We study the major MW = 7.0, 30 October 2020, Samos earthquake and its aftershocks, by calculating improved locations using differential travel times waveform cross-correlations. image rupture of mainshock local strong motion data, we examine Coulomb stress evolution prior to mainshock, as well coseismic changes. Lastly, estimate produced shaking all available information from data testimonies....

The study investigates ionospheric electric field responses to the earthquake (EQ) of magnitude 8.3, and related seismic activity tsunami triggered by mainshock in Chile-Illapel region, at 22:54 UTC, evening September 16, 2015. work is a wider review available ground satellite data techniques detect seismically induced traveling disturbances (TID) irregularities smaller scale. used experiment i...

Abstract This study introduces an improved hypocentral version of the space‐time Epidemic‐Type Aftershock Sequence (ETAS) model, entitled as 3D‐finite source (3D‐FS) ETAS and applies it to analysis Southern California earthquake catalog. By stochastic reconstruction, we are able reconstruct patterns aftershock productivity density along mainshock ruptures. Detailed reveals that: (1) Directly tr...

An increase in the number of smaller magnitude events, retrospectively named foreshocks, is often observed before large earthquakes. We show that the linear density probability of earthquakes occurring before and after small or intermediate mainshocks displays a symmetrical behavior, indicating that the size of the area fractured during the mainshock is encoded in the foreshock spatial organiza...

[1] We quantitatively map relative rate changes for the aftershock sequence following the second mainshock of the 1997 earthquake doublet (MW = 6.1, MW = 6.0) in the Kagoshima province (Japan). Using the spatial distribution of the modified Omori law parameters for aftershocks that occurred during the 47.8 days between the two mainshocks, we forecast the aftershock activity in the next 50 days ...

The subduction zone in northern Chile is a well-identified seismic gap that last ruptured in 1877. The moment magnitude (Mw) 8.1 Iquique earthquake of 1 April 2014 broke a highly coupled portion of this gap. To understand the seismicity preceding this event, we studied the location and mechanisms of the foreshocks and computed Global Positioning System (GPS) time series at stations located on s...

Seismically active fault systems may be in a state of self-organized criticality (SOC). Investigations of simple SOC models have suggested that earthquakes might be inherently unpredictable. In this paper, we analyze the question of predictability in a more complex and realistic SOC model, which consists of a spring-block system with transient creep characteristics. Additionally to the power la...

We investigated the post-seismic surface displacement of the 2011 Tohoku earthquake around the Kanto Plain (including the capital area of Japan), which is located approximately 400 km from the epicenter, using a global positioning system network during 2005–2015 and persistent scatterer interferometry of TerraSAR-X data from March 2011 to November 2012. Uniform uplift owing to viscoelastic rela...

During any unique crisis, panic sell-off leads to a massive stock market crash that may continue for more than day, termed as mainshock. The effect of mainshock in the form aftershocks can be felt throughout recovery phase price. As remains stress during recovery, small perturbation relatively smaller aftershock. duration has been estimated using structural break analysis. We have carried out s...