scholarly journals Investigation of Building Damage near Surface Fault Rupture of the 2016 Kumamoto Earthquake and Countermeasures for Active Faults

2020 ◽  
Vol 20 (2) ◽  
pp. 2_90-2_132
Author(s):  
Yoshiaki HISADA ◽  
Shinya TANAKA ◽  
Junpei KANEDA ◽  
Ayano TERAMOTO ◽  
Wataru NAKAMURA ◽  
...  
Keyword(s):  
Active Faults ◽  
Building Damage ◽  
Fault Rupture ◽  
2016 Kumamoto Earthquake ◽  
Near Surface ◽  
Kumamoto Earthquake ◽  
The 2016 Kumamoto Earthquake

Investigation of Damages in Immediate Vicinity of Co-Seismic Faults During the 2016 Kumamoto Earthquake

2017 ◽  
Vol 12 (5) ◽  
pp. 899-915 ◽  
Author(s):  
Shohei Naito ◽  
Ken Xiansheng Hao ◽  
Shigeki Senna ◽  
Takuma Saeki ◽  
Hiromitsu Nakamura ◽  
...  
Keyword(s):  
Fault Zone ◽  
Active Fault ◽  
Strong Motion ◽  
Site Amplification ◽  
Building Damage ◽  
2016 Kumamoto Earthquake ◽  
Severe Damage ◽  
Kumamoto Earthquake ◽  
The 2016 Kumamoto Earthquake ◽  
The Relationship

In the 2016 Kumamoto earthquake, the Futagawa fault zone and the Hinagu fault zone were active in some sections, causing severe damage in neighboring areas along the faults. We conducted a detailed investigation of the surface earthquake fault, building damage, and site amplification of shallow ground within about 1 km of the neighboring areas of the fault. The focus was mainly on Kawayou district, Minamiaso village and Miyazono district, Mashiki town, and locations that suffered particularly severe building damage. We explored the relationship between local strong motion and building damage caused in areas that were in the immediate vicinity of the active fault.

The Importance of Seismic Death Risk Assessment of Households in the Kumamoto Earthquake of 2016

2017 ◽  
Vol 12 (6) ◽  
pp. 1151-1160 ◽  
Author(s):  
Tadayoshi Nakashima ◽  
◽  
Shigeyuki Okada ◽  
Akane Shinoda
Keyword(s):  
Risk Assessment ◽  
Decision Making ◽  
Building Damage ◽  
2016 Kumamoto Earthquake ◽  
Death Risk ◽  
Kumamoto Earthquake ◽  
The 2016 Kumamoto Earthquake ◽  
Return Home ◽  
Reduction Effect ◽  
Over Time

This paper discusses the reduction effect of a foreshock on casualties during the mainshock of people who evacuated to shelters and their private cars during the 2016 Kumamoto earthquake. In the first part of this paper, we discuss the number of human casualties caused by the collapse of wooden buildings. The characteristics of casualties in the Kumamoto earthquake are classified as household attributes and building damage caused by the foreshock and mainshock. In the second part, we apply equations (Nakashima and Okada 2008 and Okada and Nakashima 2015) to the Masiki area to determine the total number of casualties with a focus on deaths. The number of deaths due to total building damage from the foreshock and the mainshock in the case of 0 evacuees was estimated as 147. We then estimated the reduction effect on the number of casualties caused by the foreshock by using the survey data of the mainshock and foreshock. We found that evacuation during the mainshock decreased the death toll by 128 people. Moreover, the number of injured people decreased by 657. Generally, most people who evacuate tend to return home over time. As a result, many people die at the time of a subsequent mainshock. It is important to provide death risk information to each household to support their decision-making regarding appropriate evacuation.

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