Jefferson County Department of Emergency Management 81 Elkins Road, Port Hadlock, Washington 98339 - Phone: (360) 385-9368 Email:
[email protected] TABLE OF CONTENTS PURPOSE 3 EXECUTIVE SUMMARY 4 I. INTRODUCTION 6 II. GEOGRAPHIC CHARACTERISTICS 6 III. DEMOGRAPHIC ASPECTS 7 IV. SIGNIFICANT HISTORICAL DISASTER EVENTS 9 V. NATURAL HAZARDS 12 • AVALANCHE 13 • DROUGHT 14 • EARTHQUAKES 17 • FLOOD 24 • LANDSLIDE 32 • SEVERE LOCAL STORM 34 • TSUNAMI / SEICHE 38 • VOLCANO 42 • WILDLAND / FOREST / INTERFACE FIRES 45 VI. TECHNOLOGICAL (HUMAN MADE) HAZARDS 48 • CIVIL DISTURBANCE 49 • DAM FAILURE 51 • ENERGY EMERGENCY 53 • FOOD AND WATER CONTAMINATION 56 • HAZARDOUS MATERIALS 58 • MARINE OIL SPILL – MAJOR POLLUTION EVENT 60 • SHELTER / REFUGE SITE 62 • TERRORISM 64 • URBAN FIRE 67 RESOURCES / REFERENCES 69 Jefferson County Hazard Identification and Vulnerability Assessment 2011 2 PURPOSE This Hazard Identification and Vulnerability Assessment (HIVA) document describes known natural and technological (human-made) hazards that could potentially impact the lives, economy, environment, and property of residents of Jefferson County. It provides a foundation for further planning to ensure that County leadership, agencies, and citizens are aware and prepared to meet the effects of disasters and emergencies. Incident management cannot be event driven. Through increased awareness and preventive measures, the ultimate goal is to help ensure a unified approach that will lesson vulnerability to hazards over time. The HIVA is not a detailed study, but a general overview of known hazards that can affect Jefferson County. Jefferson County Hazard Identification and Vulnerability Assessment 2011 3 EXECUTIVE SUMMARY An integrated emergency management approach involves hazard identification, risk assessment, and vulnerability analysis. This document, the Hazard Identification and Vulnerability Assessment (HIVA) describes the hazard identification and assessment of both natural hazards and technological, or human caused hazards, which exist for the people of Jefferson County.