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2 edition of Crustal loading and induced seismicity at the Yacambu Reservoir, Venezuela found in the catalog.

Crustal loading and induced seismicity at the Yacambu Reservoir, Venezuela

C. H. Scholz

Crustal loading and induced seismicity at the Yacambu Reservoir, Venezuela

annual technical report

by C. H. Scholz

  • 186 Want to read
  • 36 Currently reading

Published by Lamont-Doherty Geological Observatory of] Columbia University in [Palisades, N.Y .
Written in

    Subjects:
  • Earthquakes -- Venezuela -- Yacambu Reservoir Region.,
  • Induced seismicity -- Venezuela -- Yacambu Reservoir Region.,
  • Hydraulic structures -- Earthquake effects.,
  • Dams -- Environmental aspects -- Venezuela -- Yacambu Reservoir.

  • Edition Notes

    Statementprincipal investigators, C.H. Scholz, Roger Bilham and David Simpson.
    ContributionsBilham, R., Simpson, David W., Geological Survey (U.S.), Lamont-Doherty Geological Observatory.
    The Physical Object
    Pagination23 leaves, 10 leaves of plates :
    Number of Pages23
    ID Numbers
    Open LibraryOL22435716M

    A review of case histories of reservoir-induced seismicity (RIS) in China shows that it mainly occurs in granitic and karst terranes. Seismicity in granitic terranes is mainly associated with pore pressure diffusion whereas in karst terranes the chemical effect of water appears to play a major role in triggering RIS. In view of the characteristic features of RIS in China, we can expect Cited by: You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.,,, Free ebooks since

    Induced seismicity refers to typically minor earthquakes and tremors that are caused by human activity that alters the stresses and strains on the Earth's induced seismicity is of a low magnitude. A few sites regularly have larger quakes, such as The Geysers geothermal plant in California which averaged two M4 events and 15 M3 events every year from to The phenomenon of dam-triggered earthquakes is known as reservoir-induced seismicity. It's not well-understood, but basically what happens is this: Advertisement. When a dam is built and the reservoir filled with water, the amount of pressure exerted on the earth in that area changes dramatically. When the water level of a reservoir is raised Author: Julia Layton.

    The pattern of historical ground deformation, seismicity, and crustal structure near Medicine Lake volcano illustrates a close relation between magmatism and tectonism near the margin of the Cascade volcanic chain and the Basin and Range tectonic province. Subsidence occurs mainly by aseismic creep within 25km of the summit, where the crust has been heated and weakened by intrusions, and by. Induced Earthquake Bibliography: Reservoir Induced Earthquakes. Warning to non-scientists. R. D. Adams, "Statistical Studies of Earthquakes Associated with Lake Benmore, New Zealand," 8 Engineering Geology ().; PEI Ding Ahu, "Characteristics of Small Earthquakes and Stress Field: A Study of Reservoir Induced Seismicity in Quebec," 11 Soil Dynamics & Earthquake Eng. ().


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Crustal loading and induced seismicity at the Yacambu Reservoir, Venezuela by C. H. Scholz Download PDF EPUB FB2

CRUSTAL LOADING AND INDUCED SEISMICITY AT THE YACAMBU RESERVOIR, VENEZUELA C.H. Scholz, Roger Bilham and David Simpson Supported by the EARTHQUAKE HAZARDS REDUCTION PROGRAM OPEN-FILE NO CRUSTAL LOADING AND INDUCED SEISMICITY AT THE YACAMBU RESERVOIR, VENEZUELA C.H.

Scholz, Roger Bilham and David SimpsonAuthor: C.H. Scholz, Roger Bilham, David Simpson. B.F. Howell Jr., in International Geophysics, Bock, Günter (–) German geophysicist who died prematurely in a plane crash on Nov.

6, He listed his seismological interests as (1) development of models on reservoir-induced seismicity, (2) investigation of the effect of subducting lithosphere on travel times of body waves, (3) study of the Earth's mantle using body waves and. The small stress variations induced by hydrological forcing add to the long‐term tectonic loading and help to illuminate the behavior of the Irpinia Fault Zone which, on 23 Novemberproduced the largest Italian event in the last years (magnitude ).Cited by: 2.

Reservoir-induced seismicity: A review Lisa Johann, Carsten Dinske, and Serge Shapiro Freie Universität Berlin, Geophysics, Earth Sciences, Berlin, Germany (@) Within the last century the number of induced seismic events has.

The Crustal Structure and Seismicity of Eastern Venezuela: Authors: Schmitz, M Eastern Venezuela is characterized by a moderate to high seismicity, evidenced recently by the Cariaco earthquake located on the El Pilar Fault, a right lateral strike slip fault which marks the plate boundary between the Caribbean and South-American plates.

The book investigates the geology, hydrology, and seismicity of seismic reservoir sites, including three cases of induced seismicity after fluid injections in deep wells. A possible correlation between the reservoir level or volume of the injected fluid and the tremor frequency exists.

LABORATORY SIMULATION OF RESERVOIR-INDUCED SEISMICITY Winnie (Wai Lai) Ying Doctor of Philosophy Graduate Department of Civil Engineering University of Toronto Abstract Pore pressure exists ubiquitously in the Earth’s subsurface and very often exhibits a cyclic loading on pre-existing faults due to seasonal and tidal changes, as well as theCited by: 1.

Vol.The Nature of Reservoir-induced Seismicity In the case of protracted seismicity, modeling suggests that the pore pressure increase that causes the seismicity, is related to the frequency and amplitude of lake-level changes (ROELOFFS, ). Peak changes in pore pressures occur directly beneath the lake and decrease away from it.

reservoir induced seismicity has become a critical point of discussion. A detailed understanding of the physical processes associated with reservoir induced seismicity is required for assessing and (eventually) mitigating the seismic risk.

We present a hydro-mechanical model describing fluid injection induced seismicity. The model is based on theCited by: 3. Issue 21 Babar, A. 13 data filtering out of the earthquake database for the estimation of seismic energy release and b-value. These circular regions have radii equal to one degree (o o≈ km), half degree ( ≈ 55 km) and 20 km, henceforward referred to as o radial zone, radial zone and 20 km radial zone, respectively.

The criterion of defining a o radial zone is adopted File Size: 1MB. — A compilation of 16 cases of reservoir-induced seismicity in Brazil is presented with maximum magnitudes ranging from M L to m b.

The compilation includes: location of the main. In most cases of reservoir-induced seismicity, seismicity follows the impoundment, large lake-level changes, or filling at a later time above the highest water level achieved until then.

We classify this as initial seismicity. This "initial seismicity" is ascribable to the coupled poroelastic response of the reservoir to initial filling or water level by: In areas of high strain accumulation and high levels of natural seismicity, the stress changes induced by the reservoir will be small compared to natural variations.

In aseismic areas, with low strain accumulation, the reservoir-induced stresses may be insufficient Cited by: We propose that contemporary subsidence, seismicity, and faulting are caused by (1) loading of the crust by more than km 3 of erupted products plus a large volume of mafic intrusives; (2) east‐west extension in the western Basin and Range province; and, to a lesser extent, (3) crystallization or withdrawal of magma beneath the volcano Cited by: Microseismicity in an exploited reservoir for an oil field NORSAR Amid the recent hubbub surrounding whether Zipingpu Dam may have triggered the disastrous Sichuan earthquake in Mayit's important to clear up a few misconceptions about Reservoir-Induced Seismicity (RIS): convincing correlation has yet been demonstrated between.

The induced seismicity began when the reservoir pressure had declined by approx. 30 MPa. Repeated leveling over the field shows localized subsidence reaching a maximum of 60 mm in Author: S.

Guha. Seismic noise interferometry is an exciting technique for studying volcanoes, providing a continuous measurement of seismic velocity changes (dv / v), which are sensitive to magmatic processes that affect the surrounding crust.

However, understanding the exact mechanisms causing changes in dv / v is often difficult. We present dv / v measurements over 10 years in central Iceland, Author: Clare Donaldson, T. Winder, Corentin Caudron, R.S. White. The relationship between large reservoirs and seismicity 08 February Following the 12 May Wenchuan earthquake in China, Chen Houqun, Xu Zeping and Li Ming discuss the question of whether large reservoirs can trigger strong earthquakes The issue of reservoir-triggered seismicity (RTS) received a great deal of attention.

SEISMICITY AND TECTONICS OF WESTERN VENEZUELA centers (Dewey, ), the 90 per cent confidence ellipses were reliable indicators of the precision of epicentral determination when the depths of the sources were fixed, in spite of the obvious non-normality of the distribution of P-wave residuals.

However, inFile Size: 4MB. Seismic evidence for a crustal magma reservoir beneath the upper east rift zone of Kilauea volcano, Hawaii. Reservoir-induced seismicity (RIS) was observed, following the impoundment in of the Danjiangkou Reservoir in Henan and Hubei provinces in central China.

Starting with low-level seismicity, the magnitude increased with increasing lake levels, thereafter culminating in a damaging M earthquake in November.Experimental study of reservoir seismicity using different injection strategies.

Corentin Noël. 1 *, Lucas Pimienta. 1, Marie Violay. 1. 1. LEMR ENAC EPFL, Lausanne, Switzerland * @ Summary. This experimental work aims to understand the effect of fluid pressure variations on the long-term integrity of a porous reservoir.J. Pavan Kumar et al.: The relation between seismicity and water level changes 01 01 01 01 20 0 0 31 31 31 31 30 30 30 20 0 7 30 29 Water level (m) 0 10 20 30 40 50 60 No.

of Earthquakes Fig The Koyna reservoir water levels and the seismicity of the region from to Figure 6 shows the cross correlation.