E1.2-PRIN Natural Hazards and Risks
This Thematic Area aims grouping sessions oriented to the multidisciplinary study of geological (earthquakes, tsunamis, volcanic eruptions, mass wasting processes) and hydrometeorological (torrential rains, floods, droughts and fires) phenomena from a hazard and risk standpoint. Sessions should not address the physical aspects behind these phenomena but those dealing with the characterization, assessment and communication of the related hazard and risk. They may include the presentation of new methods in hazard and risk assessment like numerical modeling, probabilistic simulations, and applications to territorial planning.
Plenary Speaker: Dr. Will Steffen, Australina National University, Australia View Profile
Convenors: Gabriel González, Ignacia Calisto.
Description: This session will receive abstracts related to Natural Hazards and Risks that cannot be included in one of the specific sessions of this thematic area.
Convenors: Sergio Sepúlveda, Stella Moreiras, Reginald Hermanns.
Description: This symposium is the fifth edition of previous meetings in national congresses in Argentina (Jujuy, 2008 - Córdoba, 2014), Peru (Lima, 2010) and Chile (Antofagasta, 2012).The main goal is to congregate the international scientific community working on topics related with landslides along the Andes and surroundings, from different perspectives. Several topics will be covered, including: types of landslide processes, hazard and risk, failure and movement mechanisms, geomorphology, sedimentology, modelling, chronology, monitoring and remote sensing. Recent advances in these subjects require a fruitful interaction among academics, specialists and professionals involved in the advisory of decision makers for territorial planning and sustainable development of the potentially affected communities.
Convenors: Felipe Flores, Rodrigo Calderón, Luis Lara.
Description: During the 1980s, research on volcanic hazards began to be more systematic and progressively the State assumed the responsibility of generating them in parallel with the advancement of the geological knowledge of active volcanoes. At the same time, the emerging environmental regulation demanded a base line of natural risks. The increase of this type of evaluations has provided an important diversification of the derived products (in scale, objectives and methods), which in turn raises the need to discuss regarding the scope and the use of this information. This discussion is also inserted in a worldwide context where the validity of different methods is being debated. These methods range from those absolutely based on probabilities to others based on citizen perception. In this session we will stimulate the methodological discussion from case studies, real experiences or prototypes, that will describe this diversity in Chile.
Convenors: Rafael Aranguiz, Patricio Catalán.
Description: The tsunami risk assessment is a key topic on tsunami mitigation and development of resilient communities. One of the most important task is the tsunami hazard assessment. This session seeks to improve understanding on tsunami hazard and analyze the different available techniques to assess the hazard. The session could cover tsunami source characterization, tsunami numerical modeling, deterministic and probabilistic tsunami hazard assessment, maps of tsunami arrival time, tsunami velocities and hydrodynamic forces, tsunami damage estimation by means of fragile curves, analysis of historical events and cases studies
Convenors: Adriana E. Niz, Erlinda del V. Ortiz, Marcelo E. Savio, Jorge A. Oviedo, Manuel Abad, Tatiana Izquierdo, Cinthia Lamas.
Description: Geological processes are natural phenomena that shape our planet from its origin. Together with the environmental, climatic and social characteristics, their consequences are more or less drastic according to the region that they impact and the intensity with which they manifest themselves. In Latin America, the innumerable amount of dangerous geological processes that can potentially affect populations and infrastructure, together with the urban growth of its cities and the intensification in magnitude and frequency of these phenomena in recent years, it is essential to reflect and review this situation. The proposed Symposium is an excellent opportunity to highlight the fundamental role of the geologist in society and the contributions made by researchers and academics, from research centers and universities, to the prevention and mitigation of geological risks along all the territory, providing an updated and comprehensive view of this problem.
Convenors: Carolina Martínez, Octavio Rojas, Nelson Rangel.
Description: Risks and natural hazards are increasingly affecting more countries in the world, being the coastlines the most impacted areas due to the concentration of population. The effects are adverse, causing loss of lives and significant damage to the economy of these nations. Extreme events, which causes are less known but are associated to changes in global and regional climate patterns, are also registered besides the recurrent natural hazards. This raises a priority need for applied research in risk reduction. An interdisciplinary approach is required to address these studies; this approach must be capable of dealing with the complexity of the phenomena in its spatio-temporal scales, in its different dimensions (natural, social, environmental), using simulation techniques and projecting change scenarios for the implementation of adaptation mechanisms to build safe and sustainable societies. We encourage the submission of abstracts that address these thematics.
Convenors: Felipe Leyton, Gonzalo Montalva, Cesar Pasten, Esteban Sáez.
Description: Ground shaking during an earthquake is strongly influenced by local site conditions or Site Effects, producing amplification of the recorded seismic signal and usually linked to damage during large earthquakes. Hence, the determination of these characteristics represents a base for today’s Seismic Microzonation efforts, usually applied in moderate-to- large urban areas. We invite presentations on recent advances in site/basin effects estimations, seismic site characterization using state-of- the-art geophysical techniques, non-linear soil response, advances in numerical/analytical modeling of low-velocity sites, examples of local microzonation studies, definition of innovative and improvement of existing site proxies, and complexities that arise from the data gathering, analysis, and final synthesis.