Update on monitoring of magnetic and electromagnetic tectonic signals in Central Italy [PDF]
Annals of Geophysics, 2007 A network of three absolute magnetometer stations and the geomagnetic observatory of L’Aquila (42°23N, 13°19E) monitors possible seismo- or tectonomagnetic effects in Central Italy, using L’Aquila Observatory as a reference for differentiation.
Di Mauro, D. +4 more
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The 6 April 2009 earthquake at L'Aquila: a preliminary analysis of magnetic field measurements [PDF]
, 2010 Several investigations reported the possible identification of anomalous geomagnetic field signals prior to earthquake occurrence. In the ULF frequency range, candidates for precursory signatures have been proposed in the increase in the noise background
De Lauretis, M. +13 more
core +8 more sources
Piezomagnetic fields associated with a dislocation source in a layered elastic medium [PDF]
, 2021 The piezomagnetic effect is defined as a change in magnetization with applied stress. Changes in the geomagnetic field caused by the piezomagnetic effect, referred to as the piezomagnetic field, have been theoretically estimated and compared by previous ...
Yamazaki, Ken'ichi
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Phase space Heisenberg-limited estimation of the average phase shift in a Mach–Zehnder interferometer [PDF]
, 2020 We address the problem of distributed quantum metrology with a single squeezed-vacuum source by using the formalism of quantum mechanics in phase space. In particular, we demonstrate Heisenberg-limited sensitivity in the measurement of the average of two
Facchi, Paolo +2 more
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Statistical significance of geomagnetic diurnal variation anomalies prior to worldwide earthquakes [PDF]
, 2021 The anomalous behavior of geomagnetic diurnal variation was reported by prior studies several months before the great 2011 Tohoku earthquake. In order to be further developed for a reliable earthquake prediction system, the statistical significance of ...
Ahadi, Suaidi +4 more
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Multi-point ground-based ULF magnetic field observations in Europe during seismic active periods in 2004 and 2005 [PDF]
, 2010 International audience(Civ. 2e, 17 mars 2016, n° 14-24.986, D.
G. Prattes +8 more
core +3 more sources
Magnetic storm free ULF analysis in relation with earthquakes in Taiwan [PDF]
, 2012 Despite early optimism, pre-earthquake anomalous phenomena can be determined by using enhanced amplitude at the ultra-low-frequency range from geomagnetic data via the Fourier transform.
C.-H. Chen +8 more
core +1 more source
Rethinking earthquake-related DC-ULF electromagnetic phenomena: towards a physics-based approach [PDF]
, 2011 Numerous electromagnetic changes possibly related with earthquakes have been independently reported and have even been attempted to apply to short-term prediction of earthquakes.
Q. Huang
core +1 more source
Distributed quantum metrology with a single squeezed-vacuum source [PDF]
, 2019 We propose an interferometric scheme for the estimation of a linear combination with non-negative weights of an arbitrary number M > 1 of unknown phase delays, distributed across an M-channel linear optical network, with Heisenberg-limited sensitivity.
Facchi, Paolo +3 more
core +3 more sources
Multi-point ground-based ULF magnetic field observations in Europe during seismic active periods in 2004 and 2005 [PDF]
, 2008 We present the results of ground-based Ultra Low Frequency (ULF) magnetic field measurements observed from June to August 2004 during the Bovec earthquake on 12 July 2004.
G. Prattes +8 more
core +1 more source