scholarly journals Outline of the 2011 off the Pacific coast of Tohoku Earthquake (M w 9.0) —Earthquake Early Warning and observed seismic intensity—

2011 ◽  
Vol 63 (7) ◽  
pp. 547-551 ◽  
Author(s):  
Mitsuyuki Hoshiba ◽  
Kazuhiro Iwakiri ◽  
Naoki Hayashimoto ◽  
Toshihiro Shimoyama ◽  
Kazuyuki Hirano ◽  
...  
Keyword(s):  
Early Warning ◽  
Pacific Coast ◽  
Tohoku Earthquake ◽  
Seismic Intensity ◽  
Earthquake Early Warning ◽  
The Pacific

Development of Damage Functions on Road Infrastructures Subjected to Extreme Ground Excitations by Analyzing Damage in the 2011 off the Pacific Coast of Tohoku Earthquake

2014 ◽  
Vol 9 (2) ◽  
pp. 121-127 ◽  
Author(s):  
Gaku Shoji ◽  
◽  
Tomoharu Nakamura ◽  
Keyword(s):  
Spatial Distribution ◽  
Pacific Coast ◽  
Failure Modes ◽  
Tohoku Earthquake ◽  
Seismic Intensity ◽  
Road Surface ◽  
Damage Functions ◽  
The Pacific ◽  
Damage Data ◽  
The Relationship

Road infrastructure damage due to extreme ground excitations during theMarch 2011 Tohoku earthquake was assessed and 161 items of damage road structure data were classified into three types of failure modes: road surface and embankment damage items, road surface crack items and road subsidence items. We then compared a damage ratio, which is defined by the number of damage points divided by total road length, to the estimated spatial distribution of JMA instrumental seismic intensity. The maximum damage ratio for the 161 damage data items is 0.0290 points/km compared to a JMA instrumental seismic intensity of 5.8. Last, we developed damage functions for road infrastructures subjected to extreme ground excitations, which describe the relationship between the damage ratios and seismic intensity.

scholarly journals Seawater-leaching Testing for Arsenic and Heavy Metals in Tsunami Deposits Produced by the 2011 off the Pacific Coast of Tohoku Earthquake, Northeastern Japan

2014 ◽  
Vol 123 (6) ◽  
pp. 835-853 ◽  
Author(s):  
Takahiro WATANABE ◽  
Noriyoshi TSUCHIYA ◽  
Shin-ichi YAMASAKI ◽  
Ryoichi YAMADA ◽  
Nobuo HIRANO ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Pacific Coast ◽  
Tohoku Earthquake ◽  
Tsunami Deposits ◽  
Northeastern Japan ◽  
The Pacific
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