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Littérature scientifique sur le sujet « Seismological Observatory (New Zealand) »

Auteur : Grafiati

Publié le 25 juillet 2024

Mis à jour le 29 juillet 2024

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Articles de revues sur le sujet "Seismological Observatory (New Zealand)"

Smith, Warwick D. "New Zealand earthquakes in 1989." Bulletin of the New Zealand Society for Earthquake Engineering 23, no. 2 (1990): 97–101. http://dx.doi.org/10.5459/bnzsee.23.2.97-101.

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During 1989 the Seismological Observatory recorded and analysed 9892 earthquakes in the New Zealand region. Preliminary locations and magnitudes are now available for all these events. This is about five times the number usually analysed in previous years, thanks to the new digital recording equipment which is being installed throughout the country. No earthquakes reached magnitude 6 during the year, although one of magnitude 5.9 in Fiordland was close to that figure. This caused intensity MM VI throughout Fiordland, and lower intensities elsewhere in the southern half of the South Island. Earthquakes of magnitude 5 and greater are listed: they indicate an ongoing level of activity commensurate with New Zealand's seismic history and geographic location.

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Dowrick, D. J., and D. A. Rhoades. "Magnitudes of New Zealand earthquakes, 1901-1993." Bulletin of the New Zealand Society for Earthquake Engineering 31, no. 4 (1998): 260–80. http://dx.doi.org/10.5459/bnzsee.31.4.260-280.

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Determinations of surface-wave magnitude (Ms) are made on a consistent basis for 202 selected New Zealand earthquakes over the period 1901-1993, including most post-1942 events with local magnitude not less than 6.0 and centroid depth less than 45 km. These determinations have led to a reassessment of magnitudes and locations of some earlier events in the New Zealand Seismological Observatory Catalogue of local magnitudes (ML), in some cases with substantial revisions. The surface-wave magnitudes are compared with local magnitudes and moment magnitudes (Mw), where available, and the relations between these three variables and centroid depth are examined through regression models. The absence of surface-wave observations for some earthquakes allows an upper limit to be placed on their likely moment magnitudes. The analysis shows that estimates of Mw derived from Ms will have a standard error of about 0.15 and Mw derived from ML a standard error of about 0.3.

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Christensen, Steven A. "Ormond earthquake liquefaction reconnaissance report." Bulletin of the New Zealand Society for Earthquake Engineering 26, no. 3 (1993): 312–28. http://dx.doi.org/10.5459/bnzsee.26.3.312-328.

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On August 10 1993, at 09h 46m UT an earthquake of magnitude (ML) 6.4 occurred near Ormond, a locality to the north west of Gisbome in the North Island of New Zealand. The epicentre of the event was 38.52°S, 177.93°E, and had a focal depth of 48 km (Seismological Observatory, Institute of Geological and Nuclear Sciences Ltd.). Strong motion accelerographs at two sites on sediment in Gisborne recorded peak ground accelerations of 0.22 g at a distance of 20 km from the epicentre, while at Wairoa (80 km to the SW of the epicentre) 0.05 g was recorded, at Tolaga Bay (30 km to the NE of the epicentre) 0.09 g was measured [Pers. Comn. J. Zhou], and strong motion lasted for 5-10 s. Intensity of MMVI was observed in the Ormond area with pockets of MMVII, the later being based in particular on the presence of liquefaction.

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Bormann, P., and E. Bergman. "The New IASPEI Manual of Seismological Observatory Practice." Seismological Research Letters 71, no. 5 (2000): 510–18. http://dx.doi.org/10.1785/gssrl.71.5.510.

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Leather, K., F. Andrews, R. Hall, and W. Orchiston. "Coping with a New Curriculum: The Evolving Schools Program at the Carter Observatory, New Zealand." International Astronomical Union Colloquium 162 (1998): 267–72. http://dx.doi.org/10.1017/s0252921100115222.

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Carter Observatory is the National Observatory of New Zealand and was opened in 1941. For more than ten years the Observatory has maintained an active education program for visiting school groups (see Andrews, 1991), and education now forms one of its four functions. The others relate to astronomical research; public astronomy; and the preservation of New Zealands astronomical heritage (see Orchiston and Dodd, 1995).Since the acquisition of a small Zeiss planetarium and associated visitor centre in 1992, the public astronomy and education programs at the Carter Observatory have witnessed a major expansion (see Orchiston, 1995; Orchiston and Dodd, 1996). A significant contributing factor was the introduction by the government of a new science curriculum into New Zealand schools in 1995 (Science in the New Zealand Curriculum, 1995). “Making Sense of Planet Earth and Beyond” comprises one quarter of this curriculum, and the “Beyond” component is astronomy.

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Kaiser, A., N. Balfour, B. Fry, et al. "The 2016 Kaikōura, New Zealand, Earthquake: Preliminary Seismological Report." Seismological Research Letters 88, no. 3 (2017): 727–39. http://dx.doi.org/10.1785/0220170018.

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Harper, Christopher T. "Teaching Astronomy in New Zealand: The Ward Observatory." International Astronomical Union Colloquium 105 (1990): 354–57. http://dx.doi.org/10.1017/s0252921100087169.

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New Zealand is a self-governed, independent nation, a member of the British Commonwealth, and a major center of Polynesian culture in the south Pacific. The country’s two main islands lie between 34° and 47° south latitude, which places New Zealand south of many well known southern observing sites such as Sydney (Australia), Cape Town (South Africa), and Cordoba (Argentina).The population of 3.5 million people inhabit a country slightly larger than the United Kingdom. The astronomical interests of this small population are nourished by no less than 25 local and regional astronomical societies. Amateur astronomers are active in New Zealand. The Royal Astronomical Society of New Zealand coordinates national interests and hosts international activities.

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Kozlovskaya, Elena, Janne Narkilahti, Jouni Nevalainen, Riitta Hurskainen, and Hanna Silvennoinen. "Seismic observations at the Sodankylä Geophysical Observatory: history, present, and the future." Geoscientific Instrumentation, Methods and Data Systems 5, no. 2 (2016): 365–82. http://dx.doi.org/10.5194/gi-5-365-2016.

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Abstract. Instrumental seismic observations in northern Finland started in the 1950s. They were originally initiated by the Institute of Seismology of the University of Helsinki (ISUH), but the staff of Sodankylä Geophysical Observatory (SGO) and later geophysicists of the University of Oulu (UO) were involved in the development of seismological observations and research in northern Finland from the very beginning. This close cooperation between seismologists and the technical staff of ISUH, UO, and SGO continued in many significant international projects and enabled a high level of seismological research in Finland. In our paper, we present history and current status of seismic observations and seismological research in northern Finland at the UO and SGO. These include both seismic observations at permanent seismic stations and temporary seismic experiments with portable seismic equipment. We describe the present seismic instrumentation and major research topics of the seismic group at SGO and discuss plans for future development of permanent seismological observations and portable seismic instrumentation at SGO as part of the European Plate Observing System (EPOS) research infrastructure. We also present the research topics of the recently organized Laboratory of Applied Seismology, and show examples of seismic observations performed by new seismic equipment located at this laboratory and selected results of time-lapse seismic body wave travel-time tomography using the data of microseismic monitoring in the Pyhäsalmi Mine (northern Finland).

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Robinson, D., S. Dick, R. Stone, and B. Loader. "Black Birch Astrometric Observatory." Symposium - International Astronomical Union 118 (1986): 103. http://dx.doi.org/10.1017/s0074180900151186.

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The seven inch transit circle near Blenheim, New Zealand is intended in conjunction with the six inch circle at Washington, to produce a fundamental catalogue and to re-observe the Southern Reference Stars.

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Bush, Martin. "Mary Proctor and the Cawthron observatory project: a lost history of the Mount Stromlo Observatory." Historical Records of Australian Science 33, no. 1 (2022): 12–22. http://dx.doi.org/10.1071/hr21007.

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Between 1912 and 1914, the Anglo-American popularizer of astronomy, Mary Proctor, undertook a tour of Australia and New Zealand in order to promote a solar observatory project that would ultimately be realized as the Mount Stromlo Observatory in Australia. Proctor came at the request of Walter Geoffrey Duffield, who would go on to be the first Director of the Mt Stromlo Observatory and who saw the need to raise funds and public support for the project. Proctor’s tour was high-profile and nearly saw the realization of a solar observatory as part of the Cawthron Institute at Nelson, New Zealand. Despite this, Proctor’s tour is absent from histories of Mount Stromlo and, until recently, had also been overlooked in New Zealand. I argue that this historical lacuna speaks to a number of historiographical biases: for success over failure; against the role of public activities in scientific work; and downplaying the contribution of women. Mary Proctor was a significant transitional figure in the history of early twentieth-century science-communication who should be more widely recognised.

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Thèses sur le sujet "Seismological Observatory (New Zealand)"

Stafford, Peter James. "Engineering seismological studies and seismic design criteria for the Buller Region, South Island, New Zealand." Thesis, University of Canterbury. Civil Engineering, 2006. http://hdl.handle.net/10092/1078.

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This thesis addresses two fundamental topics in Engineering Seismology; the application of Probabilistic Seismic Hazard Analysis (PSHA) methodology, and the estimation of measures of Strong Ground Motion. These two topics, while being related, are presented as separate sections. In the first section, state-of-the-art PSHA methodologies are applied to various sites in the Buller Region, South Island, New Zealand. These sites are deemed critical to the maintenance of economic stability in the region. A fault-source based seismicity model is developed for the region that is consistent with the governing tectonic loading, and seismic moment release of the region. In attempting to ensure this consistency the apparent anomaly between the rates of activity dictated by deformation throughout the Quaternary, and rates of activity dictated by observed seismicity is addressed. Individual fault source activity is determined following the application of a Bayesian Inference procedure in which observed earthquake events are attributed to causative faults in the study region. The activity of fault sources, in general, is assumed to be governed by bounded power law behaviour. An exception is made for the Alpine Fault which is modelled as a purely characteristic source. The calculation of rates of exceedance of various ground motion indices is made using a combination of Poissonian and time-dependent earthquake occurrence models. The various ground motion indices for which rates of exceedance are determined include peak ground acceleration, ordinates of 5% damped Spectral Acceleration, and Arias Intensity. The total hazard determined for each of these ground motion measures is decomposed using a four dimensional disaggregation procedure. From this disaggregation procedure, design earthquake scenarios are specified for the sites that are considered. The second part of the thesis is concerned with the estimation of ground motion measures that are more informative than the existing scalar measures that are available for use in New Zealand. Models are developed for the prediction of Fourier Amplitude Spectra (FAS) as well as Arias Intensity for use in the New Zealand environment. The FAS model can be used to generate ground motion time histories for use in structural and geotechnical analyses. Arias Intensity has been shown to be an important strong motion measure due to its positive correlation with damage in short period structures as well as its utility in predicting the onset of liquefaction and landslides. The models are based upon the analysis of a dataset of New Zealand Strong Motion records as well as supplementary near field records from major overseas events. While the two measures of ground motion intensity are strongly related, different methods have been adopted in order to develop the models. As part of the methodology used for the FAS model, Monte Carlo simulation coupled with a simple ray tracing procedure is employed to estimate source spectra from various New Zealand earthquakes and, consequently, a magnitude - corner-frequency relationship is obtained. In general, the parameters of the predictive equations are determined using the most state-of-the-art mixed effects regression procedures.

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Livres sur le sujet "Seismological Observatory (New Zealand)"

Bormann, Peter. New manual of seismological observatory practice: (NMSOP). GeoForschungsZentrum, 2002.

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Chapitres de livres sur le sujet "Seismological Observatory (New Zealand)"

Orchiston, Wayne. "Stephen Carkeek, the Wellington Time Ball, and New Zealand’s Oldest Surviving Observatory." In Exploring the History of New Zealand Astronomy. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-22566-1_8.

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Christensen, Nikolas I., and David A. Okaya. "Compressional and shear wave velocities in South Island, New Zealand rocks and their application to the interpretation of seismological models of the New Zealand crust." In A Continental Plate Boundary: Tectonics at South Island, New Zealand. American Geophysical Union, 2007. http://dx.doi.org/10.1029/175gm08.

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Tobin, William, A. C. Gilmore, Alan Wadsworth, and S. R. D. West. "First CCD Observations of Magellanic Cloud Variable Stars from the Mt John University Observatory, New Zealand." In The Magellanic Clouds. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3432-3_100.

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Orchiston, W., B. Carter, R. Dodd, and R. Hall. "Selling our Southern Skies: recent public astronomy developments at the Carter Observatory, New Zealand." In New Trends in Astronomy Teaching. Cambridge University Press, 1998. http://dx.doi.org/10.1017/cbo9780511628993.048.

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Leather, K., F. Andrews, R. Hall, and W. Orchiston. "Coping with a New Curriculum: the evolving schools program at the Carter Observatory, New Zealand." In New Trends in Astronomy Teaching. Cambridge University Press, 1998. http://dx.doi.org/10.1017/cbo9780511628993.058.

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Litherland, Mairi. "History of monitoring induced seismicity in New Mexico." In Recent Seismicity in the Southern Midcontinent, USA: Scientific, Regulatory, and Industry Responses. Geological Society of America, 2023. http://dx.doi.org/10.1130/2023.2559(05).

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ABSTRACT New Mexico has experienced earthquakes throughout its history. Paleoseismic records show numerous Quaternary faults along the Rio Grande Rift, which runs N-S through the state, and events as large as ~M 6.2 have occurred associated with the Socorro magma body in central New Mexico. In recent years, the state has also experienced increased amounts of induced seismicity. Because of its long history of naturally occurring earthquakes, New Mexico began monitoring earthquakes in 1960, primarily around the Socorro area. In 1972, the New Mexico Institute of Mining and Technology established a seismic monitoring network in southeastern New Mexico to monitor seismicity in the region of the proposed Waste Isolation Pilot Plant, a nuclear waste storage facility. A permanent network was established in the 1990s, and it has been expanded and improved several times over the subsequent decades as the seismicity in the region has increased. Currently, the New Mexico Tech Seismological Observatory maintains 17 real-time stations throughout the state of New Mexico, primarily in the Socorro area and in southeastern New Mexico. The University of New Mexico, Los Alamos National Laboratory, U.S. Geological Survey, and the state of Texas maintain additional stations in and around New Mexico. Although the amount of induced seismicity in New Mexico has been to this point relatively moderate, the rapid increase in seismicity, particularly in the Permian Basin in southeastern New Mexico, has given rise to concerns about what the future could hold and led to increased efforts to understand the seismicity. Due to the location of New Mexico’s major oil- and gas-producing basins, several of which span state borders, collaboration with other states and agencies has been essential to studying these problems. Additionally, the long history of seismic monitoring in southeastern New Mexico provides an invaluable resource for understanding the progression of induced seismicity over time. We have only begun to fully utilize the potential of this data set.

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Actes de conférences sur le sujet "Seismological Observatory (New Zealand)"

Henrique Nunes de Oliveira, Luiz, and George Sand França. "A systematic analysis of seismic site effects at the new local to training and test equipment in Seismological Observatory." In International Congress of the Brazilian Geophysical Society&Expogef. Brazilian Geophysical Society, 2021. http://dx.doi.org/10.22564/17cisbgf2021.024.

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Liu, Jiayu, Vishnu Anand Muruganandan, Richard Clare, Maria Cruz Ramirez Trujillo, and Stephen J. Weddell. "A Tip-Tilt Mirror Control System for Partial Image Correction at UC Mount John Observatory." In 2020 35th International Conference on Image and Vision Computing New Zealand (IVCNZ). IEEE, 2020. http://dx.doi.org/10.1109/ivcnz51579.2020.9290543.

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