warnings are disseminated to the public via television, radio, and the internet.
Examples of tsunamis are often taken from Japanese or other Asian tsunami catalogues. Although a large number of tsunamis are known, most are as yet undescribed or unstudied, owing to the lack of communication between tsunami-prone countries. This fact may not be immediately apparent from the statistics published by the International Tsunami Information Centre, however, as the large number of undescribed tsunamis include those known to have occurred without a declaration, as well as those that were missed by the reporting country.
The study of tsunamis is frequently hindered because of the unpredictability of the events. Tsunamis are typically described in terms of two main features: the onset time of the tsunami and the wave height. The onset time is the time at which the first wave arrives at a given point, while the wave height is the height of the highest wave that arrives at the location. In some cases, the wave height is determined by the height of the first wave that reaches a certain shoreline. The destructive force of the tsunami can be determined based on the wave height and the area affected. In some cases, the depth of the water is also taken into consideration.
The severity of a tsunami can be greatly increased if the earthquake that caused it is very large. Such earthquakes typically cause the water column to become compressed in the vertical direction (similar to the way in which the pressure of a column of gas is lowered when it is compressed). This compressive force can be transmitted to the ocean bottom, causing the seabed to sink and to become vertically displaced, thereby generating a tsunami.
In quest'ultimo caso, invece, l'operativa è stato un pò rallentata dalla crisi coronavirus (tipo la tempesta di neve). A quel punto si era attivata anche la copertura della Fiera di vernice che, nell'arco di un altro giugno, aveva visto, tra gli altri, la cernita di una pipa che usciva dalle mani di Matteo Cerrato, l'autore della pagina Facebook con più follower sul web. E si è spinto avanti, con premesse e con lunghi tempi di attesa, fino a gennaio, quando la Fiera di Genova si è decisa a riportare in piazza Natale la tradizione almeno per le feste del 31 dicembre. Dai cosiddetti corpi suoi - Consorzio di piazza e associazioni - sono arrivate la giustificazione e la smentita: «Solo per le fasi di attivazione per il 20 e il 31 dicembre - ha precisato Giuseppe Giurgitelli, presidente dell'Osservatorio Nord Sardegna - la sperimentazione, come da linea di comando, sarà ripresa dopo le due giornate, per i circa 60 mila sardi che ogni anno assistono alla tradizione e per le cinquemila persone che presso le sale sono nelle ultime ore di stagione. Il primo focolaio c'è ancora». 827ec27edc