THE ALQUIST PRIOLO THE ALQUIST PRIOLO EARTHQUAKE FAULT ACT AS A EARTHQUAKE FAULT ACT AS A MODEL FOR OTHER HAZARD MODEL FOR OTHER HAZARD LOSS REDUCTION ACTIONS LOSS REDUCTION ACTIONS James F. Davis, former CA State Geologist, Earl W. Hart, former Manager of AP Zoning Program, Richard J. McCarthy, Director CA Seismic Safety Commission, John G. Parrish, CA State Geologist Session T80 GEOLOGICAL SOCIETY OF AMERICA GEOLOGICAL SOCIETY OF AMERICA ANNUAL MEETING ANNUAL MEETING Denver, CO October 30, 2007
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THE ALQUIST PRIOLO EARTHQUAKE FAULT ACT AS A MODEL FOR OTHER HAZARD LOSS REDUCTION ACTIONS James F. Davis, former CA State Geologist, Earl W. Hart, former.
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THE ALQUIST PRIOLO THE ALQUIST PRIOLO EARTHQUAKE FAULT ACT AS A EARTHQUAKE FAULT ACT AS A MODEL FOR OTHER HAZARD MODEL FOR OTHER HAZARD LOSS REDUCTION ACTIONSLOSS REDUCTION ACTIONS
James F. Davis, former CA State Geologist, Earl W. Hart, former Manager of AP Zoning Program,
Richard J. McCarthy, Director CA Seismic Safety Commission,John G. Parrish, CA State Geologist
Session T80
GEOLOGICAL SOCIETY OF AMERICAGEOLOGICAL SOCIETY OF AMERICAANNUAL MEETINGANNUAL MEETING
Denver, COOctober 30, 2007
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PURPOSE OF PAPERPURPOSE OF PAPER To Generically Outline Components Of An
Effective Land-Use Zoning Program To Reduce Losses From Geologic Hazards As A Model For Other Programs
Photo by W. A. Bryant
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OUTLINE OF PRESENTATIONOUTLINE OF PRESENTATION
Clearly Defined Objective Of Zoning Program
Unambiguous Criteria For Defining Zones Geologic Investigations To Define Zones Responsible Party To Establish Zones Define Responsibilities Of All Other Parties
In Administering Program Define System Of Accountabilities And
Sanctions Necessary To Assure Compliance With Regulations
1.1. COMPONENTS OF SUCCESSFUL COMPONENTS OF SUCCESSFUL LAND-USE ZONING PROGRAMLAND-USE ZONING PROGRAM
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2.2. LESSONS LEARNED DURING 35-LESSONS LEARNED DURING 35-YEAR SUCCESSFUL YEAR SUCCESSFUL ADMINISTRATION OF THE AP ADMINISTRATION OF THE AP ZONING ACTZONING ACT
3.3. IDENTIFICATION OF IDENTIFICATION OF OPPORTUNITIES THAT FAVOR OPPORTUNITIES THAT FAVOR ENACTMENT AND ENACTMENT AND IMPLEMENTATION OF GEOLOGIC IMPLEMENTATION OF GEOLOGIC HAZARDS LAND-USE ZONING HAZARDS LAND-USE ZONING PROGRAMSPROGRAMS
4.4. BENEFITS OF LAND-USE BENEFITS OF LAND-USE REGULATION OF GEOLOGIC REGULATION OF GEOLOGIC HAZARDS – AP ACT AS A MODEL HAZARDS – AP ACT AS A MODEL
CLEARLY DEFINED OBJECTIVE CLEARLY DEFINED OBJECTIVE OF GEOLOGIC HAZARD ZONING OF GEOLOGIC HAZARD ZONING
PROGRAMPROGRAM The Alquist Priolo Earthquake Fault Zone
Program Is Established To Avoid Placing Structures For Human Occupancy On Traces Of Active Surface Faults Where Ground Rupture Can Cause Property Losses And Casualties
The Placement Of Structures Off Of Active Faults Is The Only Practical Mitigation Measure
RESPONSIBLE PARTY TO RESPONSIBLE PARTY TO ESTABLISH ZONESESTABLISH ZONES
AP Zoning Act Designates The California State Geologist And The California State Geological Survey To Prepare AP Zone Maps
The Zones Are Approved Officially For Land-Use Regulation By The Gubernatorially Appointed California Mining And Geology Board Which Advises The State Geologist
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INDEX TO AP EARTHQUAKE FAULT ZONE MAPSINDEX TO AP EARTHQUAKE FAULT ZONE MAPS(1974 – 2007)(1974 – 2007)
547 Earthquake Fault Zone Maps issued as
of 9/1/2007
36 Counties and 104 Cities affected
SacramentoSacramento
LosLosAngelesAngeles
SanSanFranciscoFrancisco
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OfficialOfficialEarthquake Fault Earthquake Fault
Zone MapZone Map
Niles Quadrangle
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OFFICIAL EARTHQUAKE FAULT ZONE MAPOFFICIAL EARTHQUAKE FAULT ZONE MAPNiles Quadrangle
Evaluates Faults Designates Earthquake Fault Zones Provides Advisory Services Requires Site Investigations Updates General Plans Reviews and Approves Projects Applies For Waivers
ROBUST SYSTEM OF ROBUST SYSTEM OF PERFORMANCE PERFORMANCE
ACCOUNTABILITIES AND ACCOUNTABILITIES AND SANCTIONSSANCTIONS
CA State Geologist & CGS Staff
CA Mining & Geology Board & Staff – Licensing And Political Consequences
All Geologists Involved in AP Are Subject to License Loss and Financial Liability for Misfeasance or Malpractice
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* Geologist Involvement
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Geologic Consultants &/Or Geologic Staff Of Developers And Local Governments
Developers Loss Of License, Voiding Of Approvals, Financial Liability
Elected Local Governing Boards, Political Consequences And Financial Liabilities
Realtors Loss Of License And Financial Liabilities
Owners, Voiding Of Sale And Financial Liabilities
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* Geologist Involvement
COMPONENT #6 ContinuedCOMPONENT #6 Continued
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2.2. LESSONS LEARNED DURING LESSONS LEARNED DURING 35-YEAR SUCCESSFUL 35-YEAR SUCCESSFUL
ADMINISTRATION OF THE AP ADMINISTRATION OF THE AP ZONING ACTZONING ACT
Importance Of Internal Consistency In Establishing AP Zones – No Successful Suits Brought Against CGS And CA Mining & Geology Board
Professional Licensing Of Geologists Assures Capable & Objective Assessments in Private and Public Sectors
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Required Communication Between CGS & CA Mining & Geology Board And Local Governments Has Many Collateral Benefits -- State Is Trusted Source Of Other Geologic Information, Local Awareness Of Geologic Hazards Within Their Jurisdictions
State Agency Awareness Of The Necessary Components Of Successful Land-Use Regulation Of Geologic Hazards
Geologic Community Aware Of How To Use Future Opportunities To Enable Passage Of Additional Future Land-Use Regulation Of Geologic Hazards
LESSONS LEARNED ContinuedLESSONS LEARNED Continued
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3.3. IDENTIFICATION OF IDENTIFICATION OF OPPORTUNITIES THAT FAVOR OPPORTUNITIES THAT FAVOR
ENACTMENT AND ENACTMENT AND IMPLEMENTATION OF GEOLOGIC IMPLEMENTATION OF GEOLOGIC
Capability Of Identifying Circumstances That Create Key Opportunities For Successful Legislation
These Are Usually Based On Briefly Heightened Public Awareness Of Hazard That Justifies The Establishment Of Land-Use Regulation Program
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Pre-opportunity Development Of Consensus Within The Geologic Community Regarding Approach, Content And Value Of Contemplated Land-Use Regulation
Pre-opportunity Identification Of Key Legislative Sponsor(s) Through Dialog With The Geologic Community In Advance Of Opportunities
Plan To Mobilize Geologic Community To Action When Opportunities Arise
Frequent High Quality Communications By The Geologic Community to the Public and Decision Makers Before Public-Awareness Based Opportunities Develop
OPPORTUNITIES for ENACTMENT ContinuedOPPORTUNITIES for ENACTMENT Continued
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4.4. BENEFITS OF LAND-USE BENEFITS OF LAND-USE REGULATION OF GEOLOGIC REGULATION OF GEOLOGIC
HAZARDS – AP ACT AS A MODELHAZARDS – AP ACT AS A MODEL
Long Term Investment In Avoiding Losses Due To Surface Rupture
Systematic Identification Of Recency Of Surface Faulting Throughout State Expands Overall Knowledge Of Earthquake Vulnerability (Earthquake Probabilities Estimates, Size Of Potential Events, Placement & Design of Lifelines, and Input to Applied & Academic Investigations)
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Successful Administration Of AP Act Enable Passage Of Other Legislation – CA Seismic Hazards Zoning Act
Greater Public And Local Government Awareness Of Geologic Hazards And Their Consequences
Greater Awareness Of Geologic Hazards Within The Realtor And Developers Communities
4. BENEFITS Continued4. BENEFITS Continued
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CONCLUSIONSCONCLUSIONS The Outlined Components Of The AP Act Are
Essential To Successful Administration Of Any Effective Program Of Land-Use Regulation Of Geologic Hazards
State-wide Programs Are Desirable Establishment Of Hazard Zone Maps By State
Geological Survey Is Desirable Coordination Of Activities With A Central Land-
Use State Planning Agency (If One Exists) Is Desirable
Inclusion Of Local Government Land-Use Decision Makers And Regulators Participation In The Zoning Process Is Essential
Successful Enactment Of Hazard Land-Use Regulation Requires Consensus Among All Of The Stake Holders In The Geologic Professional Community Prior To Passage