메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국지진공학회 한국지진공학회 논문집 한국지진공학회논문집 제22권 제6호
발행연도
2018.1
수록면
323 - 332 (10page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
Recent two moderate earthquakes (2016 Mw=5.4 Gyeongju and 2017 Mw=5.5 Pohang) in Korea provided the unique chance of developing a set of relations to estimate instrumental seismic intensity in Korea by augmenting the time-history data from MMI seismic intensity regions above Ⅴ to the insufficient data previously accumulated from the MMI regions limited up to Ⅳ. The MMI intensity regions of Ⅴ and Ⅵ was identified by delineating the epicentral distance from the reference intensity statistics in distance derived by using the integrated MMI data obtained by combining the intensity survey results of KMA (Korea Meteorological Administration) and ‘DYFI (Did You Feel It)’ MMIs of USGS. The time-histories of the seismic stations from the MMI intensity regions above Ⅴ were then preprocessed by applying the previously developed site-correction filters to be converted to a site-equivalent condition in a manner consistent with the previous study. The average values of the ground-motion parameters for the three ground motion parameters of PGA, PGV and BSPGA (Bracketed Summation of PGA per second for 30 seconds) were calculated for the MMI=Ⅴ and Ⅵ and used to generate the dataset of the average values of the ground-motion parameters for the individual MMIs fromⅠ to Ⅵ. Based on this dataset, the linear regression analysis resulted in the following relations with proposed valid ranges of MMI. MMI = 2.36 × log10(PGA(gal)) + 1.44 (Ⅰ≤ MMI < Ⅶ ) MMI = 2.44 × log10(PGV(kine)) + 4.86 (Ⅰ≤ MMI < Ⅹ ) MMI = 2.59 × log10(BSPGA(gal․sec)) - 1.02 (Ⅰ≤ MMI < Ⅶ~Ⅷ ) Comparison with other empirical relations developed for the various seismological environments such as western, central, and eastern U.S. leads to the conclusion that the PGV-MMI relation above can be reasonably extrapolated to the MMI up to Ⅹ beyond the observed MMI limit of Ⅵ, while the PGA-MMI is only valid up to Ⅶ. An explanatory interpretation was also tried for the obvious difference of the MMI attenuation pattern in distance between the two moderate earthquakes by introducing the crustal structure with Conrad discontinuity, depth-varying Q-values and the relevant wave phases.

목차

등록된 정보가 없습니다.

참고문헌 (28)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0