Displaying publications 1 - 20 of 28 in total

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  1. Nepal Disaster: A Public Health Response Needed
    Binns C, Low WY
    Asia Pac J Public Health, 2015 Jul;27(5):484-5.
    PMID: 26116652 DOI: 10.1177/1010539515593015
    Matched MeSH terms: Earthquakes*
  2. Fulltext Effect of having a subsequent child on the mental health of women who lost a child in the 2008 Sichuan earthquake: a cross-sectional study
    Xu Y, Herrman H, Bentley R, Tsutsumi A, Fisher J
    Bull World Health Organ, 2014 May 1;92(5):348-55.
    PMID: 24839324 DOI: 10.2471/BLT.13.124677
    To assess whether having a subsequent child had an effect on the mental health of Chinese mothers who lost a child during an earthquake.
    Matched MeSH terms: Earthquakes
  3. Are older people more vulnerable to long-term impacts of disasters?
    Rafiey H, Momtaz YA, Alipour F, Khankeh H, Ahmadi S, Sabzi Khoshnami M, et al.
    Clin Interv Aging, 2016;11:1791-1795.
    PMID: 27994445
    BACKGROUND: Despite the growing interest in the study of disasters, there is limited research addressing the elderly population that lead to prejudiced beliefs that older adults are more vulnerable to disasters than younger adults. This study aimed to compare positive mental health between elderly and young earthquake survivors.

    METHOD: Data for this study, consisting of 324 earthquake survivors, were obtained from a population-based cross-sectional survey conducted in Iran, 2015. The long-term effect of earthquake was assessed using the Mental Health Continuum-Short Form questionnaire. A one-way multivariate analysis of covariance (MANCOVA) using SPSS (version 22) was used in data analysis.

    RESULTS: Older adults scored significantly a higher level of overall positive mental health (mean [M]=34.31, standard deviation [SD]=10.52) than younger age group (M=27.48, SD=10.56, t=-4.41; P<0.001). Results of MANCOVA revealed a statistically significant difference between older and young adults on the combined positive mental health subscales (F(3,317)=6.95; P<0.001), after controlling for marital status, sex, and employment status.

    CONCLUSION: The present findings showing a higher level of positive mental health among elderly earthquake survivors compared with their younger counterparts in the wake of natural disasters suggest that advancing age per se does not contribute to increasing vulnerability.

    Matched MeSH terms: Earthquakes/statistics & numerical data*
  4. Post tsunami psychological impact among survivors in Aceh and West Sumatra, Indonesia
    Musa R, Draman S, Jeffrey S, Jeffrey I, Abdullah N, Halim NA, et al.
    Compr Psychiatry, 2014 Jan;55 Suppl 1:S13-6.
    PMID: 23318005 DOI: 10.1016/j.comppsych.2012.12.002
    In 2004, the province of Aceh, Indonesia was rocked by tsunami and in September 2009, West Sumatra, Indonesia was hit by an earthquake. The aim of this study was to determine the long-term psychological impact on the residents inhabiting these regions and to identify factors associated with it.
    Matched MeSH terms: Earthquakes
  5. Applying the natural disasters vulnerability evaluation model to the March 2011 north-east Japan earthquake and tsunami
    Ruiz Estrada MA, Yap SF, Park D
    Disasters, 2014 Jul;38 Suppl 2:S206-29.
    PMID: 24905816 DOI: 10.1111/disa.12069
    Natural hazards have a potentially large impact on economic growth, but measuring their economic impact is subject to a great deal of uncertainty. The central objective of this paper is to demonstrate a model--the natural disasters vulnerability evaluation (NDVE) model--that can be used to evaluate the impact of natural hazards on gross national product growth. The model is based on five basic indicators-natural hazards growth rates (αi), the national natural hazards vulnerability rate (ΩT), the natural disaster devastation magnitude rate (Π), the economic desgrowth rate (i.e. shrinkage of the economy) (δ), and the NHV surface. In addition, we apply the NDVE model to the north-east Japan earthquake and tsunami of March 2011 to evaluate its impact on the Japanese economy.
    Matched MeSH terms: Earthquakes/economics*
  6. Assessing radioactive contaminants in Kathmandu soils: measurement and risk analysis
    Upadhyay DR, Koirala G, Shah BR, Tajudin SM, Khanal R
    Environ Monit Assess, 2024 Jan 23;196(2):190.
    PMID: 38261087 DOI: 10.1007/s10661-023-12284-5
    Soil samples from vegetable farmland in densely populated wards of Nepal were analyzed for natural radionuclide levels, employing a NaI(Tl) 3" [Formula: see text] 3" gamma detector. The study aimed to evaluate the causes of radiation risk, attributing it to soil contamination resulting from the rapid urbanization and concretization that followed the earthquake in 2015. The activity concentration of radium-226, thorium-232, and potassium-40 and the ranges observed are 2.080±0.084-33.675±1.356 Bq kg[Formula: see text], 17.222±0.198-119.949±1.379 Bq kg[Formula: see text], and 11.203 ± 0.325-748.828±21.716 Bq kg[Formula: see text], respectively. The average values obtained for hazard indices are as follows: radium equivalent activity (82.779 Bq kg[Formula: see text]), absorbed dose rate (36.394 nGy h[Formula: see text]), annual effective dose equivalent (0.045 mSv yearr[Formula: see text]), gamma index (0.291), external hazard index (0.224), internal hazard index (0.253), excess lifetime cancer risk (0.159), annual gonadal dose equivalent (243.278 mSv year[Formula: see text]), alpha index (0.054), and activity utilization index (0.716). However, in most places, thorium-232 concentration is greater than those of the world average and recommended values. In specific locations such as Ward 4 in Baluwatar, the soil was found to have concentrations of Ra[Formula: see text] and K[Formula: see text] exceeding recommended limits. Despite this localized concern, the overall analysis of hazard indices across the studied areas revealed that most values were within permissible limits. This suggests that, on a broader scale, radiation exposure may not be a significant concern in the investigated regions. Nonetheless, the study recommends regular monitoring in additional locations to ensure a comprehensive and ongoing assessment of radiation levels.
    Matched MeSH terms: Earthquakes*
  7. Infectious diseases following natural disasters: prevention and control measures
    Kouadio IK, Aljunid S, Kamigaki T, Hammad K, Oshitani H
    Expert Rev Anti Infect Ther, 2012 Jan;10(1):95-104.
    PMID: 22149618 DOI: 10.1586/eri.11.155
    Natural disasters may lead to infectious disease outbreaks when they result in substantial population displacement and exacerbate synergic risk factors (change in the environment, in human conditions and in the vulnerability to existing pathogens) for disease transmission. We reviewed risk factors and potential infectious diseases resulting from prolonged secondary effects of major natural disasters that occurred from 2000 to 2011. Natural disasters including floods, tsunamis, earthquakes, tropical cyclones (e.g., hurricanes and typhoons) and tornadoes have been secondarily described with the following infectious diseases including diarrheal diseases, acute respiratory infections, malaria, leptospirosis, measles, dengue fever, viral hepatitis, typhoid fever, meningitis, as well as tetanus and cutaneous mucormycosis. Risk assessment is essential in post-disaster situations and the rapid implementation of control measures through re-establishment and improvement of primary healthcare delivery should be given high priority, especially in the absence of pre-disaster surveillance data.
    Matched MeSH terms: Earthquakes
  8. Fulltext Climate change and its impact on public health – a review of the global environment
    Ambu, Stephen
    International e-Journal of Science, Medicine & Education, 2012;6(10):0-0.
    MyJurnal
    Climate change is a product of human actions. The extreme events such as flash floods, droughts, heat waves, earthquakes, volcano eruptions and tsunamis seen in the world today are the result of indiscriminate human intrusion into the environment. Vulnerable countries and populations are the most affected by these climatic events. This places a burden on the resources of these countries. The Kyoto Protocol is a milestone in environmental management and the impetus created by it must be maintained by carrying out the much needed research into appropriate mitigating measures that will alleviate the climate
    change impact globally. A paradigm shift is needed in addressing the associated risks on human health to assess socioeconomic determinants and the related impacts on disease burden. Some wealthy nations emphasize economic benefits and downplay sustainability goals, health and equality. However the rising cost of energy is beginning to influence their outlook towards this issue. The implications on economics, human health and wellbeing are implicit. In order to strike a balance between disadvantaged and privileged nations, many
    international agencies are spearheading various research agenda to improve adaptation programmes on effects of changing climatic conditions on health. Malaysia too has such programmes initiated under its 5-year development plans.
    Matched MeSH terms: Earthquakes
  9. Fulltext An alternative efficient technique for thin tooth sectioning
    Babar, Muneer Gohar, Gonzalez, Ma Angela
    International e-Journal of Science, Medicine & Education, 2011;5(1):27-30.
    MyJurnal
    Background: The importance of tooth sectioning is realized in disasters such as earthquake, airplane crash investigation, terror, micro leakage studies, age estimation etc. The objective of this study was to develop a simple method to make thin sections (approximately 100 mm) from freshly extracted teeth.

    Methods: One hundred and twenty human premolars recently extracted for orthodontic purpose were used for this study. The teeth were stored in 0.5% chorlaramine for 2 weeks and were not allowed to dry at any stage of the experiment. The teeth were thoroughly washed in distilled water teeth and then were sectioned buccolingually from crown to the root portion.

    Results: A detailed embedding-cutting-mounting procedure is described. The prepared thin ground sections were then examined under a Polarised light microscope for the enamel and the dentine, as well as the caries lesions can clearly be distinguished.

    Conclusion: This is an effective and efficient method for preparation of ground sections in which the hard tissue details are preserved.
    Matched MeSH terms: Earthquakes
  10. Fulltext Disaster hypertension and cardiovascular events in disaster and COVID-19 pandemic
    Narita K, Hoshide S, Tsoi K, Siddique S, Shin J, Chia YC, et al.
    J Clin Hypertens (Greenwich), 2021 03;23(3):575-583.
    PMID: 33527663 DOI: 10.1111/jch.14192
    The incidence of large disasters has been increasing worldwide. This has led to a growing interest in disaster medicine. In this review, we report current evidence related to disasters and coronavirus disease-2019 (COVID-19) pandemic, such as cardiovascular diseases during disasters, management of disaster hypertension, and cardiovascular diseases associated with COVID-19. This review summarizes the time course and mechanisms of disaster-related diseases. It also discusses the use of information and communication technology (ICT) as a cardiovascular risk management strategy to prevent cardiovascular events. During the 2011 Great East Japan Earthquake, we used the "Disaster Cardiovascular Prevention" system that was employed for blood pressure (BP) monitoring and risk management using ICT. We introduced an ICT-based BP monitoring device at evacuation centers and shared patients' BP values in the database to support BP management by remote monitoring, which led to improved BP control. Effective use of telemedicine using ICT is important for risk management of cardiovascular diseases during disasters and pandemics in the future.
    Matched MeSH terms: Earthquakes
  11. Fulltext Patterns of health ailments and other health problems among children at a relief camp, Aceh, Indonesia; a two months post tsunami study
    Adlina, S., Soe, Soe Aye, Narimah, A.H.H., Nuraliza, A.S.
    Malaysian Journal of Public Health Medicine, 2005;5(1):31-37.
    MyJurnal
    On December 26, 2004, an earthquake triggered a devastating tsunami that caused death and destruction in twelve countries including India, Indonesia, Malaysia, Maldives, Seychelles, Somalia, Sri Lanka and Thailand. One of the authors was a volunteer with FELDA WAJA AMAN MALAYSIA medical relief team that served the Aceh victims from 16th February to 24th February 2005 (8 weeks post tsunami). A study to determine the pattern of health ailments was conducted among children aged 18 years and below based at Seuneubok Camp, 30 km from Banda Aceh. All respondents were from Pulau Aceh and the total number of children seen and examined was 60. About 18% had lost their fathers, 10 % had lost their mothers and 27% had lost one or more of their siblings. 77% suffered some form of health ailments. The common health ailments were diarrhea (61%), respiratory complaints (59%) and fever (20%). About 38 % of preschoolers had loss of appetite and 28% had sleep disturbances. About 35% of the elementary school children suffered from sleep disturbances, 29% of the young adolescents suffered from headaches and 24% had sleep disturbances. Nearly a quarter (24%) of all the children felt fearful and anxious about the disaster. Nevertheless, 56% of the respondents wanted to return back to Pulau Aceh, although 14 % did not want to go back. Interestingly, 73% of the children voiced their gratitude to God for having been saved from death.
    Matched MeSH terms: Earthquakes
  12. Fulltext Medical relief to 2008 Sichuan earthquake, China
    Chew BH
    Malays Fam Physician, 2008;3(3):170-172.
    MyJurnal
    The massive 2008 Sichuan earthquake brought unprecedented international humanitarian aid to China. The monstrous damages and casualties aroused all human's sympathy. I took the opportunity to join a Malaysian voluntary medical relief team to Sichuan in June 2008. This essay recounts the immediate events post-earthquake and reports on my experience during the mission.
    Matched MeSH terms: Earthquakes
  13. Fulltext Investigation of Fibers Reinforced Engineered Cementitious Composites Properties Using Quartz Powder
    Liew MS, Aswin M, Danyaro KU, Mohammed BS, Al-Yacouby AM
    Materials (Basel), 2020 May 26;13(11).
    PMID: 32466366 DOI: 10.3390/ma13112428
    In relation to the use of retrofit materials on damaged constructions, application on earthquake-resistant buildings, and for the strengthening and rehabilitation on weakened regions, there is a need for a more superior material than concrete. Application sites include beam-column joints, corbels, link-slabs, deep beams, support regions and dapped-end areas. Fiber reinforced engineered cementitious composites (FR-ECC) can address this issue, because FR-ECC is one of the composite materials that has high strength, ductility and durability. In order to develop FR-ECC, this study was done to investigate the effect of adding quartz powder on the compressive strength capacity and properties of FR-ECC through the use of polyvinyl alcohol (PVA) and steel fibers. The volume fraction of fiber was set to 0%-2%. To support the friendly environment, FR-ECC uses by-product materials such as fly ash and silica fume, with a cement content less than 600 kg/m3. In terms of the experimental investigation on FR-ECC, this work conducted the fresh property tests showing that PVA fibers have quite an influence on ECC workability, due to their hydrophilic behavior. By adjusting the superplasticizer (SP) content, the consistency and high workability of the ECC mixes have been achieved and maintained. The test results indicated that the PVA and steel fibers-based ECC mixes can be classified as self-compacting composites and high early compressive strength composites. Significantly, addition of quartz powder into the ECC mixes increased the compressive strength ratio of the ECC samples up to 1.0747. Furthermore, the steel fiber-based ECC samples exhibited greater compressive strength than the PVA fibers-based ECC samples with the strength ratio of 1.1760. Due to effect of the pozzolanic reaction, the fibers dispersion and orientation in the fresh ECC mixes, so that the cementitious matrices provided the high strength on the FR-ECC samples. During the compression loading, the bulging effect always occurred before the failures of the fibers-based ECC samples. No spalling occurred at the time of rupture and the collapse occurred slowly. Thus, FR-ECC has provided unique characteristics, which will reduce the high cost of maintenance.
    Matched MeSH terms: Earthquakes
  14. Fulltext Mechanics Model for Simulating RC Hinges under Reversed Cyclic Loading
    Shukri AA, Visintin P, Oehlers DJ, Jumaat MZ
    Materials (Basel), 2016 Apr 22;9(4).
    PMID: 28773430 DOI: 10.3390/ma9040305
    Describing the moment rotation (M/θ) behavior of reinforced concrete (RC) hinges is essential in predicting the behavior of RC structures under severe loadings, such as under cyclic earthquake motions and blast loading. The behavior of RC hinges is defined by localized slip or partial interaction (PI) behaviors in both the tension and compression region. In the tension region, slip between the reinforcement and the concrete defines crack spacing, crack opening and closing, and tension stiffening. While in the compression region, slip along concrete to concrete interfaces defines the formation and failure of concrete softening wedges. Being strain-based, commonly-applied analysis techniques, such as the moment curvature approach, cannot directly simulate these PI behaviors because they are localized and displacement based. Therefore, strain-based approaches must resort to empirical factors to define behaviors, such as tension stiffening and concrete softening hinge lengths. In this paper, a displacement-based segmental moment rotation approach, which directly simulates the partial interaction behaviors in both compression and tension, is developed for predicting the M/θ response of an RC beam hinge under cyclic loading. Significantly, in order to develop the segmental approach, a partial interaction model to predict the tension stiffening load slip relationship between the reinforcement and the concrete is developed.
    Matched MeSH terms: Earthquakes
  15. Fulltext Earthquake and tsunami research in USM: the role of disaster research nexus
    Hock, Lye Koh, Su, Yean Teh, Taksiah A. Majid, Tze, Liang Lau, Fauziah Ahmad
    Pertanika Journal of Science & Technology, 2012;20(1):151-163.
    MyJurnal
    The 2004 Banda Aceh earthquake and ensuing Andaman mega tsunami that killed a quarter million people worldwide is a wake-up call to many. Active research was initiated in Universiti Sains Malaysia (USM) immediately after the infamous event with the aims to help develop human capacity and resources, and to mitigate any future earthquake and tsunami. The Disaster Research Nexus (DRN) was formed recently within the School of Civil Engineering, USM, to facilitate active collaborative research on earthquakes and tsunamis, as well as on other natural disasters, such as landslides. This paper begins with an introduction to DRN. This is followed by a description of some research achievements undertaken by DRN staff. A concise exposition on the tsunami simulation model TUNA developed by the authors and its application to the 2004 Andaman tsunami are given to illustrate the capability of TUNA. The role of mangrove in reducing the impact of tsunami is then modelled. Tsunami may inundate coastal plain with large quantity of saline water, changing the salinity regimes in the soil and inducing vegetative succession changes. A model called MANHAM was developed to simulate the salinity changes and its associated vegetative evolution to assist in the rehabilitation of vegetation destroyed by tsunami. Meanwhile, an earthquake risk analysis for the Upper Pandas Dam in Sabah is then presented, and this is followed by a model estimation of tsunami forces on the coastal structures. The main objective of this paper is to reach out to research scientists and onsite risk reduction professionals to collaborate towards the development of a vibrant research culture to face future natural disasters such as earthquakes and tsunamis. It is hoped that DRN will move forward to further enhance active collaborations with other research and operational institutions worldwide towards developing earthquake and tsunami resilient communities.
    Matched MeSH terms: Earthquakes
  16. Fulltext Site specific ground response spectra of Bakun
    Zainap Lamat, Yuhani Jamian, Mohd Agus Adib Eskandar
    Pertanika Journal of Science & Technology, 2017;25(105):23-28.
    MyJurnal
    Sarawak has experienced several earthquakes of local origin and was also affected by long-distance earthquake that originated from Southern Philippine and the Straits of Macassar, Sulu Sea and Celebes Sea. The objectives for this study were to conduct site specific ground response analysis and develop design response spectra for Bakun area by using 1-D equivalent linear ground response analysis. The site characterisation was carried out utilising the soil profile and soil property data of the selected site. Local surface fault ruptures were investigated for possible hazards due to intraplate earthquakes. Earthquake ground motion records were selected based on characteristics of the controlling earthquakes for an area and the maximum magnitude faults were considered for risk assessment. The site-specific response spectra represent the predicted surface ground motions that reflect the levels of strong motion amplitude and frequency content at a particular site. The site-specific ground response analysis for Bakun site found that the peak ground acceleration at bedrock was amplified from 0.16 g to 0.33 g at the ground surface.
    Matched MeSH terms: Earthquakes
  17. Fulltext Seismic isolation retrofitting solution for an existing steel cable-stayed bridge
    Javanmardi A, Ibrahim Z, Ghaedi K, Khan NB, Benisi Ghadim H
    PLoS One, 2018;13(7):e0200482.
    PMID: 30059506 DOI: 10.1371/journal.pone.0200482
    This paper investigated the seismic retrofitting of an existing cable-stayed bridge through the use of a seismic isolation system. The bridge is situated in a high seismic zone. During the Saguenay earthquake 1988, one of the anchorage plates of the bridge supports failed. Herein, several configurations of seismic isolation system were considered to identify an appropriate solution for the seismic retrofitting of the bridge in both the longitudinal and transverse directions. A three-dimensional model of the bridge was created, and its seismic behavior studied through nonlinear dynamic time-history analysis. The comparative performance study among the five retrofitting configurations showed that the partial seismic isolation of the bridge led to an enhancement of the seismic response of the bridge in one direction only. However, the overall seismic response of the cable-stayed bridge substantially improved in the longitudinal and transverse directions in cases where the isolation systems were utilized between the supports and the deck-tower connection of the bridge.
    Matched MeSH terms: Earthquakes*
  18. Real-Time Impact Analysis and Response using a New Disaster Metrics: 2018 Sulawesi (Indonesia) Earthquake and Tsunami
    Yew Y, Arcos González P, Castro Delgado R
    Prehosp Disaster Med, 2020 Feb;35(1):76-82.
    PMID: 31928556 DOI: 10.1017/S1049023X19005247
    INTRODUCTION: The Richter Scale measures the magnitude of the seismic activity for an earthquake; however, it does not quantify the humanitarian need at the point of impact. This poses a challenge for humanitarian stakeholders in decision and policy making, especially in risk reduction, response, recovery, and reconstruction. The new disaster metrics tool titled "The YEW Disaster Severity Index" (DSI) was developed and presented at the 2017 World Congress of Disaster and Emergency Medicine, May 2017, Toronto, Canada. It uses a median score of three for vulnerability and exposure indicators, a median score percentage of 100%, and medium YEW DSI scoring of four to five as baseline, indicating the ability to cope within local capacity. Therefore, scoring more than baseline coping capacity indicates that external assistance is needed. This special real-time report was presented at the 2nd National Pre-Hospital Care Conference and Championship, October 2018, Malaysia.

    REPORT: The aim of this analysis is to present the real-time humanitarian impact and response to the 2018 earthquake and tsunami at Donggala and Palu, Sulawesi in Indonesia using the new disaster metrics YEW DSI. Based on the earthquake (measuring 7.7 on the Richter Scale) and tsunami at Donggala, the humanitarian impact calculated on September 29, 2018 scored 7.4 High in the YEW DSI with 11 of the total 17 indicators scoring more than the baseline coping capacity. The same YEW DSI score of 7.4 was scored on the earthquake and tsunami at Palu, with 13 of the total 17 indicators scoring more than baseline ability to cope within local capacity. Impact analysis reports were sent to relevant authorities on September 30, 2018.

    DISCUSSION & CONCLUSION: A State of Emergency was declared for a national response, which indicated an inability to cope within the local capacity, shown by the YEW DSI. The strong correlation between the earthquake magnitude, intensities, and the humanitarian impact at Donggala and Palu reported could be added into the science of knowledge in prehospital care and disaster medicine research and practice. As a conclusion, the real-time disaster response was found to be almost an exact fit with the YEW DSI indicators, demonstrating the inability to cope within the local capacity.

    Matched MeSH terms: Earthquakes*
  19. Analyzing seismogram of the earthquake C051099C, PNGon UGM, PMG and CHTO observation stations to understand the S and P wave velocity Structure
    Santosa BJ
    Sains Malaysiana, 2009;38.
    This research, compares the observed seismogram of the PNG earthquake, C051099C with its synthetics in UGM, Wanagama, Indonesia, PMG, Port Moresby, PNG and CHTO, Chiang May, Thailand. The synthetic seismogram is calculated using preliminary earth model, which are the IASPEI91 and the anisotropic version of PREM. The seismogram comparison is conducted after imposing a low pass filter whose corner frequency is fixed at 20 mHz. We have found a real discrepancy on the travel time and waveform of some wave phases, namely P, S and Rayleigh and Love surface waves, by seismogram comparison in time domain. To correct the discrepancies, we need to adjust the earth structures, which include the depth of the Moho reflector, the velocity gradient of bh, and the propagation velocity of the P and S waves. The correction has been conducted in the earth layering system from the upper mantle down to the CMB, so that the excellent seismogram fitting was obtained for nearly all phases of the targeted waves. The used wave length for analysing is about 150 km. It turns out that the waveform of the body and surface waves is sensitive to the change of velocity structure. The analysis of repetitive ScS depth phases at closer distance stations gives better opportunity to investigate the S velocity structure near the CMB, something not used by other seismologists.
    Matched MeSH terms: Earthquakes
  20. Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake
    Zong-ji Yang, Taro Uchimura, Jian-ping Qiao, Jian-ping Qiao
    Sains Malaysiana, 2017;46:2029-2034.
    Prevention and mitigation of rainfall induced geological hazards after the Ms=8 Wenchuan earthquake on May 12th, 2008 were significant for rebuild of earthquake hit regions. After the Wenchuan earthquake, there were tens of thousands of fractured slopes which were broken and loosened by the ground shaking, they were very susceptible to heavy rainfall and change forms into potential debris flows. In order to carry out this disaster reduction and prediction effectively in Longmenshan region, careful real-time monitoring and pre-warning of mountain hazards in both regional and site-specific scales is reasonable as alternatives in Wenchuan earthquake regions. For pre-warning the failure of fractured slopes induced by rainfall, the threshold value or the critical value of the precipitation of hazards should be proposed. However, the identification of critical criterion and parameters to pre-warning is the most difficult issue in mountainous hazards monitoring and pre-warning system especially in the elusive and massive fractured slopes widespread in Wenchuan earthquake regions. In this study, a natural coseismic fractured landslide in the Taziping village, Hongkou County, Dujianyan City, was selected to conduct the field experimental test, in order to identify the threshold parameters and critical criterion of the fractured slopes of Taziping. After the field experimental test, the correlation of rainfall intensity, rainfall duration and accumulative rainfall was investigated. The field experimental test was capable of identifying the threshold factors for failure of rainfall-induced fractured slopes after the giant earthquake.
    Matched MeSH terms: Earthquakes
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