4:30 PM - 4:45 PM
[MTT38-05] Awareness survey results of residents regarding the use of natural event information through infrasound measurement
Keywords:tsunami, disaster prevention, natural disaster, infrasound
Large-scale geophysical phenomena that can cause disasters, such as earthquakes, tsunamis, volcanic eruptions, and debris flows, emit ultra-low frequency sound (infrasound) at frequencies below 20 Hz, the lower limit of human hearing. The importance of infrasound lies in its long-distance propagation and vertical propagation characteristics. Infrasound generated several thousand kilometers away can be sufficiently detected if it has large amplitude, and therefore it has high applicability and utility as a remote sensing method. If such sonic waves can be observed, it will be possible to build a system that provides early warning of the arrival of serious phenomena such as tsunamis. Therefore, even an affordable infrasound observation device using a MEMS barometric pressure sensor has been proven that infrasound can actually be observed in events that could potentially result in a natural disaster, such as a volcanic eruption. It has also been proved through field experiments that it is possible to obtain information on remote natural events, such as estimating the location of sound sources with a certain degree of accuracy.
However, this information would be more useful if it were available not only to geophysics and disaster prevention experts, but also to the general public. Therefore, we are attempting to build a digital platform for natural phenomenon information that uses the data obtained through these technologies and its analysis into visualized information that is accessible even for non-experts. It will enable users actively to understand what is happening to the surrounding natural environment in real-time daily, which will be useful for local disaster prevention and mitigation.
In this study, we conducted "an awareness survey regarding the use of natural event information." The survey was targeting Hokkaido residents (excluding those living in Ebetsu City) who are registered as "Food Clinical Trial Volunteers" at Health Information Science Center, the Hokkaido Information University and can receive e-mails. The purpose of the survey is to analyze the usage status of natural event information by general residents and their interest level in infrasound. Furthermore, the aim is to promote demonstration experiments and social implementation of remote information acquisition using infrasound measurement technology, and to help promoting disaster prevention and mitigation for residents in areas where disasters may occur. The survey methods were based on the following questions, "respondents attributes", "the usage status and media for natural event information", "awareness, efforts, and media regarding disasters and disaster prevention", and "awareness and desired disaster information regarding infrasound". These were asked using a web form with multiple-choice and open-ended questions.
As a result of the survey, we obtained valid responses from 970 people out of 3,711 emails sent. Regarding the usage status of natural event information, the answers to the question "Do you use real-time information such as real-time precipitation forecasts and tornado occurrence information?" 67% answered yes and 33% answered no. Regarding interest level in infrasound, "Would you like to use a website or app that allows you to check real-time information on natural phenomena using infrasound measurement technology?", the answers to the question, 36.2% would very much like to use it, 46.7% somewhat, 15.1% not sure, 1.2% not very much, and 0.8% not at all. This suggests that there is a strong interest in the use of natural event information through infrasound measurements. In this presentation, we will present some of the results of this survey.
Acknowledgment: This study was conducted under NICT's contract research 22605 "subtitle: Standardization of multi-point micro pressure fluctuation measurement package for local disaster prevention and citizen cooperation demonstration experiment in suburban and mountainous areas."
However, this information would be more useful if it were available not only to geophysics and disaster prevention experts, but also to the general public. Therefore, we are attempting to build a digital platform for natural phenomenon information that uses the data obtained through these technologies and its analysis into visualized information that is accessible even for non-experts. It will enable users actively to understand what is happening to the surrounding natural environment in real-time daily, which will be useful for local disaster prevention and mitigation.
In this study, we conducted "an awareness survey regarding the use of natural event information." The survey was targeting Hokkaido residents (excluding those living in Ebetsu City) who are registered as "Food Clinical Trial Volunteers" at Health Information Science Center, the Hokkaido Information University and can receive e-mails. The purpose of the survey is to analyze the usage status of natural event information by general residents and their interest level in infrasound. Furthermore, the aim is to promote demonstration experiments and social implementation of remote information acquisition using infrasound measurement technology, and to help promoting disaster prevention and mitigation for residents in areas where disasters may occur. The survey methods were based on the following questions, "respondents attributes", "the usage status and media for natural event information", "awareness, efforts, and media regarding disasters and disaster prevention", and "awareness and desired disaster information regarding infrasound". These were asked using a web form with multiple-choice and open-ended questions.
As a result of the survey, we obtained valid responses from 970 people out of 3,711 emails sent. Regarding the usage status of natural event information, the answers to the question "Do you use real-time information such as real-time precipitation forecasts and tornado occurrence information?" 67% answered yes and 33% answered no. Regarding interest level in infrasound, "Would you like to use a website or app that allows you to check real-time information on natural phenomena using infrasound measurement technology?", the answers to the question, 36.2% would very much like to use it, 46.7% somewhat, 15.1% not sure, 1.2% not very much, and 0.8% not at all. This suggests that there is a strong interest in the use of natural event information through infrasound measurements. In this presentation, we will present some of the results of this survey.
Acknowledgment: This study was conducted under NICT's contract research 22605 "subtitle: Standardization of multi-point micro pressure fluctuation measurement package for local disaster prevention and citizen cooperation demonstration experiment in suburban and mountainous areas."