Abstract:

Analysis of Geohydrological Risks based on SR & GIS from the Southeast Portion of the City of La Paz, Baja California Sur, Mexico

Hirales-Rochin, Joel, Area of Earth Sciences, Department of Civil Engineering, Technological Institute of La Paz, joelhirales@itlp.edu.mx (Poster)

Geological and hydrometeorological risks are currently responsible for the high levels of affectation and destruction in urban areas, in the twentieth century alone it is estimated that more than one million people worldwide have died as a result of earthquakes. In Mexico annually, more than 50% of the disasters that occur in the country are triggered by phenomena of hydrometeorological origin, hurricanes and other types of torrential rains stand out, being Baja California Sur the entity with the highest incidence of cyclones on average in the Ocean Northeast Pacific Therefore, the capital city La Paz is characterized by intermittent surface hydrology and lack of rivers. However, the plain in which these runoffs are distributed until they flow into the Bay of La Paz, originate important areas of flooding in the peripheral area of ​​the city. The methodology to achieve the objectives was based on the compilation of information from the study area, data collection and observation of geohydrological conditions. All this information was complemented with RS and GIS technology compatible with satellite data prepared in ArcGIS software. Finally, several thematic maps and a final map of vulnerability to geohydrological risk were generated. The results contribute with new geotechnical knowledge to be used in the most precise zoning of geological and hydrogeological risks and which together are useful for the planning and sustainable urban development of La Paz City.

Bio:

• Professor of Earth Sciences Department & Research proyects head/Instituto Tecnológico de La Paz, Baja California Sur, México.
• Graduated: 1999, Universidad Autonoma de Baja California Sur, Title: Geology-Specialty: Geohydrology.
• Mexican Geophysical Union Member / AEG Member (South California Chapter).

Recent academic events:

• Participation in XIII IAEG CONGRESS – Poster: Geo-hazards associated with the urban geology of the city of La Paz, B.C.S., México (northwest portion) September 15-23, 2018 .San Francisco, California.
• Participation in XIV IAEG CONGRESS – Poster: Susceptibility of risks based on urban geology from the city of La Paz, B.C.S., Mexico (southeast portion). September 17-22, 2019 .Ashville, North Caroline.
• Participation in BIGS 2019 (Badong International Geohazards Symposium).Hydraulic works of protection and channeling based on geo-hazards of urban geology in the city of La Paz, B.C.S., Mexico (southeast portion).August-24-25.Badong, China.

Last published papers:

1) Hirales-Rochin, J., Urcadiz-Cazares, F. J.,2019, Geo-hazards associated with urban geology in the City of La Paz Baja California Sur., Mexico: AEG News, vol. 62, no. 3, pp. 32-37.

2 )Hirales-Rochin, J.,2020, Risk Susceptibility Mapping Based on the Urban Geology of the City of La Paz, B.C.S., Mexico(NE-SE portion):AEG News,vol.63 no.3,pp.29-35.

3) Cretaceous to Cenozoic sequential kinematics in the forearc–arc transition: effects of changing oblique plate convergence and the San Andreas system with implications for the La Paz fault (southern Baja California, Mexico).International Journal of Earth sciences.Ed.Springer.2010.

Joel is currently collaborating in the preparation of the book: Geology of La Paz, Mexico, within the publications Geology of the Cities of the world published by AEG.

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