Seismic resistance professor Rossetto: “Two strong earthquakes don’t often cause each other”


Seismic resistance professor Rossetto: “Two strong earthquakes don’t often cause each other”
Kahramanmaras released 30 times more energy than the 1994 earthquake on the San Andreas Fault.Working in the field of earthquake engineering at University College London (UCL), Prof. Dr. Titian Rossetto stated that the earthquakes in the center of Kahramanmaras are two strong earthquakes that cause each other and said: “This is not a very common situation. We definitely do not think about it when developing seismic calculations.” Rossetto gave an assessment of the earthquakes in Kahramanmaras, which is called the “catastrophe of the century”, and explained the characteristics of these earthquakes and their differences from similar earthquakes: “We knew. But this is a very strong earthquake. the first big earthquake triggered the second big earthquake on the Eastern Anatolia fault line. Although we already had a big earthquake with destructive properties, a second big earthquake followed. It’s not very common. This is definitely not what we think about when developing seismic calculations. Giving information that tectonic plates cause earthquakes by pushing each other or moving in opposite directions, Rossetto said that these movements detect energy. Regarding the fact that earthquakes centered on Kahramanmaras are strong earthquakes that result in many deaths, Rossetto said: “If the fault line where energy accumulates is already close to breaking, they can be destroyed with a little energy. It happened here too. The energy and ground shaking of the first earthquake caused the second fault line to break. Probably the first broken fault line was close to somehow breaking and triggering a second earthquake.” – The release energy is 30 times greater than the 1994 earthquake on the San Andreas Fault in Kahramanmaras. He stated that there are very old structures that are not resistant to movements, and that new buildings are designed in such a way that they are not suitable for these movements: “It is not surprising that such a strong earthquake causes so many deaths.” “However, this earthquake had a magnitude of only 6.7 and 7.8 feet, which is at least 30 times greater in terms of energy release. It releases much less energy than energy.” Rossetto pointed out that large earthquakes cause more damage. He stressed the need to be prepared for these earthquakes. “The energy to cause an earthquake of this magnitude would have to accumulate over many years.” Rossetto also explained the occurrence and characteristics of earthquakes in the center of Kahramanmaras on a map. point, 3 tectonic plates are merging and colliding,” Rossetto said. They move and push each other. At this meeting point, a lot of energy accumulates and very large fault lines form. They move in opposite directions from each other. We call this meeting point the “triple intersection.” These points are points of high seismic activity.” Prof. Dr. Titian Rossetto said that aftershocks occur along tectonic plate boundaries in the example of the earthquake in Turkey. this is a normal situation. The energy accumulates over time and causes strong earthquakes. If there are small earthquakes that do not cause a strong shaking of the earth, the energy is released slowly. In the current example; The energy to cause an earthquake of this magnitude must be accumulated over many years. Therefore, 500 years is normal for earthquakes of this magnitude.” Emphasizing that the date of the next major quake on the same fault line cannot be predicted, Rossetto said: “There is no certainty that the next 7.8 quake will happen again in 500 years. Later. At the moment, the movement continues until the plates reach balance. We see this activity in aftershocks. There was a strong push, and now a slight push. Aftershocks can last several weeks, but there will be fewer of them, although we don’t know for sure.”
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