Earthquake engineering experts say that the quake that occurred in southern Turkey was called a "killer pulse," with a period of one to two seconds per tremor, and caused damage to buildings in particular. pointing out that it is possible.
Program-specific professor Shinichiro Mori of Ehime University, who specializes in earthquake engineering, analyzed seismometer data in Turkey regarding this earthquake.
As a result, it was found that the shaking of this earthquake was called a "killer pulse" with a period of about 1 to 2 seconds, and it may have been easy to expand the damage to buildings in particular.
The "killer pulse" was also observed 28 years ago when the Great Hanshin-Awaji Earthquake occurred.
Program-Specific Professor Mori said, "'Killer Pulse' is a seismic wave that has a great destructive force on buildings. Even if it meets the seismic standards, it is possible that the shaking was strong enough to cause it to collapse." pointed out.
In addition, in a field survey conducted by Program-Specific Professor Mori in Turkey 24 years ago, many of the collapsed buildings were made of brick, and the strength of the pillars and beams was weak. There were many, so he said, ``From the local video, you can see some buildings that have escaped collapse, but in reality it is a very dangerous situation because there is a fine line between whether it will collapse or not.''