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腄腇 膰膵膐臭臣 腅腁 膇膹膄膽 腬腮腬膧臛膇膹膄膽 臮膓臝膆臡臎膛膏臅 臐臠臺臘腳腱腴 臡臜 膧膖腵腂腭膘臛腟 膧膖膍腌腦腽 腝腲腴腯臌腝腵腂 腙腟臀膈膩臬 腫腹 腔腨 腭腫臊膼腓腜腍腦臷膨腔腨腑腚腙 臡臺 腞臋膮腜 臐臠臹膩腳腱腴 腞膙膊腫臥膂腓腘臡 膜膫臹腫膘臛腔腨膿 腙腈腨 腝臞腓腕膭臁致膼腲腴腯腫膲 腒腦腝臏膢膥臚 致膼膟腍 腖腘腏腨腡腙腞膷膊腌腦膧膖膍腚臡 腜腛腞臆膑臃 腫膀腊腘膯臓腒腩腕臡膗腳腱腴腙腈 臺腚腞膒 腫膘臛腓 腙膧膖膍腞 膸膜臧腜腷臢 臟膷膊腝膤臵腸腞腱腂腰膾臱腍膁至腙 膘臛 臬腍 膉臒膘臛臙臢 膩腏臛臦 膡腍腼臤腝膔腉腕腢腝 臍臔腝 腪腩腕臡腺 腙膧膖膍腞膴臑膅腫膎腢 腑腩腦腞腱腂腰腌腦腵腂腭臊 腙腣臡臺 腞臕 腜臸臡膗腫膬膞腔腨腑腚腍膁至腙腈 膼臡臩腞 膸膜腷臢腫膱臂腔腨 腒腦腝 臐腞致膼腲 膔臲 膧膖腵腂腭膘臛腍膻 腾腒腩 腴腯腫膺 腔腨腑腚腝腥腧 臯腞膩腒腚臡 腞膩腒 腞膰 膢腝腋腐腨膧膖腵腂腭膘臛腞臨 腫膕 腙腎腨 臄膌致膼腲腴腯腌腦膯臓腔腨 腠腌 腞膧膖腵腂腭膘臛腝腣腚腗腏臖 腶膝 膝膣膳 膚自 臻自臈 自臼 臉自 膪臰臶 腍腝 腆腁 腒腖 腕腌 腠腓 腅腂腆腃 腎腌腊腁腉腍腐腃腇腈 腕腖腒腗腓腑腏腄腑腋腘腔 321 Bull. Earthq. Res. Inst. Univ. Tokyo Vol. pp. * e-mail : [email protected] Hokuriku Electric Power Co., Ltd., Asia Air Survey Co., Ltd. , Earthquake Research Institute,the University of Tokyo The Noto Hanto earthquake (M . ) occurred in the area where the m-Digital Elevation Model had been developed by airbone LiDAR. This data package could provide an exceptional opportunity to study crustal deformation associated with the earthquake. We acquired airbone LiDAR data immediately after the Noto Hanto Earthquake for comparison. We improved the accuracy of DEM to detect earthquake deformation. As a result, di erences of elevation between the flight courses were within . m according to the elevation adjustment for whole area. The resultant elevation change suggests an uplift of the coastal area, including Sekinohana in Shika Town, where a maximum uplift of . m was observed. Elevation changes were not observed km from coastline at an extension of the earthquake source fault in sea area. The pattern of the ele- vation change accords well to the results from leveling, GPS, and interferometric SAR data. It was the first attempt in the world to detect crustal deformation associated with an earthquake using airborne LiDAR. : The Noto Hanto Earthquake, Airborne LiDAR, DEM, crustal deformation Digital Surface Model : DEM Digital Elevation Model : Fig. Fowler GPS IMU Inertial Measurement Unit : Okazaki DSM * Koji Nohara *, Takeo Noguchi , Fumihiro Anada , Masaaki Hamada , Satoshi Onoda , Yoichi Numata , Yoshiki Yamano , Yusuke Suzuki and Hiroshi Sato et al., et al. Abstract Key words The Crustal Deformation Associated with the Noto Hanto Earthquake Studied Using Airborne Li- DAR + , - + , - + + + + , , , , - + + + + , , , , - 2, ,**1 -,+ --+ 3-* 2020 +/ + ,**1 03 + ,**1 # * */ * ./ - ,**1 - + ,**1 - - ,**0 ,**1 + ,**1 ,**1
11

The Crustal Deformation Associated with the Noto Hanto ... · from coastline at an extension of the earthquake source fault in sea area. The pattern of the ele-vation change accords

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Page 1: The Crustal Deformation Associated with the Noto Hanto ... · from coastline at an extension of the earthquake source fault in sea area. The pattern of the ele-vation change accords

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Bull. Earthq. Res. Inst.

Univ. Tokyo

Vol. pp.

* e-mail : [email protected]

Hokuriku Electric Power Co., Ltd., Asia Air Survey Co., Ltd. , Earthquake Research Institute,the

University of Tokyo

The Noto Hanto earthquake (M . ) occurred in the area where the m-Digital Elevation

Model had been developed by airbone LiDAR. This data package could provide an exceptional

opportunity to study crustal deformation associated with the earthquake. We acquired airbone

LiDAR data immediately after the Noto Hanto Earthquake for comparison. We improved the

accuracy of DEM to detect earthquake deformation. As a result, di erences of elevation between

the flight courses were within . m according to the elevation adjustment for whole area. The

resultant elevation change suggests an uplift of the coastal area, including Sekinohana in Shika

Town, where a maximum uplift of . m was observed. Elevation changes were not observed km

from coastline at an extension of the earthquake source fault in sea area. The pattern of the ele-

vation change accords well to the results from leveling, GPS, and interferometric SAR data. It was

the first attempt in the world to detect crustal deformation associated with an earthquake using

airborne LiDAR.

: The Noto Hanto Earthquake, Airborne LiDAR, DEM, crustal deformation

Digital Surface Model :

DEM Digital Elevation

Model :

Fig. Fowler

GPS

IMU Inertial Measurement Unit :

Okazaki

DSM

*

Koji Nohara *, Takeo Noguchi , Fumihiro Anada , Masaaki Hamada , Satoshi Onoda ,

Yoichi Numata , Yoshiki Yamano , Yusuke Suzuki and Hiroshi Sato

et al.,

et al.

Abstract

Key words

The Crustal Deformation Associated with the

Noto Hanto Earthquake Studied Using Airborne Li-

DAR

+ , -

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Page 2: The Crustal Deformation Associated with the Noto Hanto ... · from coastline at an extension of the earthquake source fault in sea area. The pattern of the ele-vation change accords

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Fig. . Illustration of geodetic laser scanning.

Fig. . The traces of the flights.

Table . Data acquisition parameters for airborne

laser survey.

m-DEM m-Digital Elevation Model :

m

m-DEM

DEM

DEM

m-DEM

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km m-

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DEM

TIN Trian-

gulated Irregular Network :

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RMS Root Mean Square Error DEM

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cm

cm Ozawa

m-DEM

et al.,

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DEM

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.

Fowler, R.A., A. Samberg, M. J. Flood, and T. J. Greaves,

, Topographic and Terrestrial Lidar, American So-

ciety for Photogrammetry and Remote Sensing., Digital

Elevation Model Technologies and Applications : The

DEM Users Manual nd Edition, .

Fukushima Y., T. Ozawa and M. Hashimoto, , Fault

model of the Noto Hanto earthquake from PAL-

SAR radar interferometry and GPS data,

, .

Honda R., Y. Hiramatsu, Y. Kono and H. Katagawa, ,

Gravity anomalies and the geologic block structures in

and around the aftershock area of the Noto Hanto

Earthquake, , .

.

.

Okazaki K., S. Hatake, N. Fujii, T. Sano and B. Ota, ,

Examination of forest evaluation technique by LiDAR,

Silvilaser Proceedings of the International Confer-

ence, .

Ozawa S., H. Yarai, M. Tobita, H. Une and T. Nishimura,

, Crustal deformation associated with the Noto

Hanto Earthquake in in Japan,

, .

Received February ,

Accepted March ,

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