Development of Earthquake Liquefaction Maps of Laguna, Philippines
2021 IEEE 13th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management (HNICEM)
(2021), pp. 1-4
Nolan C. Concha
a
,
Stephen John C. Clemente
a
,
Ron David Lance S. Anonuevo
a
,
Allyssa Rose T. Carpio
a
,
Aneeza Venus B. Sales
a
,
Mel Christine E. Sto. Domingo
a
a Department of Civil Engineering, FEU-Institute of Technology, Manila, Philippines
Abstract: Structures built on high seismic areas are likely to experience earthquake liquefaction. This in turn will compromise the integrity of the structures and thus, assessment of the susceptibility to liquefaction is essential. To evaluate the likelihood and severity of earthquake induced liquefaction particularly in the 2nd district of Laguna, 74 geotechnical reports from various locations were collected. Using deterministic approach, safety factors and liquefaction severity index were calculated at different locations to generate liquefaction probability and severity maps. Results showed that there is a wide range of liquefaction severity levels from very low severity of 3.8% of the areas to high severity of 5.06% of the areas. The probability map further showed that an average of 90.49% of the areas are susceptible to liquefaction when an 8.0 earthquake magnitude occurs. The developed maps can be used by site planners and engineers to identify the severity of liquefaction at specific locations and appropriately apply remedial measures in the design of structures.