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

 

 

 

 

 

 

Quantifying Spatial and Temporal Dimensions of Premonitory 
Animal Behavior of the July 16, 1990 Luzon Earthquake

Ricardo M. Zarco*, Jose Tiburcio S. Nicolas*, Mario J. Aguja*
Arturo S. Daag** and Anabelle F. Ringor**
*University of the Philippines
**Philippine Institute of Volcanology and Seismology

 

INTRODUCTION

Animals may be able to anticipate strong earthquakes. The magnitude 7.8 July 16,1990 Luzon earthquake provided the opportunity to investigate this phenomenon amidst the suffering it brought. The task of this research is to quantify or measure some aspects of animal behavior, to assess the pragmatic value of this phenomenon as an auxiliary short term earthquake predictor.

Examples of these types of behavior include dog howling, excitability of animals in cages, cockroach swarms and other odd behavior. It is these types of behavior prior to the July 16 earthquake which are referred to as premonitory animal behavior.

Research in the People's Republic of China (PROC) has consistently shown the association of premonitory animal behavior to ground rupture location (faultline, fracture zones) and proximity to the epicenter. The literature on the subject is not available in this country so it was thought best to conduct independent inquiry and see for ourselves if the Chinese findings are cross validated in the Philippine experience. The emphasis of this investigation is the development of a technique to measure intensity of precursory animal behavior in various localities where they are suspect to be highest and compare these values against a control group.

>> methodology

 

 


Send comments or suggestions to Webmaster
Copyright© Philippine Institute of Volcanology and Seismology 2001
All rights reserved.