A5051169493- earthquake and tectonic studies
- Economic and Social Issues
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Seismic Waves and Analysis
- Sustainability and Climate Change Governance
- Seismology and Earthquake Studies
- Geological Studies and Exploration
- Climate Change Policy and Economics
- Environmental Science and Technology
- Environmental and Social Impact Assessments
- Methane Hydrates and Related Phenomena
- Innovation, Technology, and Society
- Public Administration and Political Analysis
- Sustainable Development and Environmental Policy
- Physics and Engineering Research Articles
- Seismic Performance and Analysis
- Seismic Imaging and Inversion Techniques
- Earthquake Detection and Analysis
- Regulation and Compliance Studies
- Corporate Social Responsibility and Sustainability
- Geophysics and Sensor Technology
- Flood Risk Assessment and Management
- Renewable Energy and Sustainability
- Evaluation and Performance Assessment
Freie Universität Berlin
2012-2024
Leibniz Centre for Agricultural Landscape Research
2024
Lamont-Doherty Earth Observatory
1992-2022
Columbia University
1991-2022
Poliklinik für Zahnärztliche Prothetik
2014
Augsburg University
2014
University of Augsburg
2014
Heidelberg University
2014
Technische Universität Dresden
2002
California Department of Conservation
1986
Abstract We compare various site-response estimation techniques using after-shock data of the 1989 Loma Prieta earthquake collected in Oakland, California. Because recent interest comparing results from weak and strong motion (to infer any nonlinearity) between direct S coda waves, we pay particular attention to uncertainties. First, sediment bedrock spectral-ratio estimates pairs sites are compared with those obtained generalized-inversion approaches where source site effects multiply...
Both historical (noninstrumental) and modern (instrumental) data are compiled critically reviewed to document the seismicity of Pakistan, Afghanistan, northwestern India, southeastern Iran, neighboring areas. Earthquakes occurring between 1914 1965 systematically relocated magnitudes determined for these events when possible. For some larger earthquakes, in both times, orientation length rupture zone, an approximate value seismic moment, estimated. The usefulness documented locate sites...
For over thirty years, attempts have been made to gain information about sediment amplification during earthquakes from observations of ambient seismic noise. While the results several feasibility studies encouraging, theoretical support for technique is scant. We present a model response sedimentary layers The noise sources are modeled as random distribution (in time and space) point forces located on Earth's free surface. This applied site where observed spectral ratios, relative rock...
The Shumagin seismic gap, a segment of the plate boundary along eastern Aleutian arc, has not ruptured during great earthquake since at least 1899–1903. Because 77 years have elapsed Gap last in and repeat times for 1938 rupture zone part are estimated to be 50 90 years, high probability exists occur within next one two decades. Reconsideration zones earthquakes 1938, 1946, 1948 suggests that those events did break interplate beneath Islands. Thus, gap extends from western end 1946. These...
The seismicity of the northwestern Himalayan syntaxial bend and geologically complex area to west, between Hazara thrust system (HTS) higher mountains Indus‐Kohistan, is examined in a wider tectonic context by using data from about 1,800 microearthquakes. microearthquake were obtained telemetered seismic network northern Pakistan centered at Tarbela dam on Indus River collected during an 11‐month period prior impounding reservoir. observed indicates that branch main boundary (MBT) traverses...
The 5000 km long Queen Charlotte‐Alaska‐Aleutian seismic zone is subdivided into 17 unequally sized segments. Their boundaries are delineated based on the prior distribution of large and great earthquakes. segments chosen to represent areas likely be ruptured by “characteristic” This term usually implies repeated breakage a plate boundary segment either or earthquake, whose source dimensions remain consistent from cycle cycle. definition does not exclude possibility that occasionally...
The article discusses the role of nation state in stimulating lead markets for green innovations. It is often feared that loses its capacity action because economic and political globalization. This rejects this hypothesis. argues empirical research on actual environmental policies reveals it most states pioneer new approaches, push advances policy, serve as regional starting points ‘green’ technologies. innovation diffusion technologies their support through national bear potential a...
Over the last 20 years, policy appraisal has emerged as a popular topic for discussion amongst policy-makers and academics alike. Much research effort been devoted to developing tools techniques inform activities, but there been, until recently, distinct paucity of on what might be termed 'policy politics' appraisal. This is surprising, since undoubtedly an important site political behaviour, with its own institutions, instruments actors. paper takes stock recent appraisal, draws out some...
Based on 13 new fault plane solutions and published seismological, geological, geophysical data, we interpret the deformation along Pacific‐North American plate margin in eastern Gulf of Alaska. Three major tectonic units can be distinguished: (1) North plate, (2) Pacific (3) a belt mobile borderland terranes. The moves NNW direction at rates about 6 cm/yr relation to plate. That motion results mostly right‐lateral strike slip Queen Charlotte‐Fairweather system, well‐known observation. A...
Abstract : It is the purpose of this study to present a basic, computer-oriented method tracing seismic rays, either for P or S waves, propagating through laterally heterogeneous spherical earth. This especially designed consider class lateral heterogeneities related sea-floor spreading and global tectonics, e.g., deep structure beneath mid-oceanic ridges island arcs, sources sinks, respectively, in system drifting lithospheric plates.
For the integration of environmental concerns into sectoral policies, two approaches can be distinguished: horizontal delegates responsibility mainly to departments. Vertical makes departments responsible for themselves and labeled as "governmental self-regulation". Various instruments have been developed make operational. This article provides a framework assessing conditions use such instruments. Data on their application in 29 OECD countries is presented. Tools vertical are not widely...
We compute probabilities for future great earthquakes in the Aleutian arc. Probability distributions are fitted to recurrence periods of events (M w ≥ 7.8) since 1788. Given a probability distribution and date last earthquake each arc segment, time‐dependent conditional determined interest. obtain next two decades high (99 30%) Shumagin, Yakataga, Unalaska Kommandorski seismic gaps. These higher than any other assessed region U.S. believed be capable earthquakes. Low (17 9%) found segments...
Abstract We have used portable 5-sec period seismometers to record ambient noise across a glacially cut valley filled with unconsolidated Holocene sediments. The valley, located in Flushing Meadows, New York City, is surrounded by densely populated urban environment. Microtremors were recorded at several sites on and adjacent the valley. While some raw spectra of site microtremors exhibit no predominant peaks, spectral ratios taken respect recordings made reference station outside show sharp...
Plate subduction beneath the 1500‐km‐long segment of eastern Aleutian arc between Kodiak and Atka islands (154°W 176°W longitude) is studied with observations from teleseismic data. The primary data base consists hypocenters earthquakes (for period 1965–1975), carefully selected bulletins International Seismological Centre, 44 new focal mechanism solutions. principal results this study are that intermediate‐depth in Aleutians appear to define a weakly developed double seismic zone at depths...
Hazards and the built environment: attaining built-in resilience, edited by Lee Bosher, Routledge, 2008, 382 pp., US$68.95 (Paperback), ISBN 978-0-415-42730-2 This is an ambitious book well ...
4.1 Background 4.2 Methods 4.3 Results and discussion 4.4 Conclusions recommendations Storm surge is an increase in water level caused by winds low atmospheric pressure combines with tides to form the total elevation during a storm, also known as storm tide or stillwater elevation. are among world's most costly deadly hazards, bringing floodwaters waves capable of damaging disabling infrastructure, homes, property, well threatening human life health. Sea rise New York metropolitan region has...