Transcript 1985 Mexico City Earthquake

SEPTEMBER 19, 1985 MEXICO
EARTHQUAKE
WALTER HAYS
GLOBAL INSTITUTE FOR ENERGY AND
ENVIRONMENTAL SYSTEMS
1985 MEXICO EARTHQUAKE
• 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
1985 MEXICO EARTHQUAKE
• 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
AFTER THE SEPTEMBER 19, 1985
MEXICO EARTHQUAKE
URGENT GOAL: TO FIND THE COMMON AGENDA
(CA) OF TECHNICAL
AND POLITICAL SOLUTIONS
POLITICAL
SOLUTIONS
TECHNICAL
SOLUTIONS
CA
AFTER THE SEPTEMBER 19, 1985
MEXICO EARTHQUAKE
RELEARNED FACT: THE COMMON AGENDA IS BASED
ON A COMMUNITY’S STAPLE FACTORS
POLITICAL
SOLUTIONS
TECHNICAL
SOLUTIONS
CA
STAPLE
FACTORS
S
O
P
T
A COMMUNITY’S STAPLE
FACTORS VARY WITH
• TIME
• PLACE
• CIRCUMSTANCES
1985 MEXICO EARTHQUAKE:
CRITICAL STRUCTURES-HOSPITALS
1985 MEXICO EARTHQUAKE:
ESSENTIAL STRUCTURES-SCHOOLS
1985 MEXICO EARTHQUAKE:
STEEL FRAME BUILDING
1985 MEXICO EARTHQUAKE:
POUNDING
1985 MEXICO EARTHQUAKE:
NUEVA LEON APARTMENT
BUILDINGS
1985 MEXICO EARTHQUAKE:
SEARCH AND RESCUE
1985 MEXICO EARTHQUAKE:
SEARCH AND RESCUE
1985 MEXICO EARTHQUAKE:
RAILROAD SYSTEM
1985 MEXICO EARTHQUAKE:
TELECOMMUNICATIONS (SCT)
1985 MEXICO EARTHQUAKE:
SOIL AMPLIFICATION
1985 MEXICO EARTHQUAKE
• THE EARTHQUAKE • MEXICAN
SERVED AS A
OFFICIALS
CATALYST FOR
SIGNIFICANTLY
IMPROVING
UPGRADED THE
URBAN SEARCH
SEISMIC DESIGN
AND RESCUE IN
PROVISIONS OF
THE UNITED
THE MEXICO
STATES
BUILDING CODE