Dairy-cow milk-yield changes preceding earthquake occurrence
An observational time-series study reported that dairy-cow milk yields varied systematically before a selected set of nearby earthquakes, including a negative association approximately three weeks before the event dates. Milk yield is an objective, routinely collected physiological and productivity measure, but it is influenced by many non-seismic factors. Current evidence supports a reported temporal association only and does not establish causation or reliable earthquake forecasting.
Relationship Type: temporal sequence, reported association, non-causal
Concept A: Dairy-cow milk yield
Concept B: Earthquake occurrence
Evidence Strength: 20/100
Interpretation Confidence: 90%
Review Status: reviewed
Supporting Evidence
Statistical Evaluations of Variations in Dairy Cows’ Milk Yields as a Precursor of Earthquakes
Hiroyuki Yamauchi, Masashi Hayakawa, Tomokazu Asano, Nobuyo Ohtani, Mitsuaki Ohta
Unusual Animal Behavior Preceding the 2011 Earthquake off the Pacific Coast of Tohoku, Japan: A Way to Predict the Approach of Large Earthquakes
Hiroyuki Yamauchi, Hidehiko Uchiyama, Nobuyo Ohtani, Mitsuaki Ohta