Papers by Raul Oberreuter
RESUMEN Se identificó y evaluó la vulnerabilidad de un total de 227 edificaciones asociadas al tu... more RESUMEN Se identificó y evaluó la vulnerabilidad de un total de 227 edificaciones asociadas al turismo en la ciudad puerto de Valparaíso, que se encuentran en el área de inundación definida para el peor escenario conocido para la zona. Se utilizó el Modelo de Evaluación de la Vulnerabilidad por Tsunami de Papathoma (PTVA-3). Los resultados muestran que las edificaciones asociadas al alojamiento, como hoteles, presentan bajos índices de vulnerabilidad, por lo que se recomienda considerar la evacuación vertical en estos casos. Las otras tipologías-alimentación, atractivos y servicios-también presentan en general bajos índices de vulnerabilidad, pero con mayor dispersión. El puerto y la línea ferroviaria se han transformado en una barrera de protección y exclusión de emplazamientos de edificaciones en las zonas más expuestas. En los sectores emplazados entre la línea férrea y la línea costera, tales como Caleta Portales y Muelle Barón, se concentran las edificaciones con mayor índice de vulnerabilidad. PALABRAS CLAVE Evaluación vulnerabilidad por tsunami de Papathoma, PTVA-3, Vulnerabilidad urbana de edificaciones, Área de inundación TSUNAMI VULNERABILITY ASSESSMENT FOR THE TOURISM SECTOR IN VALPARAÍSO, CHILE ABSTRACT The vulnerability of a total of 227 buildings associated with tourism in the port city of Valparaíso, which is located in the flood area defined for the worst known scenario for the area, was identified and evaluated. The Papathoma Tsunami Vulnerability Assessment Model (PTVA-3) was used. The results show that the buildings were associated with accommodation, have low vulnerability indexes, it is recommended to consider vertical evacuation in these cases. The other typologies-restaurant, sight and services-also have low vulnerability indexes, but with greater dispersion. The port and the railway line have been transformed into a barrier of protection and exclusion of building sites in the most exposed areas. Sectors that remain outside the railway line, such as Caleta Portales and Muelle Barón, show the highest vulnerabilities.
On September 16, 2015, a Mw 8.3 earthquake occurred off the coast of Illapel, Central Chile, gene... more On September 16, 2015, a Mw 8.3 earthquake occurred off the coast of Illapel, Central Chile, generating a tsunami that caused moderate damage along the coast of Central Chile. To investigate tsunami damage and evacuation responses, we conducted a post-tsunami field survey between La Serena and Concón. The average tsunami inundation height in the survey area was 3–4 m; however, in the innermost corner of Coquimbo Bay, which was shielded from the tsunami source by the Coquimbo Peninsula, the tsunami inundation height was 6.0-6.2 m, decreasing gradually along the coast away from the corner. This phenomenon was also confirmed around Tongoy Bay, which is geographically similar to Coquimbo Bay. Based on our results, we hypothesize that the tsunami was diffracted and refracted by the peninsula, and then converged on the innermost corner of the bay, located behind the peninsula. Interviews with local residents confirmed that most people evacuated immediately after feeling strong seismic motion, but before the tsunami warning and evacuation orders were issued. However, several people did not evacuate, either because they believed that they were located in a safe place, or because they wanted to protect their property.
Coast. Eng. J. DOI: http://dx.doi.org/10.1142/S0578563416500030
Teaching Documents by Raul Oberreuter
En el presente documento se exponen los hitos de la historia en torno a lo que hoy enfocamos como... more En el presente documento se exponen los hitos de la historia en torno a lo que hoy enfocamos como Reducción de Riesgo de Desastre (RRD). Luego, se presentan los fundamentos básicos de los esfuerzos mundiales por reducir los efectos de los desastres en el Marco de Acción de Hyogo (MAH) y posteriormente se analiza el enfoque para reducir el Riesgo de Desastre en el Marco de Acción de Sendai (MAS). Se muestran las diferentes perspectivas que cruzan estos marcos de acción. Finalmente se indican los esfuerzos del mundo y Chile por avanzar en la RRD.
Uploads
Papers by Raul Oberreuter
Coast. Eng. J. DOI: http://dx.doi.org/10.1142/S0578563416500030
Teaching Documents by Raul Oberreuter
Coast. Eng. J. DOI: http://dx.doi.org/10.1142/S0578563416500030