Relation between the celestial tide-generating stress and the temperature variations of the Abruzzo <i>M</i> = 6.3 Earthquake in April 2009

Abstract

Abstract. The temperature variations caused by additive tectonic stress has been studied to explain its relationship with the seismic fault sliding of the Abruzzo M = 6.3 Earthquake in April 2009. According to the periodic changes of the additive tectonic stress caused by the celestial tidegenerating force, the temperature variations before and after the earthquake have been analyzed based on the temperature data from National Centers for Environmental Prediction (NCEP). The figures of temperature variations clearly show that the abnormal increasing of the temperature has resulted from seismic fault sliding. Based on this method, it is possible to forewarn short-impending earthquakes.

The Outgoing Longwave Radiation Analysis of Medium and Strong Earthquakes

“…The tidal force induced by celestial bodies represents one of the most important external causes of ground stress, which may accumulate to the extent of triggering an earthquake [35]- [37]. It is periodically and continuously changing and the phase of its seismic induction varies with seismic structure [22], [38], [39]. At present, the tide-generating force of celestial bodies is the only earth deformation phenomenon that can be calculated in advance, which has a certain indicative function in the time domain, but it is difficult to judge whether the stress intensity of seismogenic tectonic movement will reach the critical point.…”

“…The normal fault and strike-slip type earthquake mostly occurs near the peak of the tidal force position. Usually, the first low-value phase moment before them is selected as the background moment, and then the moment is subtracted daily; the reverse fault type earthquake occurs mostly in the low tide position，and preseismic high point is usually chosen as the background of this period [21], [23][24][25].…”

“…This procedure is done in order to reduce disturbances from other factors and extract the abnormal temperature increase caused by activities in the Earth's crust [22], [23]. This algorithm does not require long-term background data and its thermal anomaly results are consistent with the law of thermal radiation change in the process of rock mechanics loading fracture, that is, increasing→strengthen→peak→fading→re-strengthen→calmness [22], [24]- [26].…”

Possible thermal brightness temperature anomalies associated with the Lushan (China) M S7.0 earthquake on 20 April 2013

“…The increases of land surface temperature (LST) are regarded as anomalies of the tectonic activities, including earthquakes. In order to identify possible thermal anomalies from the background temperature variations, several data process methods have been introduced and applied to earthquake case studies (Filizzola et al 2004;Saraf and Choudhury 2005;Tramutoli et al 2005;Zhang et al 2010;Blackett et al 2011;Ma et al 2012). Possible perturbing effects from clouds in studying thermal anomalies have been well discussed to improve the reliability of thermal anomalies (Aliano et al 2008;Genzano et al 2007).…”

Thermal infrared brightness temperature anomalies associated with the Yushu (China) <i>M</i><sub>s</sub> = 7.1 earthquake on 14 April 2010

“…A subtraction method was used to work out time series of temperature difference, from which TIR anomalies associated with earthquakes could be picked up (Yang et al, 2010). To choose the reference background temperature which will be subtracted from later temperature images, a model of additive tectonics stress from celestial tide-generating force (ATSCTF) was introduced to select the period in which the background temperature can be chosen (Ma et al, 2012).…”