Results 71 to 80 of about 3,377 (214)

Video camera and seismic monitoring of water bulge explosion at Strokkur Geyser, Iceland

open access: yesVolcanica
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

open access: yesGeophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
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

open access: yesGeodesy 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

A Mercury Pendulum Seismometer [PDF]

open access: yesGeophysical 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 First Three Months of Postseismic Deformation of the 29 July 2021 Mw 8.2 Chignik Earthquake Provides New Constraints on the Down‐Dip Extent of Coseismic Slip

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
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

open access: yesJournal of Geophysical Research: Earth Surface, Volume 130, Issue 10, October 2025.
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

Data fusion analysis of broadband deformation observation meters and seismometers in Huangmei, Hubei Province

open access: yes地震科学进展
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

Design of solar power system for the new mini region of broadband seismometer shelter in Tiganderket, Karo, North Sumatera, Indonesia

open access: yesCase Studies in Thermal Engineering, 2020
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

open access: yes, 2009
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

open access: yesEarth and Space Science, Volume 12, Issue 10, October 2025.
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

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