Aftershock cascades are a characteristic feature of natural seismicity, but underlying mechanisms remain debated. Here, we experimentally explore the presence or absence aftershocks during failure intact rock and slip on newly created laboratory faults. We show that overall activity increase spatial localization acoustic emission (AE) events fracture nucleation occurs without temporal (Omori-ty...

Abstract This paper describes the methods and results of strong ground motion simulations for three earthquakes from 2016 Kumamoto earthquake sequence using corrected empirical Green’s functions. The target were an aftershock ( M w 5.5), largest foreshock 6.1), mainshock 7.1). function method was used in simulations. simulation combines simple source path factors with site amplification phase t...

A comprehensive assessment of aftershocks occurrence for the November 26th, 2019 earthquake, ML=6.3, 16 km north Durrës, Albania was achieved. b-value estimated as 0.88 ±0.07. is close to 1.0 and relatively small may be resulted from plenty larger with ML4.0. p-value calculated 1.23±0.08 Mmin=3.1 Tstart=0.0034 days. This high a result relative fast decay rate aftershock activity. Dc-value 1.74±...

Abstract The 2022 M w 6.2 Pasaman earthquake took place in central-west Sumatra association with activity the Sumatran Fault system. This study clarifies spatial and temporal distribution of sequence forecasts sequence’s impact on seismicity vicinity We first examined before mainshock observed low b -value anomalies, shedding light earthquake’s precursor by monitoring -values prior to event. Ba...

A comprehensive evaluation of region-time-magnitude behaviours aftershocks following the 24 January 2020 (Mw = 6.8) Elazığ-Sivrice (Türkiye) earthquake was achieved by using characteristic parameters such as b-value, p-value, Dc-value and Mamax value aftershock occurrences. The b-value calculated 0.82 ± 0.02 considering magnitude completeness Mcomp 1.9, it is relatively small compared to typica...

Sumatra is one of the prone areas in Indonesia to earthquakes. This condition due its geography which traversed by active faults, subduction zones, and volcanoes. In this study, distribution earthquakes occurrences modeled considering effects spatial trends volcanoes also cluster caused mainshock aftershock activities using inhomogeneous Cauchy process. trend modeling, there are indications tha...

Focusing on soil liquefaction, the seismic records during the Niigata-ken earthquake in 1964, the southern Hyogo prefecture earthquake in 1995 and the 2011 off the Pacific coast of Tohoku earthquake are analyzed by the non-stationary Fourier spectra. The shift of dominant frequency in the seismic record of Kawagishi-cho during the Niigata-ken earthquake is evaluated based on the time-variant pr...

The 2015 Fillmore swarm occurred about 6 km west of the city of Fillmore in Ventura, California, and was located beneath the eastern part of the actively subsiding Ventura basin at depths from 11.8 to 13.8 km, similar to two previous swarms in the area. Template-matching event detection showed that it started on 5 July 2015 at 2:21 UTC with an M ∼ 1:0 earthquake. The swarm exhibited unusual epi...