TY - JOUR
T1 - Investigation of TEC and VLF space measurements associated to L'Aquila (Italy) earthquakes
AU - Stangl, G.
AU - Boudjada, M. Y.
AU - Biagi, P. F.
AU - Krauss, S.
AU - Maier, A.
AU - Schwingenschuh, K.
AU - Al-Haddad, E.
AU - Parrot, M.
AU - Voller, W.
PY - 2011
Y1 - 2011
N2 - In this study, we report on Total Electron Content (TEC) and Very Low Frequency (VLF) space measurements derived from Global Positioning System (GPS) and DEMETER satellites, respectively. These measurements are associated with the earthquake (EQ) of a magnitude of 6.3, which occurred on 6 April 2009, in L'Aquila (Italy). Anomaly features are derived from the analysis of TEC and VLF observations recorded two weeks before and after the seismic event occurrence. A TEC map with an interpolated regional pixel resolution of 1° × 1° × 15 min in latitude, longitude and time was generated, allowing for the checking of a possible presence of disturbances over the L'Aquila region. This analysis is combined with the study of the time profile associated to the VLF flux density variations recorded by the Instrument Champ Electrique (ICE) experiment on-board DEMETER satellite. We discuss, on the one hand, the combination efficiency of the electronic density and the VLF electromagnetic measurements and, on the other hand, the difficulty to distinguish between global effects and regional ones related to the earthquake.
AB - In this study, we report on Total Electron Content (TEC) and Very Low Frequency (VLF) space measurements derived from Global Positioning System (GPS) and DEMETER satellites, respectively. These measurements are associated with the earthquake (EQ) of a magnitude of 6.3, which occurred on 6 April 2009, in L'Aquila (Italy). Anomaly features are derived from the analysis of TEC and VLF observations recorded two weeks before and after the seismic event occurrence. A TEC map with an interpolated regional pixel resolution of 1° × 1° × 15 min in latitude, longitude and time was generated, allowing for the checking of a possible presence of disturbances over the L'Aquila region. This analysis is combined with the study of the time profile associated to the VLF flux density variations recorded by the Instrument Champ Electrique (ICE) experiment on-board DEMETER satellite. We discuss, on the one hand, the combination efficiency of the electronic density and the VLF electromagnetic measurements and, on the other hand, the difficulty to distinguish between global effects and regional ones related to the earthquake.
UR - http://www.scopus.com/inward/record.url?scp=79953712952&partnerID=8YFLogxK
U2 - 10.5194/nhess-11-1019-2011
DO - 10.5194/nhess-11-1019-2011
M3 - Article
AN - SCOPUS:79953712952
SN - 1561-8633
VL - 11
SP - 1019
EP - 1024
JO - Natural Hazards and Earth System Science
JF - Natural Hazards and Earth System Science
IS - 4
ER -