9:00 AM - 9:15 AM
[G04-01] Comparison of non-stationary crustal deformation vector diagrams using F5 solution
Keywords:crustal deformation, GEONET, F5 solution
Seismic activity has been increasing in the Noto since 2020.12, and on 2023.1.1, a large-scale earthquake of M7.6 occurred, and shaking with a seismic intensity of 6 upper or 7 was observed in various parts of the Noto. The crustal deformation of the Japan arc, which is located in a plate subduction zone, can be observed in detail by GEONET (GNSS Earth Observation Network System), which consists of approximately 1,400 GNSS observation points managed by the Geospatial Information Authority of Japan (GSI), and crustal deformation associated with earthquakes and volcanic activity, as well as crustal deformation associated with plate movement, have been observed.
GEONET, which began operation in 1996, has observed many crustal deformations associated with seismic and volcanic activity. The daily observation data observed by GEONET is publicly available in vector diagrams, time series, and coordinate data. Anyone can use the publicly available coordinate data to think about crustal deformation in the Japan arc.
In current junior high school education, natural disasters are covered throughout the three years in the unit "Earth," but except for crustal deformation and seismic activity, which are studied in the first year of junior high school, they are taught in the "Environment" section in the third year of junior high school. It is only mentioned as one of the natural disasters in the unit, and there are few opportunities to touch on the crustal deformation of the Japan arc. Therefore, creating teaching materials that can visually capture the crustal deformation and seismic activity of the Japan arc is considered to be an effective introduction to thinking about the crustal deformation of the Japan arc.
GSI has already released vector diagrams showing the crustal deformation of the Japan arc through video, showing the horizontal deformation for 20 years since 1997, as well as the horizontal crustal deformation for the three years from 1996 to 1999, and the horizontal deformation in 2011. An animation showing the horizontal crustal deformation caused by the Tohoku Pacific Coast Earthquake that occurred on 2011.3.11 has been released. However, no animation has been created or published to visually capture recent crustal movements.
This study, we will create an animation of crustal deformation in the Japan arc using the F5 solution. And more, we compared crustal deformation before and after a relatively large earthquake that occurred on the Noto.
In the Noto, we were able to visually see that due to relatively large earthquakes that have repeatedly occurred, there has been crustal deformation in the northwest direction, and that there has been a tendency for uplift after earthquakes. The crustal deformation map created this time will be an intuitive teaching material for junior high school students who will be learning about crustal deformation and seismic activity.
GEONET, which began operation in 1996, has observed many crustal deformations associated with seismic and volcanic activity. The daily observation data observed by GEONET is publicly available in vector diagrams, time series, and coordinate data. Anyone can use the publicly available coordinate data to think about crustal deformation in the Japan arc.
In current junior high school education, natural disasters are covered throughout the three years in the unit "Earth," but except for crustal deformation and seismic activity, which are studied in the first year of junior high school, they are taught in the "Environment" section in the third year of junior high school. It is only mentioned as one of the natural disasters in the unit, and there are few opportunities to touch on the crustal deformation of the Japan arc. Therefore, creating teaching materials that can visually capture the crustal deformation and seismic activity of the Japan arc is considered to be an effective introduction to thinking about the crustal deformation of the Japan arc.
GSI has already released vector diagrams showing the crustal deformation of the Japan arc through video, showing the horizontal deformation for 20 years since 1997, as well as the horizontal crustal deformation for the three years from 1996 to 1999, and the horizontal deformation in 2011. An animation showing the horizontal crustal deformation caused by the Tohoku Pacific Coast Earthquake that occurred on 2011.3.11 has been released. However, no animation has been created or published to visually capture recent crustal movements.
This study, we will create an animation of crustal deformation in the Japan arc using the F5 solution. And more, we compared crustal deformation before and after a relatively large earthquake that occurred on the Noto.
In the Noto, we were able to visually see that due to relatively large earthquakes that have repeatedly occurred, there has been crustal deformation in the northwest direction, and that there has been a tendency for uplift after earthquakes. The crustal deformation map created this time will be an intuitive teaching material for junior high school students who will be learning about crustal deformation and seismic activity.