• Title/Summary/Keyword: 지진해일

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A Study on the Evacuation Behavior of Students Due to Tsunami Occurrence in Coastal Areas: Focusing on the Great East Japan Earthquake (연안지역 지진해일 발생에 따른 학생들의 피난행동에 관한 연구 -동일본 대지진을 중심으로-)

  • Won-Jo Jung;Akihito Souda;Takashi Yokota;Tadasu Iida;Koji Itami;Myung-Kwon Lee
    • Journal of Navigation and Port Research
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    • v.47 no.1
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    • pp.18-24
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    • 2023

  • After the Great East Japan Earthquake, many reports and books that compiled testimonies of adult victims were published. Thus, refugee situations are well known, but information on the refugee situations of Japanese students is not. This is because what actions the students took and how they sought refuge from an earthquake or tsunami have not been fully recognized. The purpose of this study was to examine and analyze students' refuge behavior in the Great East Japan Earthquake and to predict the refuge behavior of students affected by future disasters. The results of the study showed that students passively acquired information about earthquakes and tsunamis and that their refuge behavior was highly dependent on adults. Immediately after an earthquake, people tended to protect themselves and stay in place until the shaking stopped. However, they tended to move to another place after the shaking occurred frequently. Students living on ria coastlines were likely to move to high places to escape the threat of earthquakes and tsunamis, whereas students living in plain regions were likely to move vertically to tall buildings, such as schools. As for the mode of movement to refugee shelters, the students arrived at the final refugee shelters in one move, and it is assumed that the refugee shelters should be decided in advance and the students should move there.

  • https://doi.org/10.5394/KINPR.2023.47.1.18 인용 PDF

Estimation of Earthquake Magnitude Using High-Frequency Energy Radiation Duration: Application to Regional Earthquakes (고주파 에너지 방사지속시간을 이용한 지진규모산정법 : 지역지진에의 적용)

  • Yun, Won-Young;Park, Sun-Cheon;Jeon, Young-Soo
    • Geophysics and Geophysical Exploration
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    • v.14 no.3
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    • pp.254-260
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    • 2011

  • We studied magnitude determination method using high-frequency energy radiation duration to calculate rapidly magnitude of large earthquakes that occurred around Japan. Fourteen earthquakes were analyzed using Korea Meteorological Administration (KMA) data. We calculated duration of high-frequency energy radiation with 2~4 Hz band pass filter at each data and estimated magnitude. As a result, duration becomes longer as magnitude becomes larger and the magnitude estimated using regional earthquake data are similar to that using teleseismic data. Therefore when an earthquake occurs around Japan we will be able to estimate the magnitude in a relatively short time using KMA data and it may be possible to determine if the earthquake is large enough to produce tsunami.

  • https://doi.org/10.7582/GGE.2011.14.3.254 인용 PDF KSCI

Fast and Accurate Analyzing Technology for Earthquakes in the Seas around the Korean Peninsula Using Waveform Format Conversion and Composition (파형 변환.합성을 이용해서 한반도 주변 해역 지진 분석을 위한 신속 정확한 분석 기술)

  • Kim So-Gu;Pak Sang-Pyo
    • The Journal of Engineering Geology
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    • v.16 no.2 s.48
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    • pp.171-178
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    • 2006

  • The seismological observation of Korea began in 1905, and has been run with continuous earthquake network of observation, expanding to the advanced country, but still has some problems in accuracy and speed for report. There are many problems to announce the early warning system for earthquakes and tsunami in the East Sea because most events in the East Sea occur outside the seismic network. Therefore multi-waveform data conversion and composition from the surrounding countries such as Korea, Japan and Far East Russia are requested in order to improve more accurate determination of the earthquake parameters. We used FESNET(Far East Seismic Network) technology to analyze the May 29 and June 1 Earthquakes, and the March 20, 2005 Fukuoka Earthquake in this research, using the data sets of KMA, Japan(JMA/MIED) and IRIS stations. It was found out that use of FESNET resulted in more better outputs than that of a single network, either KMA or JMA stations.

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