Slow earthquakes and nonvolcanic tremor

GC Beroza, S Ide - Annual review of Earth and planetary …, 2011 - annualreviews.org
Nonvolcanic tremor is observed in close association with geodetically observed slow-slip
events in subduction zones. Accumulating evidence points to these events as members of a …

Collective behavior of earthquakes and faults: Continuum‐discrete transitions, progressive evolutionary changes, and different dynamic regimes

Y Ben‐Zion - Reviews of Geophysics, 2008 - Wiley Online Library
Crustal deformation patterns are affected by multiscale granulation and healing processes
associated with phase transitions between continuum and discrete states of rocks. The …

Global variations of stress drop for moderate to large earthquakes

BP Allmann, PM Shearer - Journal of Geophysical Research …, 2009 - Wiley Online Library
We investigate the global variation of earthquake stress drops using spectra of about 2000
events of mb≥ 5.5 between 1990 and 2007. We use an iterative least squares method to …

Comprehensive analysis of earthquake source spectra in southern California

PM Shearer, GA Prieto… - Journal of Geophysical …, 2006 - Wiley Online Library
We compute and analyze P wave spectra from earthquakes in southern California between
1989 and 2001 using a method that isolates source‐, receiver‐, and path‐dependent terms …

Variability of seismic source spectra, estimated stress drop, and radiated energy, derived from cohesive‐zone models of symmetrical and asymmetrical circular and …

Y Kaneko, PM Shearer - Journal of Geophysical Research …, 2015 - Wiley Online Library
Large variability of earthquake stress drops and scaled energy has been commonly reported
in the literature, but it is difficult to assess how much of this variability is caused by …

Source parameters of picoseismicity recorded at Mponeng deep gold mine, South Africa: Implications for scaling relations

G Kwiatek, K Plenkers, G Dresen… - Bulletin of the …, 2011 - pubs.geoscienceworld.org
We investigate the source parameters of picoseismic and nanoseismic events (M w>-4.1)
recorded with a high-sensitivity seismic network at the Mponeng gold mine in South Africa to …

Seismic source spectra and estimated stress drop derived from cohesive-zone models of circular subshear rupture

Y Kaneko, PM Shearer - Geophysical Journal International, 2014 - academic.oup.com
Earthquake stress drops are often estimated from far-field body wave spectra using
measurements of seismic moment, corner frequency and a specific theoretical model of …

Comparing EGF Methods for Estimating Corner Frequency and Stress Drop From P Wave Spectra

PM Shearer, RE Abercrombie… - Journal of …, 2019 - Wiley Online Library
Abstract Empirical Green's functions (EGFs) are widely applied to correct earthquake spectra
for attenuation and other path effects in order to estimate corner frequencies and stress …

Investigating uncertainties in empirical Green's function analysis of earthquake source parameters

RE Abercrombie - Journal of Geophysical Research: Solid …, 2015 - Wiley Online Library
I use a well‐recorded earthquake sequence to investigate the uncertainties of earthquake
stress drops calculated using an empirical Green's function (EGF) approach. The …

Spatial and temporal stress drop variations in small earthquakes near Parkfield, California

BP Allmann, PM Shearer - Journal of Geophysical Research …, 2007 - Wiley Online Library
We estimate source parameters from spectra of 42367 earthquakes between 1984 and 2005
that occurred in the Parkfield segment of the San Andreas Fault in central California. We use …