[1] Båth’s law, the observation that the largest aftershock is, on average, 1.2 magnitudes smaller than its main shock, independent of main shock size, suggests some degree of self-similarity in earthquake triggering. This behavior can largely be explained with triggering models in which the increased triggering caused by larger magnitude events is exactly compensated for by their decreased num...

We analyze 21 aftershock sequences of California to test for evidence of space-time diffusion. Aftershock diffusion may result from stress diffusion and is also predicted by any mechanism of stress weakening. Here, we test an alternative mechanism to explain aftershock diffusion, based on multiple cascades of triggering. In order to characterize aftershock diffusion, we develop two methods, one...

In early March 2021, when Greece was struggling with the evolving third wave of COVID-19 pandemic highest numbers daily cases and fatalities from its initiation, Thessaly struck by a seismic sequence, which included 3 March, Mw = 6.3 mainshock, strongest 6.1 aftershock following day numerous large aftershocks. The mainshock caused extensive damage to houses infrastructure, while aggravated wide...

The northward migration of the Mendocino Triple Junction is associated with complex faulting within the Gorda plate and in the convergent zone between the Gorda and North American plates. This region has experienced substantial recent large earthquake activity, and quantification of these faulting processes i essential for understanding the evolution of the triple junction. Using an empirical G...

Earthquake swarms, which are anomalous increases in the seismicity rate without a distinguishable mainshock, often accompany transient aseismic processes, such as fluid migration and episodic slip along faults. Investigations of earthquake swarm activity can provide insights into causal relationship between processes seismicity. Slow events (SSEs) plate interface Hikurangi Trench, New Zealand, ...

Abstract Since the 2011 Mw 9.0 Tohoku-oki earthquake, intra-plate normal-faulting earthquakes, including several M7-class have occurred in outer trench slope area from to rise along Japan Trench. Concerns regarding large earthquakes and associated tsunamis also arisen. Based on aftershock distributions, (hereinafter referred as outer-rise earthquakes) are likely related rupture of multiple faul...

The seismic gap hypothesis states that fault regions where no large earthquake has recently occurred, are more prone than others to host the next earthquake. It can lead idea of immunity after local disaster which, notwithstanding it sounds reasonable, been frequently rejected by objective testing. More generally, estimate occurrence probability big shock on basis time delay from last still rep...

The three aftershock sequences that occurred in Al Hoceima, Morocco, May 1994 (Mw 6.0), February 2004 6.4) and January 2016 6.3) were stochastically modeled to investigate their temporal energetic behavior. A form of the restricted trigger model known as epidemic type sequence (RETAS) was used for analysis selected series. best-determined fit models each differ based on Akaike information crite...

Earthquake aftershock identification is closely related to the question “Are aftershocks different from the rest of earthquakes?” We give a positive answer to this question and introduce a general statistical procedure for clustering analysis of seismicity that can be used, in particular, for aftershock detection. The proposed approach expands the analysis of Baiesi and Paczuski [PRE, 69, 06610...