U.S. onshore hazardous liquid pipeline incidents are reviewed for 1986–2012.
6.2% of the significant incidents were found as natural hazard-triggered (natech).
Natechs resulted in 317,700 bbl of release and 597 million USD economic damage.
Meteorological hazards was the major thread with highest occurrence and total cost.
Natech vulnerabilities of the system parts vary notably with natural hazard types.