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LOMA PRIETA, CA EARTHQUAKE. Dr. Walter Hays, Global Alliance For Disaster Reduction . OCTOBER 17, 1989. LOMA PRIETA, CALIFORNIA EARTHQUAKE. 5:04 PM ON OCTOBER 17, 1989 M 7.1 62 DEATHS $1 BILLION INSURED LOSS FRAGILE INFRASTRUCTURE EXPOSED. LOMA PRIETA EARTHQUAKE. 62 DEATHS

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loma prieta ca earthquake

LOMA PRIETA, CA EARTHQUAKE

Dr. Walter Hays,

Global Alliance For Disaster Reduction

OCTOBER 17, 1989

loma prieta california earthquake

LOMA PRIETA, CALIFORNIA EARTHQUAKE

5:04 PM ON OCTOBER 17, 1989

M 7.1

62 DEATHS

$1 BILLION INSURED LOSS

FRAGILE INFRASTRUCTURE EXPOSED

loma prieta earthquake
LOMA PRIETA EARTHQUAKE
  • 62 DEATHS
  • 3,757 INJURIES
  • 8,000 HOMELESS
  • $5.6 BILLION PROPERTYDAMAGE
  • LIFELINE FLAWS
loma prieta earthquake4
LOMA PRIETA EARTHQUAKE
  • 1,300 BUILDINGS DESTROYED
  • 20,000 BUILDINGS DAMAGED
  • 3,500 BUSINESSESDAMAGED
  • $1.8 BILLION LOSS TO TRANS-PORTATION
slide8

WEST

NORTH

Schematic Diagram of the Earthquake Mechanism

slide9

WEST

NORTH

Schematic Diagram of the Earthquake Mechanism, But Without Surface Rupture

slide22

POLITICAL SOLUTIONS

CA

GOVERNOR DEUKMEJIAN’S BOARD OF INQUIRY

GOAL: TO FIND THE COMMON AGENDA

(CA) OF TECHNICAL

AND POLITICAL SOLUTIONS

TECHNICAL SOLUTIONS

governor deukmejian s board of inquiry
THE BOARD’S REPORT:“COMPETING AGAINST TIME”

QUESTION 1:

WHY DID THE CYPRESS VIADUCT ON INTERSTATE 880 AND THE OAKLAND BAY BRIDGE SPAN FAIL?

GOVERNOR DEUKMEJIAN’S BOARD OF INQUIRY
governor deukmejian s board of inquiry25
THE BOARD’S REPORT:“COMPETING AGAINST TIME”

QUESTION 3:

CAN WE IMPROVE OUR ABILITY TO PREDICT ACCURATELY FUTURE BRIDGE FAILURES?

GOVERNOR DEUKMEJIAN’S BOARD OF INQUIRY
governor deukmejian s board of inquiry26
THE BOARD’S REPORT:“COMPETING AGAINST TIME”

QUESTION 4:

IS THE SCHEDULE FOR AND MANNER OF RETROFITTING CA’S BRIDGE STRUCTURES APPROPRIATE IN TERMS OF THE STATE-OF-ART?

GOVERNOR DEUKMEJIAN’S BOARD OF INQUIRY
governor deukmejian s board of inquiry27
THE BOARD’S REPORT:“COMPETING AGAINST TIME”

QUESTION 5:

SHOULD CA MODIFY EXISTING CONSTRUCTION AND RETROFIT PROGRAMS FOR BRIDGE STRUCTURES?

GOVERNOR DEUKMEJIAN’S BOARD OF INQUIRY
governor deukmejian s board of inquiry28
THE BOARD’S REPORT:“COMPETING AGAINST TIME”

QUESTION 6:

ARE CA’S FREEWAY SYSTEMS SAFE FROM FUTURE EARTHQUAKES?

GOVERNOR DEUKMEJIAN’S BOARD OF INQUIRY
slide29

POLITICAL SOLUTIONS

CA

STAPLE FACTORS

S

P

O

T

GOVERNOR DEUKMAJIAN’S BOARD OF INQUIRY

FACT: THE COMMON AGENDA WAS BASED

ON THE STRICKEN COMMUNITY’S STAPLE FACTORS

TECHNICAL SOLUTIONS

board s recommendations integrated political and technical solutions
1.AFFIRM THE POLICY THAT SEISMIC SAFETY IS A PRIMARY CONCERN FOR ALL TRANSPORTATION SYSTEMS

2.ESTABLISH THE POLICY THAT SEISMIC SAFETY IS A PRIORITY FOR ALL PUBLIC AND PRIVATE BUILDINGS

BOARD’S RECOMMENDATIONS: INTEGRATED POLITICAL AND TECHNICAL SOLUTIONS
board s recommendations integrated political and technical solutions32
3.ESTABLISH A MECHANISM TO ADVISE THE GOVERNOR AND LEGISLATURE ON THE ACTIONS OF CA’S AGENCIES TO ACHIEVE SEISMIC SAFETY

4.PREPARE A PLAN TO MEET THE GOVERNOR’S GOALS FOR THE SEISMIC SAFETY OF CA’S TRANSPORTATION SYSTEMS

BOARD’S RECOMMENDATIONS: INTEGRATED POLITICAL AND TECHNICAL SOLUTIONS
board s recommendations integrated political and technical solutions33
5.FORM A PERMANENT EARTHQUAKE ADVISORY BOARD TO ADVISE CALTRANS ON POLICY, STANDARDS, AND PRACTICE

6.ENSURE THAT CALTRAN’S SEISMIC DESIGN POLICIES AND CONSTRUCTION PRACTICES MEET THE POLICIES AND GOALS SET BY THE GOVERNOR

BOARD’S RECOMMENDATIONS: INTEGRATED POLITICAL AND TECHNICAL SOLUTIONS
board s recommendations integrated political and technical solutions34
7.TAKE SPECIFIC ACTIONS TO REDUCE VULNERABILITIES OF NEW AND EXISTING TRANSPORTATION SYSTEMS

8.INVOLVE ALL TRANSPORTATION AGENCIES AND DISTRICTS--RAIL, HIGHWAY, AIRPORTS, PORTS, AND HARBORS---IN THE SOLUTION

BOARD’S RECOMMENDATIONS: INTEGRATED POLITICAL AND TECHNICAL SOLUTIONS
slide35

State of California (1990), Competing Against Time, Report of Governor Deukmejian’s Board of Inquiry on the Loma Prieta Earthquake

Office of Planning and Research, New Highlands, California, 264 p.