Results 131 to 140 of about 95,361 (334)

Frequency dependent attenuation of seismic waves for Delhi and surrounding area, India

Annals of Geophysics, 2015
The attenuation properties of Delhi & surrounding region have been investigated using 62 local earthquakes recorded at nine stations. The frequency dependent quality factors Qa (using P-waves) and Qb (using S-waves) have been determined using the ...
Babita Sharma, Prasantha Chingtham, Anup K. Sutar, Sumer Chopra, Haldhar P. Shukla   +4 more
doaj   +1 more source

Coronal Loop Seismology Using Standing Kink Oscillations With a Lookup Table

Frontiers in Astronomy and Space Sciences, 2019
The transverse structure of coronal loops plays a key role in the physics but the small transverse scales can be difficult to observe directly. For wider loops the density profile may be estimated by forward modelling of the transverse intensity profile.
D. Pascoe, A. Hood, T. Van Doorsselaere
semanticscholar   +1 more source

Mapping Spatiotemporal Variations of Near‐Surface Seismic Velocity to Monitor Groundwater in Central Oklahoma

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Global climate changes have intensified drought events, necessitating accurate groundwater monitoring. Traditional methods often lack the spatial and temporal resolution to track groundwater variations. This study calculates instantaneous travel‐time shifts, dt(t) $dt(t)$, from ambient noise cross‐correlation functions in central Oklahoma and ...
Shuo Zhang, Bingxu Luo, Yujie Zheng, David Lumley, Mrinal K. Sen, Hejun Zhu   +5 more
wiley   +1 more source

Building damages in Deyang city by the 2008 Wenchuan earthquake

Geodesy and Geodynamics, 2011
The Ms8.0 Wenchuan earthquake in 2008 caused huge casualties, economic losses, and building damages, which are analyzed. The results show that damages of houses designed according to the current seismic code were significantly smaller than those without ...
Wang Qiuliang, Li Jinggang, Liao Wulin, Zhang Lifen, Qin Xiaojun   +4 more
doaj   +1 more source

Phase Relations in the MgSiO3 System Associated With Hot Mantle Upwelling Across the 660 km Depth

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract The phase transformations of MgSiO3 bridgmanite control the structure, dynamics and chemistry of the Earth's mantle. Formation of bridgmanite occurs at a depth of about 660 km causing the strong and abrupt seismic discontinuity. Previous experimental studies have revealed that this discontinuity is caused by ringwoodite dissociation in the ...
Artem Chanyshev, Narangoo Purevjav, Dmitry Bondar, Hu Tang, Hongzhan Fei, Lin Wang, Fei Wang, Eun Jeong Kim, Dan Liu, Takayuki Ishii, Shrikant Bhat, Robert Farla, Tomoo Katsura   +12 more
wiley   +1 more source

Ionospheric disturbances around the time of the Ms7.0 Lushan earthquake

Geodesy and Geodynamics, 2013
Variations of Vertical Total Electron Content (VTEC) in the ionosphere are investigated around the time of the Ms7. 0 Lushan earthquake. A time-series analysis shows an anomalous VTEC increase 15 days before as well as some anomalous VTEC decreases 5 ...
Zhou Yiyan, Wu Yun, Yang Jian, Zhu Fuying, Zhao Bin   +4 more
doaj   +1 more source

Seismology - Responsibilities and requirements of a growing science. Part 2 - problems and prospects [PDF]

Theoretical and applied seismology, earthquake engineering, earth structure, industrial uses, facilities, and underground nuclear explosion ...

core   +1 more source

Scientific Rationale and Requirements for a Global Seismic Network on Mars [PDF]

, 1991
Following a brief overview of the mission concepts for a Mars Global Network Mission as of the time of the workshop, we present the principal scientific objectives to be achieved by a Mars seismic network.
Anderson, Don L., Banerdt, W. Bruce, Butler, Rhett G., Davis, Paul M., Duennebier, Frederick K., Nakamura, Yosio, Okal, Emile A., Phillips, Roger J., Solomon, Sean C.   +8 more
core   +1 more source

Exploring Generation Mechanisms of Atmospheric Gravity Waves Arising in Large Volcanic Eruptions

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Large volcanic eruptions produce various atmospheric wave perturbations. One of these wave manifestations is atmospheric gravity waves (AGWs), which can be observed through remote sensing satellite measurements. Based on multisensory instruments on board Aqua, Suomi NPP, and Thermosphere Ionosphere Mesosphere Energetics Dynamics satellites, we
Satyamesh H. Tiwari, Mala S. Bagiya, Subrata Kundu, S. Gurubaran, A. P. Dimri   +4 more
wiley   +1 more source

EU-NICE, Eurasian University Network for International Cooperation in Earthquakes [PDF]

, 2012
Despite the remarkable scientific advancements of earthquake engineering and seismology in many countries, seismic risk is still growing at a high rate in the world’s most vulnerable communities.
Braga, F., Capelli, M., Cecchini, A., Dixit, A., Dost-Safi, M., Faggella, M., Gigliotti, R., Kumar, H., Laterza, M., Limkatanyu, S., Lodi, S., Lukkunaprasit, P., Monti, G., Rahman, Z., Salvatore, W., Spacone, E., Subedi, J., Triantafillou, T., Varum, H., Xiao, Y., Yingmin, L.   +20 more
core   +1 more source