Author: David P. Hill
Publisher: Geological Survey (USGS)
ISBN:
Category : Science
Languages : en
Pages : 68

Get Book Here

Book Description

Author: Robert L. Bettinger
Publisher:
ISBN:
Category : California
Languages : en
Pages : 106

Get Book Here

Book Description

Author: U.S. Department of the Interior
Publisher: Createspace Independent Publishing Platform
ISBN: 9781495955518
Category : Reference
Languages : en
Pages : 150

Get Book Here

Book Description
On May 25-27, 1980, Long Valley caldera was rocked by four M = 6 earthquakes that heralded the onset of a wave of seismic activity within the caldera which has continued through the present. Unrest has taken the form of seismic swarms, uplift of the resurgent dome, and areas of vegetation killed by increased CO2 emissions, all interpreted as resulting from magma injection into different levels beneath the caldera, as well as beneath Mammoth Mountain along the southwest rim of the caldera. Continuing economic development in the Mammoth Lakes area has swelled the local population, increasing the risk to people and property if an eruption were to occur. The U.S. Geological Survey (USGS) has been monitoring geophysical activity in the Long Valley area since the mid-1970s and continues to track the unrest in real time with a sophisticated network of geophysical sensors. Hazards information obtained by this monitoring is provided to local, State, and Federal officials and to the public through the Long Valley Observatory.

Author: Christopher G. Newhall
Publisher:
ISBN:
Category : Calderas
Languages : en
Pages : 528

Get Book Here

Book Description

Author: E. Joan Baldwin
Publisher:
ISBN:
Category : Calderas
Languages : en
Pages : 402

Get Book Here

Book Description

Author: Haruo Sato
Publisher: Springer Science & Business Media
ISBN: 3540896236
Category : Science
Languages : en
Pages : 308

Get Book Here

Book Description
Seismic waves – generated both by natural earthquakes and by man-made sources – have produced an enormous amount of information about the Earth's interior. In classical seismology, the Earth is modeled as a sequence of uniform horizontal layers (or sperical shells) having different elastic properties and one determines these properties from travel times and dispersion of seismic waves. The Earth, however, is not made of horizontally uniform layers, and classic seismic methods can take large-scale inhomogeneities into account. Smaller-scale irregularities, on the other hand, require other methods. Observations of continuous wave trains that follow classic direct S waves, known as coda waves, have shown that there are heterogeneities of random size scattered randomly throughout the layers of the classic seismic model. This book focuses on recent developments in the area of seismic wave propagation and scattering through the randomly heterogeneous structure of the Earth, with emphasis on the lithosphere. The presentation combines information from many sources to present a coherent introduction to the theory of scattering in acoustic and elastic materials and includes analyses of observations using the theoretical methods developed.

Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309454158
Category : Science
Languages : en
Pages : 135

Get Book Here

Book Description
Volcanic eruptions are common, with more than 50 volcanic eruptions in the United States alone in the past 31 years. These eruptions can have devastating economic and social consequences, even at great distances from the volcano. Fortunately many eruptions are preceded by unrest that can be detected using ground, airborne, and spaceborne instruments. Data from these instruments, combined with basic understanding of how volcanoes work, form the basis for forecasting eruptionsâ€"where, when, how big, how long, and the consequences. Accurate forecasts of the likelihood and magnitude of an eruption in a specified timeframe are rooted in a scientific understanding of the processes that govern the storage, ascent, and eruption of magma. Yet our understanding of volcanic systems is incomplete and biased by the limited number of volcanoes and eruption styles observed with advanced instrumentation. Volcanic Eruptions and Their Repose, Unrest, Precursors, and Timing identifies key science questions, research and observation priorities, and approaches for building a volcano science community capable of tackling them. This report presents goals for making major advances in volcano science.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Get Book Here

Book Description

Author: Roy A. Bailey
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 44

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category : Hot springs
Languages : en
Pages : 4

Get Book Here

Book Description