Results 11 to 20 of about 306,561 (318)

Fast Holocene slip and localized strain along the Liquiñe-Ofqui strike-slip fault system, Chile

open access: yesScientific Reports, 2021
In active tectonic settings dominated by strike-slip kinematics, slip partitioning across subparallel faults is a common feature; therefore, assessing the degree of partitioning and strain localization is paramount for seismic hazard assessments.
Luis Astudillo-Sotomayor   +5 more
doaj   +1 more source

Analysis and treatment of common faults in seismic station computers

open access: yes地震科学进展, 2022
Taking the computer of seismic station as the object of discussion, the causes of “system crash” “automatic shutdown” “blue screen” and other faults that frequently occur in the computer at the precursor site area are analyzed and studied. Reasonable and
Jianjun Quan   +7 more
doaj   +1 more source

Seismicity and Principal Seismic Effects [PDF]

open access: yesGeophysical Journal International, 1970
Summary A statistical method is given for estimating the total effect of earthquakes over a given period. The effect may be measured by return-time, shaking or damage, and may be exerted at a point (e.g. building), on a linear object (e.g. road), or on an area. For each type of effect there are given formulae for the statistical distribution,
G. M. Molchan   +2 more
openaire   +1 more source

Experience in comprehensive performance analysis of FHD-2B proton magnetometer at Shaowu seismic station

open access: yes地震科学进展, 2022
Through comprehensive analysis and judgment on the observation environment, instrument operation and output data quality of the FHD-2B component proton magnetometer at Shaowu seismic station affected by human interference, external factors, instrument ...
Miaolu Lin   +3 more
doaj   +1 more source

Comparative analysis of the earthquake disaster risk of cities in Eastern China based on lethal levels – a case study of Yancheng City, Suqian City and Guangzhou City

open access: yesGeomatics, Natural Hazards & Risk, 2021
Earthquake disaster risk analyses provide significant scientific guidance for reducing earthquake disaster losses etc. The current commonly used method is based on the vulnerability of different types of buildings to evaluate, and may ignore the ...
Xia Chaoxu   +5 more
doaj   +1 more source

Comparative analysis of VP type vertical pendulum tiltmeter in Shaanxi Province

open access: yes地震科学进展, 2021
Based on the observation data of VP type vertical pendulum tiltmeter at Qianling station,Xi’an station,Ankang station and Ningshan station in Shaanxi Province from January to December in 2020,the advantages and disadvantages of these observation data are
Xiaodong Yang   +3 more
doaj   +1 more source

Regional Seismic Wavefield Propagation [PDF]

open access: yes, 2004
Through the examination of local and regional seismic waveform data the crust and upper mantle of southern California are investigated. Using local and regional seismic phases such as Pn, Sn, PL, and surface waves, seismic wave velocities of interesting
Savage, Brian Kirk
core   +1 more source

Principles of textual research on historical strong aftershocks and exploration of the catalogue revision plan−A case study of the strong aftershocks of the Tancheng 8½ earthquake in 1668

open access: yes地震科学进展, 2020
In order to put forward the principles and technical links for selecting and verifying historical strong aftershocks,the comprehensive technical scheme for the determination of occurrence time,epicenter location and magnitude of historical strong ...
Shouzhong Diao   +4 more
doaj   +1 more source

Discussion on common problems in data tracking and analysis of geomagnetics

open access: yes地震科学进展, 2023
The tracking and analysis of precursor network observation data is comprehensively carried out at precursor stations and regional centers. The event records generated by the tracking and analysis of earthquake precursor data demonstrate the dynamic ...
Jianjun Quan   +4 more
doaj   +1 more source

Acceleration sensor of medium-high frequency dual FBG based on L-shaped support sensitization structure

open access: yesMeasurement + Control, 2022
It is a key part for micro seismic crack detection, mechanical equipment operation state and structural health monitoring to measure high frequency vibration.
Zhongchao Qiu   +5 more
doaj   +1 more source

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