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  • ENDNOTE?  (5)
  • Fracture  (2)
  • web  (2)
  • 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy  (1)
  • European Seismological Commission  (7)
  • American Chemical Society
  • Institute of Physics
  • 1
    Publication Date: 2017-04-04
    Description: The newer communication tools have changed the relationship between science and society. Internet pervasiveness led citizens to rapidly inform through on line sources, and, on the other hand, to provide themselves information. From an institutional communication' perspective this new sociotechnical landscape forces scientists to rapidly adequate to web population requirements. Questions and comments posted to INGV web sites during the 2009 L'Aquila (Italy) seismic sequence gave significant hints about demand of information. They included: questions concerning possible evolution of the sequence; clarifications about news reported by media, asking for detailed explanations and/or qualified opinions; requests for help in providing information to population; notices about information available on INGV web sites; communication of felt seismic effects. P eople who post questions to INGV institutional web sites are themselves information suppliers, in providing: what they felt, in case of posting macroseismic effects; what they heard about the earthquake from other sources; how they feel (worried, confident, grateful ...); what they know and what they want to know; what they actually understand from the scientific website. From the point of view of a scientific organization, this kind of web-mediated communication is precious in that it can reveal and provide many clues about: 1) public expectations and understanding of on going scientific activities 2) to what extent information dissemination, communication and outreach activities can be considered effective or to which extent they need improvements. A mutual approaching is needed. Seismologists acting as responders during an emergency perform a delicate job: they have to be transparent and make themselves understood; comprehension of scientific information would benefit of appropriate outreach activities carried on during all the time. Consisting the INGV web disseminating system of several institutional and thematic web sites, similar patterns of questions and comments emerge: "network effect", when questions are posted at the end of a navigation session through different web sites, and may not pertain to the content of that specific website; "resonance effect", when more questions about earthquakes are posted soon after a big one. A "welcome" effect is also manifest, as experts providing accurate replies in a timely fashion stimulate web visitors in posting new questions. Case studies of web-mediated communication will be discussed, as experimented by the Institute through the nodes of its web disseminating system.
    Description: Published
    Description: Montpellier (France)
    Description: 5.10. TTC - Sistema web
    Description: open
    Keywords: web ; communication ; information dissemination ; 05. General::05.02. Data dissemination::05.02.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Oral presentation
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  • 2
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    European Seismological Commission
    Publication Date: 2017-04-04
    Description: When dealing with the search of a topic over Internet, Wikipedia is often at the top of the list of sites which can provide the required information. As known, Wikipedia is a free, web-based, collaborative, multilingual encyclopedia supported by a non profit project. Its 15 million articles (over 3.3 million in English) have been written collaboratively by volunteers around the world, and almost all of its articles can be edited by anyone with access to the site. Wikipedia was launched in 2001 and is currently the largest and most popular general reference work on the Internet. Wikipedia began as a complementary project for Nupedia, a free online English language encyclopedia project whose articles were written by experts and reviewed under a formal process. Unfortunately, the times for editing and correcting the articles were too long and Nupedia only published 24 articles before being abandoned. There are several advantages and disadvantages in a project like Wikipedia. Among the first, one should mention the rapidity in publication, the chance to enlarge a primitive article in further steps, the availability to many more people than printed documents, the free character. On the other hand, the many disadvantages are also evident. One over all: the philosophy of publishing an article without review and in successive steps may be the source of misunderstanding and mistakes. The errors contained in an article are in fact removed time after time, however the original form is available to the public for several days, which often coincide with the period of major accesses in the search for information. Moreover, the compilation and review made by non-experts may be not completely correct and exhaustive, but the user (which is not familiar with the topic) has no clue to distinguish a good from a fair article. In this presentation a few examples will be given to show failures and merits of Wikipedia together with some suggestions on how to correctly approach the information contained within. The results are then used for a critical analysis on the relationships between seismologists and the web.
    Description: Published
    Description: Montpellier, France
    Description: 5.9. Formazione e informazione
    Description: open
    Keywords: wikipedia ; web ; education ; information ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Abstract
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  • 3
    Publication Date: 2017-04-04
    Description: The many studies conducted on the Italian area led to several models to explain the present-day structural setting. Some of the most debated questions are the presence or not of continuous subduction and the presence or not of a slab detachment in the northern or in the central part of the Apenninic chain. The absence of a continuous, high velocity body beneath the Apennines has been interpreted by some researchers as an evidence of the detachment of the Apenninic slab. According to this view the Apenninic slab is expected to be inactive whether the Ionian lithosphere subducting underneath Calabria is considered to be on the verge of detaching or just detached. Other researchers however, suggest that a fairly continuous and fast slab exists beneath the Apennines and the Calabrian arc. Different geodynamical models have also been proposed for the Tyrrhenian area considering it as an active or as a passive margin. Our working group has conducted several seismic tomographies in the search of the geometry, size and extension with depth of the subduction under the Italian peninsula. While the images resulting from teleseismic data were clearly showing a subducting slab under the Calabrian arc, they were not conclusive for the rest of the Apennines since they were showing, only in the Northern sector, a likely subduction in the shallower part apparently detached from other high velocities body in the deeper zone. At that stage it was not possible to distinguish between thrust and subduction due to the poor horizontal resolution of the applied methodology. In order to analyze in more details this apparent discrepancy, a new seismic local tomography has been conducted with a very dense grid, the selection of a smaller area to be investigated (limited to the Apennines only) and the addition of new data: all these features contributed to partly improve the results, which cannot anyway extend beyond the maximum depth of seismic events. The main limitation in this kind of experiment is the lack of seismic events deeper than 60-70 km under the northern and central Apennines although, as many authors assume, is not itself an evidence against subduction. Analyzing different cross sections of the enhanced resolution tomography results, we do not see any slab in the northern-central Apennines in the first 80-100 km depth. The downgoing material (Adriatic plate) of this area has a rather low dip angle, as also partly shown by the distribution of the (few) deep seismic events. Along the central and also the northern part of the Apennines there are more overlapping than subducting geometries.
    Description: Published
    Description: Montpellier, France
    Description: 3.3. Geodinamica e struttura dell'interno della Terra
    Description: open
    Keywords: Tomography ; Apennines ; 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Abstract
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  • 4
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    European Seismological Commission
    In:  Seismology in Europe. Papers presented at the XXV General Assembly of ESC, September 9-14, 1996 in Reykjavík, Iceland, Reykjavík, European Seismological Commission, vol. 37, pp. 199-204, (ISBN 0080419208)
    Publication Date: 1996
    Keywords: Structural geology ; Fault plane solution, focal mechanism ; Geol. aspects ; Tectonics ; Roegnvaldsson ; Rognvaldsson ; Gudmundsson ; Stefansson ; BIBTEX? ; ENDNOTE?
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  • 5
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    Institute of Physics
    In:  Professional Paper, Boundary Element Methods. Theory and Application, Bristol, Institute of Physics, vol. 9, no. 16, pp. 1-23, (ISBN 1-4020-1729-4)
    Publication Date: 1986
    Keywords: Stress ; Rock mechanics ; Stress intensity factor ; Boundary Element Method ; Fracture ; ENDNOTE?
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  • 6
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    European Seismological Commission
    In:  Professional Paper, Seismology in Europe. Papers presented at the XXV General Assembly of ESC, September 9-14, 1996 in Reykjavík, Iceland, Reykjavík, European Seismological Commission, vol. 65, no. 16, pp. 193-198, (ISBN: 3-540-23712-7)
    Publication Date: 1996
    Keywords: Stress ; Fault zone ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Geol. aspects ; Structural geology ; ENDNOTE?
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  • 7
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    European Seismological Commission
    In:  Bull., Open-File Rept., Seismology in Europe. Papers presented at the XXV General Assembly of ESC, September 9-14, 1996 in Reykjavík, Iceland, Reykjavík, European Seismological Commission, vol. 10, no. 16, pp. 461-466, (ISBN 0080419208)
    Publication Date: 1996
    Keywords: Seismicity ; Volcanology ; Plate tectonics ; Gudmundsson ; Augustsson ; Agustsson ; Stefansson ; Rognvaldsson ; ENDNOTE?
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  • 8
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    Institute of Physics
    In:  Bristol, Institute of Physics, vol. 8, no. Publ. No. 12, pp. 95-104, (ISBN 0-865-42078-5)
    Publication Date: 1986
    Keywords: Rock mechanics ; Fracture ; Boundary Element Method ; Elasticity ; Dynamic
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  • 9
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    European Seismological Commission
    In:  Bull., Open-File Rept., Seismology in Europe. Papers presented at the XXV General Assembly of ESC, September 9-14, 1996 in Reykjavík, Iceland, Reykjavík, European Seismological Commission, vol. 76, no. 16, pp. 491-497 Iceland, (ISBN 1-86239-165-3, vi + 330 pp.)
    Publication Date: 1996
    Keywords: Seismicity ; Seismic networks ; Gudmundsson ; Stefansson ; ENDNOTE?
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