ML Scale in Northwestern Turkey from 1999 Izmit Aftershocks: Updates

An 8 month slow slip event triggers progressive nucleation of the 2014 Chile megathrust

“…The analysis of relative time and spatial variations of between-event residuals allow us to compare the source effects of earthquakes with various magnitude and locations [Strasser et al, 2010, Atik et al, 2010Youngs et al, 1995]. It has been shown that response between-event residuals are fully correlated with "classical" Fourier stress drops [Bindi et al, 2007], so there is no information lost using response spectra and GMPEs compared to a more classical stress drop analysis. The between-event residuals were then organized as a function of time, space, and magnitude, in order to represent their variations and temporal evolution during the different periods before or after the main shock (Figures 3 and S15).…”

Detailed analysis of spatiotemporal variations of the stress field orientation along the Izmit-Düzce rupture in NW Turkey from inversion of first-motion polarity data

“…SABONET consists of 15 stations equipped with Mark L4-3-D 1 Hz seismometers, 24-bit digitizers operated at a sampling rate of 100 Hz and global positioning system (GPS) timing (Milkereit et al 2000;Baumbach et al 2003;Bindi et al 2007). SABONET was operated in event triggering mode during the time period considered here (1997)(1998)(1999)(2000)(2001) except for the 2-month Izmit aftershock sequence when it was switched to continuous recording.…”

A Magnitude Attenuation Function Derived for the 2014 Pisagua (Chile) Sequence Using Strong-Motion Data

“…models from other tectonic setting could introduce a bias in the estimates (e.g., an overestimation when the crustal model calibrated for California is applied). We follow a nonparametric approach (e.g., Savage and Anderson, 1995;Spallarossa et al, 2002;Bindi et al, 2007), in which the attenuation is provided in a tabular form without fixing a priori the functional dependence on distance. Each value corresponds to the attenuation at one node of the discretized distance range.…”