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Kondo I.,Engineering and Risk Services Corporation | Wakabayashi R.,Engineering and Risk Services Corporation | Mizukoshi K.,Engineering and Risk Services Corporation | Kusaka A.,Kobori Research Complex Inc. | And 2 more authors.
Journal of Disaster Research | Year: 2013

This article discusses an earthquake risk evaluation method supporting earthquake disaster-prevention activities practiced by local residents in local communities. The evaluation method is first outlined and verified using strong motion observation data and damage data from recent earthquakes, including the 2011 off the Pacific coast of Tohoku Earthquake. The features of the method are discussed and future challenges presented from the view of using earthquake risk evaluation in local communities.


Masuzawa Y.,Masuzawa Engineering Research and Consulting | Hisada Y.,Kogakuin University | Murakami M.,Kogakuin University | Shindo J.,Sompo Japan Nipponkoa Risk Management | And 5 more authors.
Journal of Disaster Research | Year: 2014

This paper discusses an experiential training and education program designed to improve the response literacy in the event of a large-scale earthquake in the Shinjuku station area in Tokyo, which is a central business district representative of Japan. The features of the Shinjuku station area are described, and the activities of the Shinjuku Station Area Disaster Response Measure Committee, made up of businesses and other concerns located in the vicinity of Shinjuku station, as well as the education and training program implemented by the committee to train personnel are introduced. An overview is given of the seminars and workshops given as part of the education and training program in fiscal 2013, targeted at employees of businesses in charge of disaster response. The report then describes the Comprehensive Disaster Preparedness Drill, which was conducted for the purpose of enabling the participants of the seminars and workshops to practice the skills and techniques for disaster response they had acquired, and conducting a comprehensive exercise on disaster response activities within businesses or the area. Finally, the results of a questionnaire survey conducted on the drill participants are discussed.


Measures C.I.,University of Hawaii at Manoa | Sato T.,University of Hawaii at Manoa | Sato T.,Engineering and Risk Services Corporation | Vink S.,University of Hawaii at Manoa | And 3 more authors.
Marine Chemistry | Year: 2010

The partial solubility of mineral aerosols collected on the windward side of Oahu, Hawaii, was determined by suspending aerosol laden filters in samples of filtered surface seawater and determining the amount of dissolved Al released over a period of four days. The results showed that 80% of the dissolvable Al was released rapidly, within the first 24 h, and that a further 20% was released slowly over the next three days. The mass-based fractional solubility varied from 0.087-14.3% with a mean value of 4.6%. The total dissolvable Al (1st plus 2nd mode) was well correlated with the total charge of nitrate and non seasalt sulphate (nss) (R2 = 0.78, R2 = 0.84) on replicate filters. These results imply that the abundance of atmospheric acids (derived from nitrate and sulphur species) in the atmosphere appears to be one of the major factors controlling the fractional solubility of atmospheric dust in this region. In addition, the results indicate that as this field of study develops there is an urgent need to develop a consensus on the matrix used for defining the solubility of dusts and the development of protocols that eliminate artefacts associated with the determining solubilities that will permit comparison of data between different research groups working in different regions. © 2009 Elsevier B.V. All rights reserved.


Nagata S.,Kajima Technical Research Institute | Yamamoto K.,Engineering and Risk Services Corporation | Ishida H.,Kajima Technical Research Institute | Kusaka A.,Kajima Technical Research Institute
Procedia Engineering | Year: 2011

Sewerage system is one of the most important lifeline systems for an urban society. Functional suspension of sewerage system by seismic damages influences the great impact to the citizen's daily life, business continuity of many companies, public health and so on. So, it is very important that the countermeasure against the seismic damages to decrease the effect of the functional suspension of sewerage system is made in advance. And a prospect of the total amount of seismic damages is important to make the restoration plan before earthquake occurrence, too. In this point of view, we estimate the fragility curve function, which is the maximum ground velocity vs. the damage ratio which is proportion of the total length of damaged pipes to the total length of sewerage pipes, to prospect the amount of damages.


Mizukoshi K.,Engineering and Risk Services Corporation | Nakajima Y.,Engineering and Risk Services Corporation | Masuzawa Y.,Masuzawa Engineering Research and Consulting | Tanaka S.,Fuji Tokoha University | Shigekawa K.,Fuji Tokoha University
Journal of Disaster Research | Year: 2012

This paper sorts out the problems in applying the current inspection methods for issuing disaster victim certificates to examine the damages on non-wooden apartment buildings that are densely constructed in the Tokyo Metropolitan area, should a major earthquake take place in this area. First, a hearing survey was conducted on diverse business organizations especially to examine the availability of experts on building for damage inspection. Based on this examination, the new inspection scheme is proposed, adopting a selfassessment method in the secondary inspection. And this new scheme is shown to be effective in averting prolongation in time for damage inspection and active usage of experts on building toward this end. In order to evaluate the viability of the new scheme for inspection, a workshop was held with participants from the government offices and various business organizations to recognize the current situation and share this information so as to focus on the tasks to be undertaken in realizing this new scheme.

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