The lack of prevention measures and the ignorance of the real risks in an area with such seismic activity were some of the factors that increased the effects of the seaquake. To avoid similar events in future in the South of Spain, a research team of the University of Granada, in collaboration with Italian scientists, has set a project that has analysed the epicentres of the earthquakes happened in the past to determine the risks they could cause in future.
Until the moment, nobody knew the exact point where the disasters started, like the earthquake of Alhama in 1884 or that of Malaga in 1680, as the seismic stations that record the earthquakes and send the signal to the observatories to determine their localization did not start to work all-out until the beginning of the 20th century. According to the geo-physicist and professor of the UGR [http://www.ugr.es] Jesús Ibáñez Godoy, “the only trace that remains of historical earthquakes is their capacity for destruction, but in most cases we do not know their epicentre, a very important data if we take into account that they could happen again in future with the same intensity and in the same place”.
In this sense, Ibañez points out that very often the epicentre of the earthquake was not in the devastated area –this is the case of Alhama and of the earthquake that destroyed Lisbon in 1755 whose centre was in Cape San Vicente- but in a nearby area that due to the absence of population did not suffer the effects so much. But, several centuries later, such areas, where there were movements of six degrees in the Richter scale, could be inhabited, and therefore it is so important to determine “where the earthquakes originated”.
The method used by geophysicists of Granada to locate the epicentre of the seismic movements that took place several centuries ago has been the distribution by areas through a mathematical technique designed by them of the areas where the damages occurred to locate from there where the epicentre was.
The data extracted from this work are very useful to prepare risk maps. They will take into account not only the areas destroyed by the earthquake, but also the place where it originated and, therefore, the most liable to suffer damages in future. But this new contribution will not only be useful to get to know something more about the seismic past of the south of Spain but also to “carry out prevention measures that consider feasible construction formulas, edifications in compacted lands r the exact location of the areas that run higher risks in future to avoid major damage”, Ibáñez says.
NASA examines Peru's deadly rainfall
24.03.2017 | NASA/Goddard Space Flight Center
Steep rise of the Bernese Alps
24.03.2017 | Universität Bern
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
24.03.2017 | Materials Sciences
24.03.2017 | Physics and Astronomy
24.03.2017 | Physics and Astronomy