Aftershocks: Are they earthquakes or afterthoughts?
نویسندگان
چکیده
منابع مشابه
Are Aftershocks of Large Californian Earthquakes Diffusing?
We analyze 21 aftershock sequences of California to test for evidence of space-time diffusion. Aftershock diffusion may result from stress diffusion and is also predicted by any mechanism of stress weakening. Here, we test an alternative mechanism to explain aftershock diffusion, based on multiple cascades of triggering. In order to characterize aftershock diffusion, we develop two methods, one...
متن کاملEarthquakes, Aftershocks, and Total Energy
History demonstrates the great value of frequency domain data for understanding the physics of complex processes. The Cumulative Spectral Power (CSP) opens a new window into the study of earthquake evolution [2]. For this purpose, the CSP has a significant advantage over the Power Spectral Density (PSD) from which it is derived by integration. The FFT spectrum used to generate the PSD is inhere...
متن کاملToxic Christmas and New Year Holiday Plants...or Are They?
Background: Poinsettia (Euphorbia pulcherrima), holly (Ilex opaca) and mistletoe (Phoradendron flavescens) adorn homes during the Christmas and New Year holiday season and create the potential for curious children to sample their colorful leaves and enticing berries. This study was aimed to review the American Association of Poison Control Centers National Poison Data System (AAPCC NPDS) to des...
متن کامل“Detached” deep earthquakes: are they really?
We use primarily the generation of acoustic T waves into the ocean by deep seismic sources to investigate the propagation of high-frequency seismic energy from the bottom of subduction zones to the shoreline at the earth’s surface. Conversion from shear waves to oceanic acoustic waves can be used as a proxy for the existence of a continuous slab featuring low anelastic attenuation. With the hel...
متن کاملScale-free networks of earthquakes and aftershocks.
We propose a metric to quantify correlations between earthquakes. The metric consists of a product involving the time interval and spatial distance between two events, as well as the magnitude of the first one. According to this metric, events typically are strongly correlated to only one or a few preceding ones. Thus a classification of events as foreshocks, main shocks, or aftershocks emerges...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 1997
ISSN: 0096-3941
DOI: 10.1029/97eo00306