نتایج جستجو برای: seismicity models

تعداد نتایج: 911075  

Journal: :Physical review letters 2003
Mirko S Mega Paolo Allegrini Paolo Grigolini Vito Latora Luigi Palatella Andrea Rapisarda Sergio Vinciguerra

We study the statistical properties of time distribution of seismicity in California by means of a new method of analysis, the diffusion entropy. We find that the distribution of time intervals between a large earthquake (the main shock of a given seismic sequence) and the next one does not obey Poisson statistics, as assumed by the current models. We prove that this distribution is an inverse ...

Journal: :Perceptual and motor skills 1989
J S Derr M A Persinger

Temporal analyses were completed between the occurrence of intense displays of exotic luminous phenomena over a church in Zeitoun (Egypt) during the years 1968 through 1969 and regional seismicity. These phenomena, viewed by thousands of onlookers, began one year before an unprecedented increase (factor of 10) in seismic activity about 400 km to the southeast. Monthly analyses also demonstrated...

1998
Jean-Bernard Minster Nadya Williams

The systematic testing of intermediate-term earthquake prediction algorithms is faced with the difficulties of (1) the limited time spanned by instrumental catalogs of seismicity in most areas of the world, and (2) the relative arbitrariness of the selection of the region and time interval over which to apply the algorithm. We offer a systematic method which uses worldwide seismicity to compute...

1999
Felix Waldhauser William L. Ellsworth Alex Cole

A high-resolution relative earthquake location procedure is used to image the fine-scale seismicity structure of the northern Hayward fault, California. The seismicity defines a narrow, near-vertical fault zone containing horizontal alignments of hypocenters extending along the fault zone. The lineations persist over the 15-year observation interval, implying the localization of conditions on t...

1999
R. S. White

I discuss thermal, rheological and compositional definitions of the Earth’s lithosphere and describe the data that can be brought to bear in refining these definitions. Models of the behaviour of the lithosphere are useful in describing such diverse effects as continental basin subsidence, the flexural response to imposed loads such as seamounts or sediment accumulations, the partial melting of...

Journal: :Geophysical Research Letters 2023

Abstract Microseismic data acquired during hydraulic stimulations is routinely used to characterize fracture (HF) propagation away from a wellbore. When the include induced seismicity (IS) related fault slip, separating HF‐related and IS‐related events essential for HF treatment optimization IS mitigation. Linear non‐linear analytical diffusivity models can be interpret microseismic quantify of...

2009
ANDREW DANIEL SCHNEIDER Katharine Cashman Andrew Daniel Schneider Alan Rempel John Pallister Naomi Mecham

Different models have been proposed for the "drumbeat" earthquakes that accompanied recent eruptive behavior at Mount St. Helens. Debate continues as to whether seismicity is related to brittle failure during the extrusion of solid dacite spines or is the result of hydrothermal fluids interacting with a crack buried in the volcanic edifice. My model predictions of steady-state conduit flow conf...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

مدلهای گارچ در فضاهای هیلبرت پایان نامه حاضر شامل دو بخش می باشد. در قسمت اول مدلهای اتورگرسیو تعمیم یافته مشروط به ناهمگنی واریانس در فضاهای هیلبرت را معرفی، مفاهیم ریاضی مورد نیاز در تحلیل این مدلها در دامنه زمان را مطرح کرده و آنها را مورد بررسی قرار می دهیم. بر اساس پیشرفتهایی که اخیرا در زمینه تئوری داده های تابعی و آماره های عملگری ایجاد شده است، فرآیندهایی که دارای مقادیر در فضاهای ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید