Results 91 to 100 of about 22,636 (288)
Nostradamus: The radar that wanted to be a seismometer [PDF]
Geophysical Research Letters, 2010 Surface waves emitted after large earthquakes are known to induce, by dynamic coupling, atmospheric infrasonic waves propagating upward through the neutral and ionized atmosphere. Those waves have been detected in the past at ionospheric heights using a variety of techniques, such as HF Doppler sounding or GPS receivers.
Philippe Lognonné +4 more
openaire +3 more sources
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 7, July 2025.Abstract Urban karst geology poses significant geohazard risks, most notably sinkholes and surface depression stemming from soluble and fractured bedrock that is prone to dissolution and collapse. However, mapping and characterizing these hazards using traditional geophysical surveys in cities is challenging due to dense infrastructure and high levels ...
Zhinong Wang, Tieyuan Zhu
wiley +1 more source
Monitoring and Modelling the Vibrational Effects of Small (<50 kW) Wind Turbines on the Eskdalemuir IMS Station [PDF]
, 2011 It is known (Styles et al., 2005) that windfarms generate low frequency vibrations which propagate through the ground and have the potential to adversely affect sensitive installations, most notably seismometer arrays set up to monitor for nuclear tests.
Styles, P, Toon, S, Westwood, RF
core +1 more source
Present-day Mars' seismicity predicted from 3-D thermal evolution models of interior dynamics [PDF]
, 2018 ©2018. American Geophysical UnionThe Interior Exploration using Seismic Investigations, Geodesy and Heat Transport mission, to be launched in 2018, will perform a comprehensive geophysical investigation of Mars in situ.
Breuer, D. +8 more
core +3 more sources
A Mercury Pendulum Seismometer [PDF]
Geophysical Journal International, 1974 Summary A long-period mercury pendulum seismometer has been developed at the Seismological Laboratory, California Institute of Technology. The devices are presently operational in several locations throughout the world. The instruments exhibit extremely good sensitivity, stability, and signal to noise ratios in the 0.02-0.001 Hz range. Seismic waves
openaire +2 more sources
The Seismogenic Thickness of Venus
Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.Abstract Growing evidence that volcanism is currently ongoing on Venus suggests that the sister planet of the Earth may also be seismically active. Given the success of seismic measurements on Mars and the Moon to reveal the interior structure of these bodies, seismic investigations on Venus are a natural next step.
Julia S. Maia +12 more
wiley +1 more source
Stochastic Joint Inversion of Seismic and Controlled‐Source Electromagnetic Data
Geophysical Prospecting, Volume 73, Issue 6, July 2025.ABSTRACT Stochastic inversion approaches provide a valuable framework for geophysical applications due to their ability to explore multiple plausible models rather than offering a single deterministic solution. In this paper, we introduce a probabilistic joint inversion framework combining the very fast simulated annealing optimization technique with ...
Pankaj K Mishra +4 more
wiley +1 more source
Trans‐Oceanic Distributed Sensing of Tides Over Telecommunication Cable Between Portugal and Brazil
Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.Abstract Geophysical sensing in the open ocean is both costly and technically challenging. Here we developed a novel distributed fiber optic sensing technique that employs microwave modulation for phase measurement in signals returned from submarine repeaters.
Meichen Liu +6 more
wiley +1 more source
A Northeast‐Dipping Zone of Low‐Frequency Earthquakes at the Southern Edge of Cascadia Subduction
Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.Abstract Tectonic tremor monitoring occasionally detects events in an anomalous zone in southern Cascadia, 50–100 km west of the main tremor band, near the expected southern edge of the subducting Gorda slab at the Mendocino triple junction. To investigate the geometry and temporal behavior of this tremor, we examine its constituent low‐frequency ...
David R. Shelly +3 more
wiley +1 more source
Monitoring earthquakes with gravity meters
Geodesy and Geodynamics, 2011 Seismic waves from a magnitude 8.3 earthquake in Japan were consistently recorded by five nearly identical gPhone gravity meters in Colorado. Good correlation was also found in the response of two different types of gravity meters and a standard ...
T.M. Niebauer +3 more
doaj +1 more source