SEPTEMBER 19, 1985 MEXICO EARTHQUAKE

SEPTEMBER 19, 1985 MEXICO EARTHQUAKE

WALTER HAYS

GLOBAL INSTITUTE FOR ENERGY AND ENVIRONMENTAL SYSTEMS

WALTER HAYS

GLOBAL INSTITUTE FOR ENERGY AND ENVIRONMENTAL SYSTEMS

1985 MEXICO EARTHQUAKE1985 MEXICO EARTHQUAKE

• SEPTEMBER 19, 1985

• M8.1

• A SUBDUCTION ZONE QUAKE

• SEPTEMBER 19, 1985

• M8.1

• A SUBDUCTION ZONE QUAKE

• ALTHOUGH LARGER THAN USUAL, THE EARTHQUAKE WAS NOT A “SURPRISE”

• A GOOD, MODERN BUILDING CODE HAD BEEN ADOPTED AND IMPLEMENTED

• ALTHOUGH LARGER THAN USUAL, THE EARTHQUAKE WAS NOT A “SURPRISE”

• A GOOD, MODERN BUILDING CODE HAD BEEN ADOPTED AND IMPLEMENTED

1985 MEXICO EARTHQUAKE1985 MEXICO EARTHQUAKE

• EPICENTER LOCATED 240 KM FROM MEXICO CITY

• EPICENTER LOCATED 240 KM FROM MEXICO CITY

• 400 BUILDINGS COLLAPSED IN OLD LAKE BED ZONE OF MEXICO CITY

• SOIL-STRUCTURE RESONANCE IN OLD LAKE BED ZONE WAS A MAJOR FACTOR

• 400 BUILDINGS COLLAPSED IN OLD LAKE BED ZONE OF MEXICO CITY

• SOIL-STRUCTURE RESONANCE IN OLD LAKE BED ZONE WAS A MAJOR FACTOR

AFTER THE SEPTEMBER 19, 1985 AFTER THE SEPTEMBER 19, 1985 MEXICO EARTHQUAKEMEXICO EARTHQUAKE

AFTER THE SEPTEMBER 19, 1985 AFTER THE SEPTEMBER 19, 1985 MEXICO EARTHQUAKEMEXICO EARTHQUAKE

URGENT GOAL: TO FIND THE COMMON AGENDAURGENT GOAL: TO FIND THE COMMON AGENDA((CACA) OF TECHNICAL ) OF TECHNICAL

AND POLITICAL SOLUTIONSAND POLITICAL SOLUTIONS

URGENT GOAL: TO FIND THE COMMON AGENDAURGENT GOAL: TO FIND THE COMMON AGENDA((CACA) OF TECHNICAL ) OF TECHNICAL

AND POLITICAL SOLUTIONSAND POLITICAL SOLUTIONS

TECHNICAL TECHNICAL SOLUTIONSSOLUTIONSTECHNICAL TECHNICAL SOLUTIONSSOLUTIONS

POLITICAL POLITICAL SOLUTIONSSOLUTIONSPOLITICAL POLITICAL

SOLUTIONSSOLUTIONS

CACA

AFTER THE SEPTEMBER 19, 1985 AFTER THE SEPTEMBER 19, 1985 MEXICO EARTHQUAKEMEXICO EARTHQUAKE

AFTER THE SEPTEMBER 19, 1985 AFTER THE SEPTEMBER 19, 1985 MEXICO EARTHQUAKEMEXICO EARTHQUAKE

RELEARNED FACT: THE COMMON AGENDA IS BASED RELEARNED FACT: THE COMMON AGENDA IS BASED ON A COMMUNITY’S ON A COMMUNITY’S STAPLESTAPLE FACTORS FACTORS

RELEARNED FACT: THE COMMON AGENDA IS BASED RELEARNED FACT: THE COMMON AGENDA IS BASED ON A COMMUNITY’S ON A COMMUNITY’S STAPLESTAPLE FACTORS FACTORS

TECHNICAL TECHNICAL SOLUTIONSSOLUTIONSTECHNICAL TECHNICAL SOLUTIONSSOLUTIONS

POLITICAL POLITICAL SOLUTIONSSOLUTIONSPOLITICAL POLITICAL

SOLUTIONSSOLUTIONS

STAPLESTAPLE FACTORSFACTORSSTAPLESTAPLE

FACTORSFACTORS

PPPP

TTTTSSSS

OOOO

CACA

A COMMUNITY’S STAPLE FACTORS VARY WITH

A COMMUNITY’S STAPLE FACTORS VARY WITH

• TIME

• PLACE• CIRCUMSTANCES

• TIME

• PLACE• CIRCUMSTANCES

1985 MEXICO EARTHQUAKE: CRITICAL STRUCTURES--

HOSPITALS

1985 MEXICO EARTHQUAKE: CRITICAL STRUCTURES--

HOSPITALS

1985 MEXICO EARTHQUAKE: ESSENTIAL STRUCTURES--

SCHOOLS

1985 MEXICO EARTHQUAKE: ESSENTIAL STRUCTURES--

SCHOOLS

1985 MEXICO EARTHQUAKE: STEEL FRAME BUILDING

1985 MEXICO EARTHQUAKE: STEEL FRAME BUILDING

1985 MEXICO EARTHQUAKE: POUNDING

1985 MEXICO EARTHQUAKE: POUNDING

1985 MEXICO EARTHQUAKE: NUEVA LEON APARTMENT

BUILDINGS

1985 MEXICO EARTHQUAKE: NUEVA LEON APARTMENT

BUILDINGS

1985 MEXICO EARTHQUAKE: SEARCH AND RESCUE

1985 MEXICO EARTHQUAKE: SEARCH AND RESCUE

1985 MEXICO EARTHQUAKE: SEARCH AND RESCUE

1985 MEXICO EARTHQUAKE: SEARCH AND RESCUE

1985 MEXICO EARTHQUAKE: RAILROAD SYSTEM

1985 MEXICO EARTHQUAKE: RAILROAD SYSTEM

1985 MEXICO EARTHQUAKE: TELECOMMUNICATIONS (SCT)1985 MEXICO EARTHQUAKE:

TELECOMMUNICATIONS (SCT)

1985 MEXICO EARTHQUAKE: SOIL AMPLIFICATION

1985 MEXICO EARTHQUAKE: SOIL AMPLIFICATION

1985 MEXICO EARTHQUAKE1985 MEXICO EARTHQUAKE

• THE EARTHQUAKE SERVED AS A CATALYST FOR IMPROVING URBAN SEARCH AND RESCUE IN THE UNITED STATES

• THE EARTHQUAKE SERVED AS A CATALYST FOR IMPROVING URBAN SEARCH AND RESCUE IN THE UNITED STATES

• MEXICAN OFFICIALS SIGNIFICANTLY UPGRADED THE SEISMIC DESIGN PROVISIONS OF THE MEXICO BUILDING CODE

• MEXICAN OFFICIALS SIGNIFICANTLY UPGRADED THE SEISMIC DESIGN PROVISIONS OF THE MEXICO BUILDING CODE