搜索结果: 1-15 共查到“地球物理学 Local”相关记录36条 . 查询时间(0.108 秒)
THE EFFECT OF COASTLINE CHANGES TO LOCAL COMMUNITY’S SOCIAL-ECONOMIC
Coastline Changes Socio-economic Coastal Vulnerability Index
2016/10/14
The coastal area is absolutely essential for the purposes of resident, recreation, tourism, fisheries and agriculture as a source of socio-economic development of local community. Some of the activiti...
A detailed analysis of some local earthquakes at Somma-Vesuvius
Somma-Vesuvius seismicity focal mechanisms spectral analysis
2015/10/8
In this paper, we analyze local earthquakes which occurred at Somma-Vesuvius during two episodes of intense seismic swarms, in 1989 and 1995 respectively. For the selected earthquakes we have computed...
Local magnitude, duration magnitude and seismic moment of Dahshour 1992 earthquakes
Dahshour 1992 earthquake local magnitude moment
2015/9/30
Local magnitudes ML have been calculated for 56 earthquakes of the Dahshour 1992 sequence using simulated records of the KEG broadband station and the estimated calibration function of the Dahshour ar...
On the derivation of an hourly local index to define the normal ionosphere
reference ionosphere ionospheric disturbance ionospheric indices
2015/9/30
In this paper an hourly local ionospheric index f n F 2 is proposed to define the normal level of the undisturbed
ionosphere. For the determination of this index a model is developed where the normal...
Research on local magnitude (M L ) scale in and near the Korean Peninsula
Wood-Anderson seismograms local magnitude epicentral distance regression attenuation
2015/9/29
vAfter synthesizing Wood-Anderson seismograms from broadband recordings at FDSN stations (BJT, SSE, INC and MDJ) in and near Korea, the empirical equations, for the vertical and horizontal components,...
Evolution of magnetotelluric,total magnetic field,and VLF field parameters in Central Italy:relations to local seismic activity
Magnetotelluroc tectonomagnetism VLF waves
2015/9/28
Magnetotelluric data were collected at Collemeluccio (41.72°N, 14.37°E) in Central Italy from summer 1991 to spring 1998. Analyzed by means of tensor decomposition on the geoelectric potential and rob...
On the estimate of earthquake magnitude at a local seismic network
southeastern Sicily digital seismic network magnitude
2015/9/28
We investigated possible uncertainties and biases of magnitude estimate arising from instrument characteristics, site conditions and routine data processing at a local seismic network running in South...
Local time behaviour of low frequency geomagnetic field fluctuation power at low latitude
Geomagnetic pulsation MHD waves and instabilities
2015/9/28
In this paper we present a statistical study of the local time behaviour of low frequency (0.7-4.0 mHz) geomagnetic field fluctuation power at a low latitude station (corrected geomagnetic latitude 36...
Earth modeling and estimation of the local seismic ground motion due to site geology in complex volcanoclastic areas
dynamic amplification factor seismic tomography pyroclastic rocks finite element method
2015/9/25
Volcanic areas often show complex behaviour as far as seismic waves propagation and seismic motion at surface are concerned. In fact, the finite lateral extent of surface layers such as lava flows, bl...
Estimation of seismic moments from local magnitudes and coda durations for the Cairo earthquake aftershocks recorded at Kottamyia (KEG) Broadband station
aftershocks seismic moment scaling
2015/9/17
The spectral analysis of fifty-five KEG VBB records from the October 12, 1992 Cairo earthquake source region
was performed to obtain the seismic moment. We obtained this parameter in turn to develop ...
An attenuation study in Southern Italy using local and regional earthquakes recorded by seismic network of Basilicata
seismic attenuation Southern Italy Q
2015/9/15
We determined a set of empirical functions that describe the spectral amplitude decay of S-waves with distance in Southern Italy. We analyzed 32 earthquakes with magnitudes ML 2.0-5.4 and hypocentral ...
Results from the temporary installation of a small aperture seismic arrayin the Central Apenninesand its merits for local event detectionand location capabilities
seismic array beamforming f-kanalysis Central Apennines
2015/9/15
In order to evaluate the detection and localisation improvement of a small aperture array in the Northern Apennines, we installed an irregularly spaced test configuration in the vicinity of Città di C...
Bayesian analysisof a probability distribution for local intensity attenuation
Beta distribution binomial distribution power law random intensity decay validation
2015/9/15
Intensity attenuation and its variation as a function of the distance and earthquake size is still a critical issue in evaluating seismic hazard. We present a method that allows us to incorporate addi...
Local stresses, dyke arrest and surface deformation in volcanic edificesand rift zones
dyke injection dyke arrest crustalstresses crustal layering surface deformation volcanic hazard
2015/9/15
Field studies indicate that nearly all eruptions in volcanic edifices and rift zones are supplied with magma through
fractures (dykes) that are opened by magmatic overpressure. While (inferred) dyke ...
Peak ground acceleration produced by local earthquakes in volcanic areas of Campi Flegrei and Mt. Vesuvius
Peak ground acceleration Scaling law Stochastic method Mt. Vesuvius Campi Flegrei
2015/9/14
The scaling law of the seismic spectrum experimentally calculated at Mt. Vesuvius and Campi Flegrei is used to constrain the estimate of the maximum expected peak acceleration of ground motion.