Results 41 to 50 of about 421,583 (208)
FIREBALL: Instrument pointing and aspect reconstruction [PDF]
, 2010 The Faint Intergalactic Redshifted Emission Balloon (FIREBALL) had its first scientific flight in June 2009. The instrument is a 1 meter class balloon-borne telescope equipped with a vacuum-ultraviolet integral field spectrograph intended to detect ...
Chave, Robert G. +11 more
core +1 more source
Tectonic Implication of the 5th March 2005, Doublet Earthquake in Ilan, Taiwan
Terrestrial, Atmospheric and Oceanic Sciences, 2016 The 5th March 2005 earthquake doublet focal mechanism was determined as strike-slip faulting from Harvard and BATS moment tensor inversion. However, based on first motion polarities, the first shock has a normal focal mechanism (Wu et al. 2008a).
En-Chao Yeh +3 more
doaj +1 more source
Geomatics, Natural Hazards & Risk, 2022 The Palu earthquake, with a magnitude of 7.5, severely devastated the region in Central Sulawesi, Indonesia, but the mechanism of dynamic rupture considering in-situ conditions is not well understood.
Kanghua Zhang +3 more
doaj +1 more source
A Comparative Study of the Sumatran Subduction-Zone Earthquakes of 1935 and 1984 [PDF]
, 2002 A M_s 7.7 earthquake struck the western, equatorial coast of Sumatra in December 1935. It was the largest event in the region since the two devastating giant earthquakes of 1833 and 1861.
Helmberger, Don +3 more
core +1 more source
Dizhen xuebao, 2023 基于四川省威远地区密集流动台站从2019年12月1日至2020年6月30日期间收集到的42个ML3.0—4.5中小地震事件，采用Hypo2000定位法进行精定位，并利用HASH （Hardebeck & Shearer）法反演得到其中31次地震的震源机制解，之后利用阻尼区域应力反演方法计算了研究区的应力场参数。结果表明：中小地震主要分布在威远背斜南翼SSE向墨林场断层的两侧，震源深度集中在10 km以内，均为浅源地震；震源机制解类型以逆冲型为主，断层错动类型较为复杂，根据震源机制解结果 ...
Mengxue Yu +3 more
doaj +1 more source
Stress inversion from the focal mechanism solution of Bam earthquake aftershocks (Iran, 2003)
Journal of Geophysics and Engineering, 2010 Stress determination can be performed by different inversion techniques using fault-slip data resulted from focal mechanism solutions obtained from earthquake shock records. Inversion methods, explicitly or implicitly, use the object function that evaluates the fitness of some assumed stress state to the fault-slip data.
V Fattahpour, M Moosavi
openaire +1 more source
Anomalous stress diffusion in earthquake triggering: Correlation length, time dependence, and directionality [PDF]
, 2003 It has been recently suggested that moderate and large earthquakes can be triggered by similarly sized events at very long range. Here we study the main characteristics of earthquake triggering by determining its correlation length, time dependence, and ...
Atkinson +31 more
core +1 more source
Dizhen xuebao, 2021 震后应急工作中地震影响场的判定和快速给出较为合理的地震烈度分布图，是震后应急救援的重要依据，对于政府了解灾情、部署工作以及估算灾害损失都尤为重要，所以本文以此为研究目的，力求震后快速给出准确的地震烈度分布图。本文收集整理了河北地区中强地震的实际等震线图，将其与加入了震源机制解影响参数的烈度衰减关系计算得到的理论等震线图进行对比。结果显示：随着震级的增大，由衰减关系计算得到的等震线图与实际地震等震线图在高烈度区（≥Ⅶ度）相似度更高。另外，根据震后24小时内余震频度的空间变化，对极震区理论等震线修正后 ...
Lina Sun +3 more
doaj +1 more source
Focal Mechanism and Rupture Process of 2004 Alhoceima (Morocco, Mw=6.2) Earthquake from Teleseismic and Regional Broad-Band Data. [PDF]
, 2004 We have study the focal mechanism of the 2004 Alhoceima (Morocco, Mw=6.2) earthquake using teleseismic and regional broad-band data. The solution obtained shows strike slip motion with planes striking respectively on NNE-SSW and WNW-ESE direction and ...
Bezzeghoud, M +5 more
core
Slip in the 2010–2011 Canterbury earthquakes, New Zealand [PDF]
, 2012 The 3rd September 2010 Mw 7.1 Darfield and 21st February 2011 Mw 6.3 Christchurch (New Zealand) earthquakes occurred on previously unknown faults. We use InSAR ground displacements, SAR amplitude offsets, field mapping, aerial photographs, satellite ...
Elliott, J.R. +7 more
core +2 more sources