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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />INTRODUCTION <br />the natural environment acid the rational management of development and future population <br />growth. <br />1.2 THE PLANNING CHALLENGE <br />If Puna continues to develop at the present rate within the framework of the extensive <br />subdivisions, there will be several types of significant, long-term consequences: <br />• An increasing number of people and property improvements are being put at risk due <br />to natural hazards. All of Puna lies within the three most hazardous geological risk <br />zones: LF1, LF2 and LF3. About 6,400 subdivision lots lie in the highest hazard <br />zone, LFI, and over 500 of these are exposed to additional risks from subsidence, <br />tsunami and earthquakes. That 2,038 lots in the lower hazard zone LF2 have been <br />covered or cut off by lava flows in recent decades underscores the hazardous nature <br />of much of the district. <br />Figure 1-2: Geological Risk Zones Relative to Populated Areas and Subdivisions <br />1-4 <br />