scholarly journals Application of the Modified PLUM Method to a Dense Seismic Intensity Network of a Local Government in Japan: A Case Study on Tottori Prefecture

2021 ◽  
Vol 9 ◽  
Author(s):  
Takao Kagawa

An application of the PLUM (Propagation of Local Undamped Motion) method to real-time seismic intensity distribution from a dense seismic intensity network maintained by a local government in Japan is demonstrated. The JMA (Japan Meteorological Agency) has employed the PLUM method from March 2018 as a supplement to the traditional EEW (Earthquake Early Warning) which requires hypocenter determination. A dense observation network is desirable for upgrading accuracy and immediateness of EEW including the PLUM method. Seismic intensity meters in Tottori Prefecture, Japan, are suitable for the purpose because they have been improved to broadcast packets with peak ground acceleration and JMA seismic intensity at every 1 s. Also, 34 seismic intensity meters are installed in the target area while only six observation sites are used for the EEW by the JMA. The packet data are received at Tottori University, and the modified PLUM method considers wave propagation with damping from not only the observation points but also all evaluating grid points at a 1 km mesh. Additionally, P-wave amplitudes in preliminary tremors are also introduced to estimate seismic intensities from an empirical relationship. Applying the methodology to past earthquake data, more detailed and rapid evaluations of seismic intensity distribution are achieved. We expect the system will be utilized for earthquake disaster mitigation measures of local governments.

2009 ◽  
Vol 4 (4) ◽  
pp. 579-587 ◽  
Author(s):  
Katsuhisa Kanda ◽  
◽  
Tadashi Nasu ◽  
Masamitsu Miyamura

Real-time hazard mitigation we have developed using earthquake early warning (EEW) (1) enhances seismic intensity estimation accuracy and (2) extends the interval between when an EEW is issued and when strong tremors arrive. We accomplished the first point (enhancing seismic intensity estimation) by reducing estimation error to less than that commonly used based on an attenuation relationship and soil amplification factor by considering source-location and wave propagation path differences based on site-specific empiricism. We accomplished the second point (shortening the time between warnings and when tremors arrive) using a high-speed, reliable communication network for receiving EEW information from the Japan Meteorological Agency (JMA) and quickly transmitting warning signals to users. In areas close to quake epicenters, however, warnings may not arrive before the arrival of strong ground motions. The on-site warning system we developed uses P-wave pickup sensors that detect P-wave arrival at a site and predict seismic intensity of subsequent S-waves. We confirmed the on-site warning prototype’s feasibility based on numerical simulation and observation. We also developed an integration server for combining on-site warnings with JMA information to be applied to earthquakes over a wide range of distances. We installed a practical prototype at a construction site near the 2008 Iwate-Miyagi Inland Earthquake epicenter to measure its aftershocks because JMA EEW information was too late to use against the main shock. We obtained good aftershock results, confirming the prototype’s applicability and accuracy. Integration server combination logic was developed for manufacturing sites requiring highly robust, reliable control.


Author(s):  
Rahmadani Yusran ◽  
Zikri Alhadi ◽  
Zahari Basri ◽  
Rika Sabri

This study aims to analyze the implementation of flood disaster mitigation strategies in Nagari Taram, Limapuluh Kota Regency. This study uses a qualitative method with a descriptive approach. They were collecting data using interviews, observation, and documentation study. The research informants were several heads of fields, section heads in the Regional Disaster Management Agency of Fifty Cities Distr2ict. The results showed that the implementation of disaster mitigation by the local government had been carried out in the form of the normalization of Batang Sinamar, brojong development along the Batang Sinamar watershed. However, the mitigation that has been implemented has not succeeded in reducing the risk and impact of flooding on the community in Nagari Taram. This study argues that local governments need to pay attention to regional characteristics in implementing flood disaster mitigation before carrying out river normalization because the area's characteristics affect the carrying capacity and carrying capacity of the river.


2010 ◽  
Vol 5 (1) ◽  
pp. 3-4
Author(s):  
Haruo Hayashi ◽  
Go Urakawa

This special issue introduces 12 papers on a variety of best practices for effective emergency management using geospatial database and geographic information system (GIS). The first seven papers are grouped under GIS in action, show how GIS is used for different disaster reduction services. In response to the 2007 Niigata-ken Chuetsu-oki Earthquake, GIS maps have been a part of Niigata PrefectureGovernment Emergency Operation Center work to aid in decisionmaking by providing Common Operational Picture (COP) as detailed by Tamura et al. A victim database was used as the key for integrated victim support in Kashiwazaki City in long-term recovery as detailed by Inoguchi et al. The success of GIS-based postdisaster operations vastly impacts on local governments in Wajima City, hit by the 2007 Noto Hanto Earthquake, where the use of GIS continued and expanded as an effective tool for building local government agency response capacity as detailed by Ura et al. In Kashiwazaki, the failure to apply municipal integrated GIS in postdisaster operations changed GIS policy to a less expensive service-oriented GIS readily available for local government agency use as detailed by Honma et al. A nationwide GIS map archive for researchers contains maps created at different disaster response stages as detailed by Nawa et al. Visualization of disaster impact using GIS is a powerful tool for disaster mitigation and preparedness, with impact by a worst-case-scenario magnitude 7.3 Tokyo Metropolitan earthquake as detailed by Suzuki et al. Design principles for visualization are reviewed by Urabe et al. In Japan, damage certification is used as the basis for deciding public and private support eligibility for quake victims, making it imperative for local governments to issue certification based on housing damage assessment results as soon and as fairly as possible. Based on practices in Kashiwazaki City following the 2007 Niigataken Chuetsu-oki earthquake, damage to 64,000 household footprints was assessed within one month as detailed in the last five papers. Two papers cover GIS-based data acquisition in housing damage assessment - PDA-assisted real-time input as detailed by Tonosaki et al., and OCRassisted paper result conversion as detailed by Higashida et al. In addition to housing damage assessment data, preexisting residential and housing databases should be integrated. Basic principles for creating this new database using GeoWrap are detailed by Yoshitomi et al. and implemented for Kashiwazaki as detailed by Matsuoka et al. In anticipating future disasters, a proposal to integrate local government operations both daily routine and emergency management was made by Urakawa et al. We appreciate the support of the Special Project for Governance in Ubiquitous Society (2007-2009) by the Japan Science and Technology Agency (JST) and the Special Project for Metropolitan Earthquake Disaster Mitigation in Tokyo Metropolitan Area (2007-2011) by the Ministry of Education, Culture, Sports, Science, and Technology of Japan (MEXT). Lastly, we would like to appreciate all the authors for their wonderful contribution as well as all the blind reviewers for their dedication to make this issue more valuable.


2020 ◽  
Vol 18 (4) ◽  
pp. 341-347
Author(s):  
Katharina Renken, PhD ◽  
Andrea M. Jackman, PhD ◽  
Mario G. Beruvides, PhD, PE

Since the Stafford Act of 1988, the process of obtaining a formal Major Disaster Declaration has been codified for national implementation, with tasks defined at the smallest levels of local government up to the President. The Disaster Mitigation Act of 2000 (DMA 2000) placed additional requirements on local government to plan for mitigation activities within their jurisdictions. The goal of DMA 2000 was to not only implement more mitigative actions at the local level, but also initiate a process by which local governments could set up ongoing conversations and collaborative efforts with neighboring jurisdictions to ensure continuous, proactive measures were taken against the impacts of disasters. Based on the increased attention paid to mitigation and planning activities, a reasonable expectation would be to see a decline in the number of major disaster declarations since DMA 2000. However, simple correlation analysis shows that since DMA 2000, the number of major disaster declarations continues to increase. This article is intended as a preliminary study to encourage more detailed analysis in the future of the impacts of federal policy on local-level disaster prevention.


2012 ◽  
Vol 28 (1) ◽  
pp. 277-299 ◽  
Author(s):  
Navaratnarajah Sathiparan ◽  
Paola Mayorca ◽  
Kimiro Meguro

This paper introduces a technically feasible and economically affordable retrofitting option for seismically vulnerable masonry structures in developing countries using polypropylene bands (PP-bands). The results of the basic material tests and shake table tests on building models show that the PP-band retrofitting technique can enhance the safety of both existing and new masonry buildings, even during severe ground motions, for instance an earthquake with a Japan Meteorological Agency (JMA) seismic intensity of 7. Therefore, the proposed method is an optimum solution for promoting safer building construction in developing countries and can contribute to earthquake disaster mitigation in the future.


2020 ◽  
Vol 15 (2) ◽  
Author(s):  
Antung Deddy Radiansyah

Gaps in biodiversity conservation management within the Conservation Area that are the responsibility of the central government and outside the Conservation Areas or as the Essential Ecosystems Area (EEA) which are the authority of the Regional Government, have caused various spatial conflicts between wildlife /wild plants and land management activities. Several obstacles faced by the Local Government to conduct its authority to manage (EEA), caused the number and area of EEA determined by the Local Government to be still low. At present only 703,000 ha are determined from the 67 million ha indicated by EEA. This study aims to overview biodiversity conservation policies by local governments and company perceptions in implementing conservation policies and formulate strategies for optimizing the role of Local Governments. From the results of this study, there has not been found any legal umbrella for the implementation of Law number 23/ 2014 related to the conservation of important ecosystems in the regions. This regulatory vacuum leaves the local government in a dilemma for continuing various conservation programs. By using a SWOT to the internal strategic environment and external stratetegic environment of the Environment and Forestry Service, Bengkulu Province , as well as using an analysis of company perceptions of the conservation policies regulatary , this study has been formulated a “survival strategy” through collaboration between the Central Government, Local Governments and the Private Sector to optimize the role of Local Government’s to establish EEA in the regions.Keywords: Management gaps, Essential Ecosystems Area (EEA), Conservation Areas, SWOT analysis and perception analysis


2018 ◽  
Vol 9 (5) ◽  
pp. 388-407
Author(s):  
Patricio Gigli ◽  
◽  
Donatela Orsi ◽  
Marisel Martín Aramburú ◽  
◽  
...  

This paper aims at describing the experience of the Cities for Entrepreneurs Program (Ciudades para Emprender or CPE) of the National Directorate of Community and Human Capital (which belongs to the SEPYME), National Ministry of Production. This paper starts from the premise that entrepreneurship takes place at the most micro level of the offer and, therefore, is a concept associated with the characteristics of the environment closest to that offer: the local territory. However, there is little history in the country of public policies relating the issue of entrepreneurship with the local management. That is why we take as a starting point the conceptualization of the chosen framework: local governments and the development issue, seen from the perspective of entrepreneurships. Moreover, an overview is given on the structural characteristics of municipalities in Argentina. In addition, some international experiences and attempts to promote entrepreneurship at a national level are analyzed. Finally, the Cities for Entrepreneurs Program (CPE) is outlined, based on a summary of the diagnoses of the Entrepreneurial Ecosystems of the selected cities and the tools used and their execution status at the time of publication of this paper.


e-Finanse ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 12-21
Author(s):  
Beata Zofia Filipiak ◽  
Marek Dylewski

AbstractThe purpose of the article is analysis of participatory budgets as a tool for shaping decisions of local communities on the use of public funds. The authors ask the question of whether the current practice of using the participatory budget is actually a growing trend in local government finances or, after the initial euphoria resulting from participation, society ceased to notice the real possibilities of influencing the directions of public expenditures as an opportunity to legislate public policies implemented. It is expected that the conducted research will allow us to evaluate the participatory budget and indicate whether this tool practically acts as a stimulus for changes in the scope of tasks under public policies. The authors analyzed and evaluated the announced competitions for projects as part of the procedure for elaborating participatory budgeting for selected LGUs. Then, they carried out an in-depth analysis of the data used to assess real social participation in the process of establishing social policies.


e-Finanse ◽  
2019 ◽  
Vol 15 (3) ◽  
pp. 67-75
Author(s):  
Adam Mateusz Suchecki

AbstractFollowing the completion of the process of decentralisation of public administration in Poland in 2003, a number of tasks implemented previously by the state authorities were transferred to the local level. One of the most significant changes to the financing and management methods of the local authorities was the transfer of tasks related to culture and national heritage to the set of tasks implemented by local governments. As a result of the decentralisation process, the local government units in Poland were given significant autonomy in determining the purposes of their budgetary expenditures on culture. At the same time, they were obliged to cover these expenses from their own revenues.This paper focuses on the analysis of expenditures on culture covered by the voivodship budgets, taking into consideration the structure of cultural institutions by their types, between 2003-2015. The location quotient (LQ) was applied to two selected years (2006 and 2015) to illustrate the diversity of expenditures on culture in individual voivodships.


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