Results 11 to 20 of about 425,685 (304)

Study on three independent parameters of focal mechanism solution [PDF]

open access: yesEarthquake Science, 2017
In this paper, the relationships of the plunges and azimuths of T and P axes versus the strikes, dips, and rakes of two seismic nodal planes were derived to provide reference for earthquake researchers. The independence of the plunges and azimuths of T, B, and P axes in focal mechanism solution was discussed, and it was concluded that three parameters,
Li, Qi, Tan, Kai
openaire   +1 more source

Seismicity-based 3D model of ruptured seismogenic faults in the North-South Seismic Belt, China

open access: yesFrontiers in Earth Science, 2023
The North–South Seismic Belt produces the most frequent strong earthquakes in the Chinese continental region, such as the MS 8.0 Wenchuan earthquake on 12 May 2008 and Ms 7.0 Lushan earthquake on 20 April 2013.
Yilin Rong   +4 more
doaj   +1 more source

Application of simulated annealing to focal mechanism determination [PDF]

open access: yes, 2015
Simulated annealing (SA) is known as one of the efficient methods for global optimization. It allows for getting an optimal solution by jumping out of local minimum.
Komatsu, Masanao, Takenaka, Hiroshi
core   +1 more source

The reliability of reported depths of some earthquake sequences in Northwestern Greece (Epirus and Corfu Island) and the geodynamic situation of the area

open access: yesAnnals of Geophysics, 1996
The study of the earthquakes of the rectangle with coordinates 39°-40°N 19°-21°E is very important for a better understanding of the geodynamics of this area.
B. Muço
doaj   +1 more source

Normative expression and accurate understanding of focal mechanism parameters

open access: yesGeosystems and Geoenvironment, 2023
This paper aims at the understanding of the relationship between the upper and lower hemisphere projection maps of the focal sphere, the correct reading of the focal mechanism parameters on the projection diagram, and to investigate if there is ...
Xuecan Jia   +3 more
doaj   +1 more source

Morphotectonic interpretation of the 23-02-2015 Albacete earthquake, Spain [PDF]

open access: yes, 2016
On 02-23-2015, an earthquake took place in the Iberian Peninsula megablock. This event is of the intraplate- type (Mw= 4,7 / h= 17 km) where there is a deformed morphotectonic zone.
Cotilla Rodríguez, Mario   +1 more
core   +3 more sources

Fine relocation, mechanism, and tectonic indications of middle-small earthquakes in the Central Tibetan Plateau

open access: yesEarth and Planetary Physics, 2018
The medium-small earthquakes that occurred in the middle part of Tibetan Plateau (32°N–36°N, 90°E–93°E) from August 2016 to June 2017 were relocated using the absolute earthquake location method Hypo2000.
YuLan Li   +5 more
doaj   +1 more source

The 1980, 1997 and 1998 Azores earthquakes and its seismotectonic implications [PDF]

open access: yes, 2007
We have studied the focal mechanisms of the 1980, 1997 and 1998 earthquakes in the Azores region from body-wave inversion of digital GDSN (Global Digital Seismograph Network) and broadband data. For the 1980 and 1998 shocks, we have obtained strike– slip
Bezzeghoud, M.   +4 more
core   +1 more source

The 2018 MS 5.9 Mojiang Earthquake: Source model and intensity based on near-field seismic recordings

open access: yesEarth and Planetary Physics, 2019
On September 8, 2018, an MS 5.9 earthquake struck Mojiang, a county in Yunnan Province, China. We collect near-field seismic recordings (epicentral distances less than 200 km) to relocate the mainshock and the aftershocks within the first 60 hours to ...
Xu Zhang   +4 more
doaj   +1 more source

Focal mechanism inversion of the 2018 MW7.1 Anchorage earthquake based on high-rate GPS observation

open access: yesGeodesy and Geodynamics, 2021
The MW7.1 Anchorage earthquake is the most destructive earthquake since the 1964 MW9.2 great Alaska earthquake in the United States. In this study, high-rate GPS data and near-field broadband seismograms are used in separate and joint inversions by the ...
Yanhao Zhang   +3 more
doaj   +1 more source

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