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Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
The systematic behavior of earthquake rupture as a function of earthquake magnitude and/or tectonic setting is a key in our understanding of the physical mechanisms involved during earthquake rupture. Geophysical evidence ...
Source mechanism of earthquake in Peru
(Springer, 2001-10)
The source mechanism of 19 earthquakes that occurred in Peru (1990–1996) is studied using broad band data. Focal mechanisms are obtained using polarities of P wave and body wave form inversion. Shallow earthquakes show ...
The deep Peru 2015 doublet earthquakes
(Elsevier, 2017-11-15)
On 24 November 2015 two events of magnitude Mw 7.5 and Mw 7.6 occurred at 600 km depth under the Peru–Brazil boundary. These two events were separated in time by 300 s. Deep event doublets occur often under South America. ...
Earthquakes initiation and thermal shear instability in the Hindu Kush intermediate depth nest
(AMER GEOPHYSICAL UNION, 2016)
Intermediate depth earthquakes often occur along subducting lithosphere, but despite their ubiquity the physical mechanism responsible for promoting brittle or brittle-like failure is not well constrained. Large concentrations ...
The deep Peru 2015 doublet earthquakes
(Elsevier, 2017)
On 24 November 2015 two events of magnitude Mw 7.5 and Mw 7.6 occurred at 600kmdepth under the Peru–Brazil boundary. These two events were separated in time by 300s. Deep event doublets occur often under South America. The ...
Global rupture parameters for deep and intermediate-depth earthquakes
We investigate the global rupture parameters for deep and intermediate-depth earthquakes. From measurements of rupture duration and radiated seismic energy we estimate stress drop, apparent stress, and radiation efficiency ...
Anomalously deep earthquakes related to the Ojo de Agua Lineament and its tectonic significance, Sierras Pampeanas of Córdoba, Central Argentina
(KeAi Communications Co., 2018-01)
The Sierras de Córdoba are the easternmost uplifted ranges of the Sierras Pampeanas geological province of Argentina. They are composed of a Neoproterozoic–Paleozoic basement arranged in north–south aligned mountain ranges, ...
Coseismic slip and early afterslip of the 2015 Illapel, Chile, earthquake: Implications for frictional heterogeneity and coastal uplift
(American Geophysical Union, 2016)
Great subduction earthquakes are thought to rupture portions of the megathrust, where interseismic coupling is high and velocity-weakening frictional behavior is dominant, releasing elastic deformation accrued over a seismic ...
The 21 May 1960 M-w 8.1 Concepción Earthquake: A Deep Megathrust Foreshock That Started the 1960 Central-South Chilean Seismic Sequence
(Seismological Society of America, 2020)
One of the most notable seismic sequences in modern times was recorded in May 1960 along the southern Chilean subduction zone. The sequence started on 21 May with the M-w 8.1 Concepcion earthquake; 33 hr later the M-w 9.5 ...