Title Page
Contents
요약 10
Ⅰ. Introduction 12
Ⅱ. Study area 15
2.1. The Heunghae Basin 15
2.2. The Jeokjung-Chogye Basin (JCB) 19
Ⅲ. Method 23
Ⅳ. Data 31
4.1. The Heunghae Basin 35
4.2. The Jeokjung-Chogye Basin (JCB) 37
Ⅴ. Result and Discussion 40
5.1. The Heunghae Basin 44
5.2. The Jeokjung-Chogye Basin (JCB) 50
Conclusion 57
References 60
Appendices 65
Appendix A 65
Appendix B 86
Table 3.1. Criteria for a reliable HVSR curve. 26
Table 3.2. Criteria for a clear HVSR peak. 26
Figure 2.1. A geological map of the Heunghae Basin. 16
Figure 2.2. A geological map of the Jeokjung-Chogye Basin (JCB). 21
Figure 4.1. Photos of the geophone station. 32
Figure 4.2. Photos of the 2017 Pohang earthquake aftershock monitoring network. (a) Satellite image around the station. The... 33
Figure 4.3. Photo of the 2017 Pohang earthquake aftershock monitoring network. 34
Figure 4.4. Map of seismic stations in the Heunghae Basin. The black dashed line represents the layout of the Heunghae Basin.... 36
Figure 4.5. Map of seismic stations in the Jeokjung-Chogye Basin (JCB). The darkblue triangles indicate the geophones, the green... 38
Figure 4.6. Zoom-in version of Figure 4.5. 39
Figure 5.1. Typical cases without resonance frequency (ƒp). The black solid line and the gray solid line mean...[이미지참조] 41
Figure 5.2. Typical cases single resonance frequency (ƒp). The black solid line and the gray solid line...[이미지참조] 42
Figure 5.3. Typical cases multiple resonance frequency (ƒp). The black solid line and the gray...[이미지참조] 43
Figure 5.4. Distribution of HVSR-derived first resonance frequency (ƒ₁). The black solid and dashed line represents the indicate the... 46
Figure 5.5. Distribution of HVSR-derived second resonance frequency (ƒ₂). The black solid and dashed line represents the... 47
Figure 5.6. Depth distribution estimated from ƒ₁. 48
Figure 5.7. Depth distribution estimated from ƒ₂. 49
Figure 5.8. Distribution of HVSR-derived first resonance frequency (ƒ₁). The black solid represent the indicate the inferred faults. 52
Figure 5.9. Zoom-in version of figure 5.8. 53
Figure 5.10. Depth distribution estimated from ƒ₁. 54
Figure 5.11. Zoom-in version of figure 5.10. 55
Figure 5.12. Distribution of HVSR-derived multiple resonance frequency (ƒp).[이미지참조] 56