Results 71 to 80 of about 3,377 (214)
Video camera and seismic monitoring of water bulge explosion at Strokkur Geyser, Iceland
Eruptions of volcanoes and geysers share many fundamental similarities: for example, they are manifestations of Earth’s geothermal energy, involving the pressure-driven expulsion of fluids from the Earth’s interior.
Eva P. S. Eibl +4 more
doaj +1 more source
Frequency Dependent Microseisms Sources: A Case Study in Oregon
Abstract The origin of microseisms—whether from deep‐ocean sources or coastal reflections—has been debated for decades. In this study, we use Distributed Acoustic Sensing (DAS) and Ocean Bottom Seismometer data collected offshore Oregon to investigate microseisms sources across a range of frequency bands. Our results reveal a clear frequency dependence:
Han Xiao +3 more
wiley +1 more source
Monitoring earthquakes with gravity meters
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
A Mercury Pendulum Seismometer [PDF]
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
Abstract Stress‐based postseismic deformation modeling including afterslip and viscoelastic relaxation usually assumes the coseismic slip distribution and the associated stress perturbation as known. However, that assumption biases the postseismic modeling results by the assumptions that underlie the coseismic models.
Z. Zhuo +4 more
wiley +1 more source
Calving Mechanisms Inferred From Observations of Surface Depressions at Helheim Glacier, Greenland
Abstract Dynamical changes at the termini of tidewater glaciers may trigger sustained acceleration, thinning, and retreat, increasing a glacier's contribution to sea level rise. However, processes at the ice‐ocean interface occur across a range of spatial (cm to km) and temporal (minutes to years) scales, making these processes difficult to capture ...
Michael G. Shahin +7 more
wiley +1 more source
In this paper, we comparatively analyze the spectrum and phase characteristics of coseismic response recorded by broadband tiltmeter, strainmeters, and seismometer at the Hubei Huangmei seismic station.
Xiaofen Li, Lingxia Jiang, Suwen Yin
doaj +1 more source
The solar power installation on a new broadband seismometer shelter will greatly be affected by the quality of waveform data. The lower power means a physically smaller footprint and a less costly installation for a new station which must be located far ...
Marzuki Sinambela +4 more
doaj +1 more source
Seismometer calibration by harmonic drive
New Manual of Seismological Observatory Practice 2 (NMSOP2)
Bribach, J., Teupser, C.
openaire +6 more sources
Ionospheric Disturbances During the 4 December 2015, Mt. Etna Eruption
Abstract This study presents the detection and characterization of co‐volcanic ionospheric disturbances (CVIDs) associated with Mt. Etna's large‐scale lava fountain (Italy). Leveraging a dense and proximal GNSS network, we identify local Total Electron Content (TEC) perturbations extending up to ∼ ${\sim} $200 km south/southwest of the vent.
F. Ferrara +7 more
wiley +1 more source

