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From Multi-Sensors Observations Towards Cross-Disciplinary Study of Pre-Earthquake Signals. What have We Learned from the Tohoku Earthquake?The lessons we have learned from the Great Tohoku EQ (Japan, 2011) how this knowledge will affect our future observation and analysis is the main focus of this presentation.We present multi-sensors observations and multidisciplinary research in our investigation of phenomena preceding major earthquakes. These observations revealed the existence of atmospheric and ionospheric phenomena occurring prior to theM9.0 Tohoku earthquake of March 11, 2011, which indicates s new evidence of a distinct coupling between the lithosphere and atmosphere/ionosphere, as related to underlying tectonic activity. Similar results have been reported before the catastrophic events in Chile (M8.8, 2010), Italy (M6.3, 2009) and Sumatra (M9.3, 2004). For the Tohoku earthquake, our analysis shows a synergy between several independent observations characterizing the state of the lithosphere /atmosphere coupling several days before the onset of the earthquakes, namely: (i) Foreshock sequence change (rate, space and time); (ii) Outgoing Long wave Radiation (OLR) measured at the top of the atmosphere; and (iii) Anomalous variations of ionospheric parameters revealed by multi-sensors observations. We are presenting a cross-disciplinary analysis of the observed pre-earthquake anomalies and will discuss current research in the detection of these signals in Japan. We expect that our analysis will shed light on the underlying physics of pre-earthquake signals associated with some of the largest earthquake events
Document ID
20120008700
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Ouzounov, D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pulinets, S. (Institute of Applied Geophysics Moscow, Russian Federation)
Papadopoulos, G. (National Observatory of Athens Greece)
Kunitsyn, V. (Moscow State Univ. Moscow, Russia)
Nesterov, I. (Moscow State Univ. Moscow, Russia)
Hayakawa, M. (University of Electro-Communications Chofu, Japan)
Mogi, K. (Hokkaido Univ. Sapporo, Japan)
Hattori, K. (Chiba Univ. Chiba, Japan)
Kafatos, M. (Chapman Univ. Orange, CA, United States)
Taylor, P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
April 22, 2012
Publication Information
Publication: Geophysical Research Abstracts
Volume: 14
Subject Category
Geophysics
Report/Patent Number
GSFC.ABS.5970.2012
Meeting Information
Meeting: European Geophysical Union (EGU) General Assembly 2012
Location: Vienna
Country: Austria
Start Date: April 22, 2012
End Date: April 27, 2012
Distribution Limits
Public
Copyright
Public Use Permitted.

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