Results 81 to 90 of about 2,135 (210)

Pregled nedavnih mjerenja mikroseizmničkoga nemira u Hrvatskoj na otvorenom terenu i u zgradama [PDF]

, 2011
The paper describes some recent applications of the measurements of ambient vibrations (microseismic noise) in Croatia. They include free-field measurements, as well as those done within buildings. Data obtained in the field at the studied localities are
Marijan Herak
core   +1 more source

Evaluating Seismic Ambient Noise Techniques for Detecting Ice‐Bearing Rocks on the Moon

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract One of the primary objectives of upcoming lunar missions is to locate ice‐bearing rocks at the South Pole. While evidence for their presence exists, the exact distribution and quantity remain uncertain. In this study, we evaluate the potential of seismic ambient noise techniques—including seismic interferometry, H/V spectral ratios ...
S. Keil, M. Schimmel, H. Igel
wiley   +1 more source

New interpretation methods for rockhead determination using passive seismic surface wave data: Insights from Singapore

Journal of Rock Mechanics and Geotechnical Engineering
Accurate determination of rockhead is crucial for underground construction. Traditionally, borehole data are mainly used for this purpose. However, borehole drilling is costly, time-consuming, and sparsely distributed.
Yu Zhang, Jian Chu, Shifan Wu, Kiefer Chiam   +3 more
doaj   +1 more source

Systematic assessment of nonlinear soil behavior at KiK‐net sites in Japan: Thresholds and controlling site factors

Earthquake Spectra, Volume 41, Issue 3, Page 2278-2310, August 2025.
We address two open questions concerning nonlinear soil behavior in a seismic hazard and risk context; (1) which site proxies can be used to predict and map nonlinear site amplification? (2) At which level of ground‐motion intensity should such nonlinear models be considered?
Karina Loviknes, Paolo Bergamo, Donat Fäh, Fabrice Cotton   +3 more
wiley   +1 more source

Site characterization of Sikkim Himalaya using HVSR

Seismica
The northeastern state of Sikkim lying in central segment of the Himalayan orogen is a seismically active region which was plagued by the recent 2011 Mw6.9 earthquake. Analysis of local earthquakes recorded at the recently deployed seismic network of 27
Mita Uthaman, Chandrani Singh, Arun Singh   +2 more
doaj   +1 more source

Local site effects evaluation for Aliağa/İzmir using HVSR (Nakamura technique) and MASW methods

Natural Hazards, 2017
The site effect plays very important role for planning design of structures and estimating seismic damage of existing structures, especially in seismicity active regions. Aliaga, located in the northern region of the Izmir City, is high seismically active region in western Turkey. We identified the dynamic properties of shallow soil for Aliaga district
Pamuk, Eren, Ozdag, Ozkan Cevdet, Tuncel, Aykut, Ozyalin, Senol, Akgun, Mustafa   +4 more
openaire   +3 more sources

Geophysical imaging of the subsurface seismic structure of the Chestnut Hill Reservoir earth embankment dam (Massachusetts)

Near Surface Geophysics, Volume 23, Issue 2, Page 105-120, April 2025.
Abstract Degradation within a manmade earth embankment structure is often unobservable from the surface. In order to evaluate the structural integrity of earth embankment levees and dams and identify subsurface zones of weakness that may result in the future failures of such structures, various geophysical methods have been proposed as effective ...
Steven J. Maniscalco, John E. Ebel
wiley   +1 more source

Seismic Structure of the Mid to Upper Crust at the Santorini‐Kolumbo Magma System From Joint Earthquake and Active Source Vp‐Vs Tomography

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.
Abstract Santorini volcano has a history of caldera‐forming eruptions, most recently in the Late Bronze Age, at 3.4 kya, and remains volcanically active. The Kolumbo submarine volcano, located 7 km to the northeast of Santorini, erupted in 1650 AD in a deadly phreatomagmatic eruption.
R. S. Hufstetler, E. E. E. Hooft, D. R. Toomey, B. P. VanderBeek, C. B. Papazachos, N. Chatzis   +5 more
wiley   +1 more source

Sediment Thickness Estimation in Serpong Experimental Power Reactor Site Using HVSR Method

Jurnal Pengembangan Energi Nuklir, 2020
A study about sediment thickness mapping was conducted in Serpong Experimental Power Reactor Site. This reactor is planned to be built in a high seismic activity area. Sediment thickness is one of many factors that could affect the site response. A high sediment deposit could amplify and prolong the earthquake waves.
Theo Alvin Ryanto, Eko Rudi Iswanto, Yuni Indrawati, Abimanyu BW Setiaji, Hadi Suntoko   +4 more
openaire   +2 more sources

Unveiling Cryosphere Dynamics by Distributed Acoustic Sensing and Data‐Driven Hydro‐Thermo Coupled Simulation

Geophysical Research Letters, Volume 52, Issue 2, 28 January 2025.
Abstract As global warming continues, the Earth's cryosphere is experiencing severe degradation. This study leverages a novel combination of distributed acoustic sensing (DAS) and artificial intelligence to monitor and decipher cryospheric dynamics. We have developed an advanced time‐lapse surface wave analysis workflow to capture shear wave velocity ...
Haoyuan Sun, Feng Cheng, Jianghai Xia, Jianbo Guan, Zefeng Li, Jonathan B. Ajo‐Franklin   +5 more
wiley   +1 more source