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Tonga is a seismologists’ paradise, and not just because of the white-sand beaches. The subduction zone off the east coast of the archipelago racks up more intermediate-depth and deep earthquakes than...
The 14 August 1708 Manosque, France earthquake: new constraintson the damage area from in-depth historical studies
historical earthquakes non-narrativesources damage area building repairs
2015/9/14
In this paper, we re-evaluate the damage area of the 14 August 1708 Manosque earthquake, Southeast France. It is the strongest event (Io = VIII MSK) of a seismic sequence that lasted from March to Oct...
An alternative 3D inversion method for magnetic anomalies with depth resolution
inversion magnetic field weighting function dipolar approximation depth resolution
2015/9/8
This paper presents a new method to invert magnetic anomaly data in a variety of non-complex contexts when a priori information about the sources is not available. The region containing magnetic sourc...
Searching for the effects of the May-June 2012 Emilia seismic sequence (northern Italy):medium-depth deformation structures at the periphery of the epicentral area
Emilia 2012 earthquake Seismic effect Faulting Seismic reflection survey
2015/8/26
In 2012, a seismic sequence occurred in the lowlands of the Emilia-Romagna Region (northern Italy), between the borders of the Modena, Ferrara and Bologna Provinces. It consisted of seven mainshocks (...
Focal mechanism and depth of the 1956 Amorgos twin earthquakes from waveform matching of analogue seismograms
Simulation seismograms Amorgos twins earthquake volcanic arc subduction zone focal mechanism
2015/1/6
Historic analogue seismograms of the large 1956 Amorgos twin earthquakes which occurred in the volcanic arc of the Hellenic subduction zone (HSZ) were collected, digitized and reanalyzed to obtain ref...
Seismic visibility of a deep subduction channel – insights from numerical simulation of high-frequency seismic waves emitted from intermediate depth earthquakes
Seismic visibility deep subduction channel numerical simulation high-frequency seismic waves emitted intermediate depth earthquakes
2015/1/6
Return flow in a deep subduction channel (DSC) has been proposed to explain rapid exhumation of high pressure–low temperature metamorphic rocks, entirely based on the fossil rock record. Supported by ...
Optical method for measuring bed topography and flow depth in an experimental flume
Optical method bed topography flow depth experimental flume
2014/12/31
We describe an optical method known as moiré for acquiring quasi-simultaneous measurements of bed topography and flow depth in laboratory experiments. The moiré method is based on projecting a fringe ...
Some improvements in subbasalt imaging using pre-stack depth migration
improvements subbasalt imaging pre-stack depth migration
2014/12/31
Subbasalt imaging can be improved by carefully
applying pre-stack depth migration. Pre-stack depth migration requires a detailed velocity model and an accurate traveltime calculation.
Isolating along-strike variations in the depth extent of shallow creep and fault locking on the northern Great Sumatran Fault
variations in the depth extent of shallow creep fault locking on the northern Great Sumatran Fault
2014/4/9
The Great Sumatran Fault system in Indonesia is a major right-lateral trench-parallel system that can be divided into several segments, most of which have ruptured within the last century. This study ...
Inclusion of landslide tsunamis generation into a depth integrated wave model
Inclusion landslide tsunamis generation depth integrated wave model
2011/1/19
A numerical model based on the mild slope equation, suitable to reproduce the propagation of small amplitude tsunamis in the far field, is extended to reproduce the generation and the propagation of w...
The effect of third-order nonlinearity on statistical properties of random directional waves in finite depth
third-order nonlinearity statistical properties random directional waves finite depth
2009/10/30
It is well established that third-order nonlinearity produces a strong deviation from Gaussian statistics in water of infinite depth, provided the wave field is long crested, narrow banded and suffici...
Nonlinear long-wave deformation and runup in a basin of varying depth
Nonlinear long-wave deformation runup basin of varying depth
2009/10/30
Nonlinear transformation and runup of long waves of finite amplitude in a basin of variable depth is analyzed in the framework of 1-D nonlinear shallow-water theory. The basin depth is slowly varied f...
Influence of the Depth-Dependence of the PAR Diffuse Attenuation Coefficient on the Computation of Downward Irradiance in Different Water Bodies
underwater irradiance diffuse attenuation coefficient of light lake optics
2009/6/10
Three methods of determination of underwater irradiance in PAR region of the spectrum are considered:(1) measurements in situ (alternative possibility is theoretical calculations using spectral values...