PHIVOLCS
 
Foreword
The July 16 1990 Luzon Earthquake Rupture
Inventory and Characterization of Landslides induced by the 16 July 1990 Luzon Earthquake
Mapping of Areas Affected by Liquefaction during the 16 July 1990 Earthquake
The 16 July 1990 Luzon Earthquake and its Aftershock Activity
Soil Study of Area Damage due to Liquefaction during the 16 July 1990 Philippine Earthquake
Vital Engineering Lessons from the Earthquake of July 16, 1990
Quantifying Spatial and Temporal Dimensions of Premonitory Animal Behavior of the July 16, 1990 Luzon Earthquake
Households and Communities in a Post-Earthquake Situation: Lessons on Survival and Self-Reliance
Organizational Response to the July 1990 Luzon Earthquake Disaster
Psychosocial Issues in Disasters
Management Strategies for Earthquake-Related Psychosocial Problems Community-Based Interventions
Some Implications of the July 16, 1990 Earthquake on Urban and Regional Planning in the Philippines

 

 

 

 

 

  

The 16 July 1990 Luzon Earthquake and its Aftershock Activity
Bartolome C.Bautista, Ma. Leonila P.Bautista, Anel R. Rasdas
Angelito G. Lanuza, Erlinda Q. Amin and Perla J. Delos Reyes
Philippine Institute of Volcanology and Seismology - DOST

 

TECTONIC SETTING

The susceptibility of the Philippines to strong earthquakes can be explained by its tectonic setting. The country is sandwiched between two opposing plates – the South China Sea Plate and the Philippine Sea Plate. The PFZ formed as an adjustment to continuous opposite subductions. This is supported by the agreement in values of slip notes of the two plates and the rate of motion of the PFZ using seismic moments of past earthquakes whic occurred along the fault (Acharya, 1980).

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