TY - JOUR
T1 - Seismo-traveling ionospheric disturbances of ionograms observed during the 2011 Mw 9.0 Tohoku Earthquake
AU - Liu, Jann Yenq
AU - Sun, Yang Yi
N1 - Funding Information:
Acknowledgments. Ionsonde ionograms were retrieved from the National Institute of Information and Communications Technology (NICT) in Japan, http://wdc.nict.go.jp/IONO/HP2009/ISDJ/index-E.html, and the National Communications commission (NCC) in Taiwan http://iono.ncc.tw/Ionosphere/Intro cht.aspx. This research was partially supported by the National Science Council Grant, NSC 98-2116-M-008-006-MY3 and NSC 98-2111-M-008-008-MY3 to National Central University.
PY - 2011
Y1 - 2011
N2 - In this paper, sequences of ionograms recorded by 4 ionosondes in Japan and 1 in Taiwan are employed to examine seismo traveling ionospheric disturbances (STIDs) triggered by the 11 March, 2011, M 9.0 Tohoku Earthquake. The circle method, a standard/traditional technique of seismologists for locating an earthquake, is used to find the origin and compute the propagation speed of the triggered STID. Results show that the STID speeds induced by Rayleigh waves, acoustic gravity waves mainly traveling in the ionosphere, and tsunami waves of the Tohoku Earthquake are 2100-3200 m/s (2.1-3.2 km/s), 900 m/s, and 200 m/s (720 km/hr), respectively. The origins derived by the circle method near the epicenter confirm that the observed STIDs were triggered by the seismic waves and tsunami waves of the Tohoku Earthquake.
AB - In this paper, sequences of ionograms recorded by 4 ionosondes in Japan and 1 in Taiwan are employed to examine seismo traveling ionospheric disturbances (STIDs) triggered by the 11 March, 2011, M 9.0 Tohoku Earthquake. The circle method, a standard/traditional technique of seismologists for locating an earthquake, is used to find the origin and compute the propagation speed of the triggered STID. Results show that the STID speeds induced by Rayleigh waves, acoustic gravity waves mainly traveling in the ionosphere, and tsunami waves of the Tohoku Earthquake are 2100-3200 m/s (2.1-3.2 km/s), 900 m/s, and 200 m/s (720 km/hr), respectively. The origins derived by the circle method near the epicenter confirm that the observed STIDs were triggered by the seismic waves and tsunami waves of the Tohoku Earthquake.
KW - Ionosonde
KW - Seismo-traveling ionospheric disturbances
KW - Tohoku Earthquake
UR - http://www.scopus.com/inward/record.url?scp=83155165344&partnerID=8YFLogxK
U2 - 10.5047/eps.2011.05.017
DO - 10.5047/eps.2011.05.017
M3 - 期刊論文
AN - SCOPUS:83155165344
SN - 1343-8832
VL - 63
SP - 897
EP - 902
JO - Earth, Planets and Space
JF - Earth, Planets and Space
IS - 7
ER -