Results 61 to 70 of about 12,097 (215)
In December 2018, the NASA InSight lander successfully placed a seismometer on the surface of Mars. Alongside, a hammering device was deployed at the landing site that penetrated into the ground to attempt the first measurements of the planetary heat ...
David Sollberger +19 more
doaj +1 more source
Shallow Creep in the Leaky Stress Shadow of Locked Zones of Subduction Megathrust
Abstract In some subduction zones such as Nankai, creeping of the shallow part of the megathrust in the stress shadow of deeper locked zones is detected by seafloor geodetic measurements and/or reflected by slow earthquakes (SEQs). Here we explain that shallow creep occurs in the stress shadow for two reasons: (a) prolonged afterslip and (b) a leaky ...
Kelin Wang, Yajing Liu, Tianhaozhe Sun
wiley +1 more source
Self-attraction effect and correction on three absolute gravimeters
The perturbations of the gravitational field due to the mass distribution of an absolute gravimeter have been studied. The so called Self Attraction Effect (SAE) is crucial for the measurement accuracy, especially for the International Comparisons, and ...
+17 more
core +1 more source
The fast response of volcano-seismic activity to intense precipitation: Triggering of primary volcanic activity by rainfall at Soufrière Hills Volcano, Montserrat [PDF]
One-minute resolution time series of rainfall and seismic data from the Soufriere Hills Volcano, Montserrat are analysed to explore the mechanism of external forcing of volcanic eruptions by rainfall over three years of activity.
Adrian J. Matthews +35 more
core +1 more source
The Detection of Transient Subduction Zone Interface Properties Using Teleseismic Data
Abstract The physical properties of subduction zone interfaces govern the transition between stable aseismic slip, episodic slow slip events (SSEs), and large earthquakes. Ultraslow velocity layers (USVLs) along the megathrust are commonly interpreted as indicators of elevated pore‐fluid pressures that promote slow slip, but their temporal variability ...
F. Rappisi, T. J. Craig, S. Rost
wiley +1 more source
An Overview of Traditional and Next-Generation Earthquake Early Warning Systems
The Earthquake Early Warning System generates rapid and effective warnings after detecting an earthquake, before the arrival of destructive waves to the areas that may be affected. In this way, it is aimed to minimize the loss of life and property.
Süleyman Tunç +3 more
doaj +1 more source
A device for calibrating and metrological verification of digital seismic recorders
Periodic temporary change properties seismometrological own equipment or foreign develop-ment requires periodic their engineering studies and measurement control. In the period of the USSM is made on test seismometer calibration devices located in Russia.
S. V. Shcherbina
doaj +1 more source
Method and apparatus for shock protection Patent [PDF]
Removable potting compound for instrument shock ...
Osullivan, W. J., Jr., Pezdirtz, G. F.
core +1 more source
Simulation of underground gravity gradients from stochastic seismic fields
We present results obtained from a finite-element simulation of seismic displacement fields and of gravity gradients generated by those fields. The displacement field is constructed by a plane wave model with a 3D isotropic stochastic field and a 2D ...
B. L. N. Kennett +7 more
core +1 more source
Abstract Distributed acoustic Sensing (DAS) data collected along a 30 km length of telecommunications fiber crossing the Alpine Fault near Haast enable analysis of interactions between fluvioglacial and seismotectonic processes. Here we use DAS recordings of 25 earthquakes to probe near‐surface structure beneath the Haast river valley.
Allan Raudsepp +4 more
wiley +1 more source

