7.2 Magnitude Earthquake Strikes Just North of Acapulco Mexico on 18 April 2014
Jan 16, 2015
7.2 Magnitude Earthquake Strikes Just North of Acapulco Mexico on 18 April 2014
MEXICO
LOCATION MAP (Note Acapulco)
The quake struck around 9:28 a.m. local time (10:28
a.m. ET), 39 kilometers east of Petatlan, Mexico, in the
southwestern state of Guerrero, north of the resort
city Acapulco
INITIAL REPORTSBuildings in Mexico City
shook for 30 minutes
No Deaths; No Injuries
BACKGROUND
NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN MEXICO
NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN MEXICO
FLOODS
STORMS
EARTHQUAKES
DUST STORMS
ENVIRONMENTAL CHANGE
GLOBAL CLIMATE CHANGE
HIGH BENEFIT/COST FROM BECOMING DISASTER NRESILIENT
HIGH BENEFIT/COST FROM BECOMING DISASTER NRESILIENT
GOAL: PROTECT PEOPLE AND COMMUNITIES
GOAL: PROTECT PEOPLE AND COMMUNITIES
Mexico has a long historical record of earthquakes
CAUSE OF SEISMICITY
• The ongoing interaction of the Cocos and North American plates is the causative factor for the seismicity of Mexico.
INTERACTING PLATES
THE COCOS PLATE IS SUB-DUCTING BENEATH THE NA PLATE
ELEMENTS OF RISK AND DISASTER
HAZARDSHAZARDS
ELEMENTS OF EARTHQUAKE RISK
ELEMENTS OF EARTHQUAKE RISK
EXPOSUREEXPOSURE
VULNERABILITYVULNERABILITY LOCATIONLOCATION
RISKRISK
EARTHQUAKEHAZARD MODEL
EARTHQUAKEHAZARD MODEL
SEISMICITYSEISMICITY TECTONICSETTING &
FAULTS
TECTONICSETTING &
FAULTS
FAULTS: COCOS PLATE SUBDUCTION ZONE
EXPOSUREMODEL
EXPOSUREMODEL
LOCATION OF STRUCTURE
LOCATION OF STRUCTURE
IMPORTANCE AND VALUE OF
STRUCTURE AND CONTENTS
IMPORTANCE AND VALUE OF
STRUCTURE AND CONTENTS
EARTHQUAKE HAZARDS(the potential disaster
agents)SURFACE FAULT RUPTURE,
GROUND SHAKING, GROUND FAILURE (LIQUEFACTION,
LANDSLIDES), AFTERSHOCKS
TECTONIC DEFORMATION
EARTHQUAKE
TSUNAMI
GROUND
SHAKING
FAULT RUPTURE
FOUNDATION FAILURE
SITE AMPLIFICATION
LIQUEFACTION
LANDSLIDES
AFTERSHOCKS
SEICHE
DAMAGE/LOSS
DAMAGE/ LOSS
DAMAGE/ LOSS
DAMAGE/ LOSS
DAMAGE/ LOSS
DAMAGE/ LOSS
DAMAGE/ LOSS
DAMAGE/ LOSS
DAMAGE/ LOSS
DAMAGE/LOSS
GROUND SHAKING
GTOUND SHAKING HAZARD
VULNERABILITYMODEL
VULNERABILITYMODEL
QUALITY OF DESIGN AND
CONSTRUCTION
QUALITY OF DESIGN AND
CONSTRUCTION
ADEQUACY OF LATERAL-FORCE
RESISTING SYSTEM
ADEQUACY OF LATERAL-FORCE
RESISTING SYSTEM
UNREINFO
RCED MASO
NRY, B
RICK O
R STO
NE
REINFORCED C
ONCRETE WIT
H UNREIN
FORCED WALLS
INTENSITY
REINFORCED CONCRETE WITH REINFORCEDWALLS
STEEL FRAME
ALL METAL & WOOD FRAME
V VI VII VIII IX
35
30
25
20
15
10
5
0
MEA
N D
AM
AG
E R
ATIO
,
%
O
F R
EPLA
CE
MEN
T V
ALU
E
CONSTRUCTION MATERIALS HAVE DIFFERENT VULNERABILITIES TO GROUND
SHAKING
CONSTRUCTION MATERIALS HAVE DIFFERENT VULNERABILITIES TO GROUND
SHAKING
INADEQUATE RESISTANCE TO HORIZONTAL GROUND SHAKING
EARTHQUAKESEARTHQUAKES
SOIL AMPLIFICATION
PERMANENT DISPLACEMENT (SURFACE FAULTING & GROUND
FAILURE)
IRREGULARITIES IN ELEVATION AND PLAN
FIRE FOLLOWING RUPTURE OF UTILITIES
LACK OF DETAILING AND CONSTRUCTION MATERIALS
INATTENTION TO NON-STRUCTURAL ELEMENTS
CAUSES OF DAMAGE
CAUSES OF DAMAGE
“DISASTER LABORATORIES”
“DISASTER LABORATORIES”
A DISASTER CAN HAPPENWHEN THE
POTENTIAL DISASTER AGENTS OF AN EARTHQUAKE INTERACT WITH MEXICO’S COMMUNITIES
(INCLUDING THE CAPITAL)
A DISASTER CAN HAPPENWHEN THE
POTENTIAL DISASTER AGENTS OF AN EARTHQUAKE INTERACT WITH MEXICO’S COMMUNITIES
(INCLUDING THE CAPITAL)
A DISASTER is ---
--- the set of failures that overwhelm the capability of a community to respond without external help when three continuums: 1) people, 2) community (i.e., a set of habitats, livelihoods, and social constructs), and 3) complex events (e.g., earthquakes, floods,…) intersect at a point in space and time.
Disasters are caused by single- or multiple-event natural hazards that, (for various reasons), cause
extreme levels of mortality, morbidity, homelessness,
joblessness, economic losses, or environmental impacts.
THE REASONS ARE . . .
• When it does happen, the functions of the community’s buildings and infrastructure will be LOST because they are UNPROTECTED with the appropriate codes and standards.
THE REASONS ARE . . .
• The community is UN-PREPARED for what will likely happen, not to mention the low-probability of occurrence—high-probability of adverse consequences event.
THE REASONS ARE . . .
• The community has NO DISASTER PLANNING SCENARIO or WARNING SYSTEM in place as a strategic framework for early threat identification and coordinated local, national, regional, and international countermeasures.
THE REASONS ARE . . .
• The community LACKS THE CAPACITY TO RESPOND in a timely and effective manner to the full spectrum of expected and unexpected emergency situations.
THE REASONS ARE . . .
• The community is INEFFICIENT during recovery and reconstruction when it HAS NOT LEARNED from either the current experience or the cumulative prior experiences.
EXAMPLES OF MEXOCO’S PAST EARTHQUAKE
DISASTERS
THE 7:19 AM, M8.1 EARTHQUAKE
OF
SEPTEMBER 19, 1985
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 MODERN BUILDING CODE ADOPTED AND IMPLEMENTED BEFORE THE EARTHQUAKE WAS INADEQUATE
• ALTHOUGH LARGER THAN USUAL, THE EARTHQUAKE WAS NOT A “SURPRISE”
• A MODERN BUILDING CODE ADOPTED AND IMPLEMENTED BEFORE THE EARTHQUAKE WAS INADEQUATE
1985 MEXICO EARTHQUAKE1985 MEXICO EARTHQUAKE• EPICENTER
LOCATED 240 KM FROM MEXICO CITY
• EPICENTER LOCATED 240 KM FROM MEXICO CITY
• 412 BUILDINGS COLLAPSED IN OLD LAKE BED ZONE OF MEXICO CITY
• 2 SECOND PERIOD SOIL-STRUCTURE RESONANCE IN OLD LAKE BED ZONE WAS A MAJOR FACTOR IN COLLAPSES
• 412 BUILDINGS COLLAPSED IN OLD LAKE BED ZONE OF MEXICO CITY
• 2 SECOND PERIOD SOIL-STRUCTURE RESONANCE IN OLD LAKE BED ZONE WAS A MAJOR FACTOR IN COLLAPSES
1985 MEXICO EARTHQUAKE: SOIL AMPLIFICATION
1985 MEXICO EARTHQUAKE: SOIL AMPLIFICATION
COLLAPSE OF CRITICAL STRUCTURES--HOSPITALSCOLLAPSE OF CRITICAL
STRUCTURES--HOSPITALS
COLLAPSE: ESSENTIAL STRUCTURES--SCHOOLSCOLLAPSE: ESSENTIAL
STRUCTURES--SCHOOLS
STEEL FRAME BUILDINGS STEEL FRAME BUILDINGS
POUNDING POUNDING
NUEVA LEON APARTMENT BUILDINGS
NUEVA LEON APARTMENT BUILDINGS
SEARCH AND RESCUESEARCH AND RESCUE
SEARCH AND RESCUE SEARCH AND RESCUE
TELECOMMUNICATIONS (SCT)TELECOMMUNICATIONS (SCT)
RAILROAD TRACKSRAILROAD TRACKS
IMPACTS
• Although the epicenter was located far from Mexico city, the soft soil of the old lake bed the city is sited on amplified the ground shaking in Mexico City, damaging 3,124 buildings, collapsing 412 of them and killing between 10,000 – 40,000 people.
IMPACTS
• The economic loss was between $3-4 billion.
LARGE MAGNITUDE EARTHQUAKES IN MEXICO ARE INEVITABLE
LARGE MAGNITUDE EARTHQUAKES IN MEXICO ARE INEVITABLE
• ---SO, DON’T WAIT FOR ANOTHER REMINDER OF THE IMPORTANCE OF BECOMING EARTHQUAKE DIS-ASTER RESILIENT.
THE ALTERNATIVE TO AN EARTHQUAKE DISASTER IS
EARTHQUAKE DISASTER RESILIENCE
THE ALTERNATIVE TO AN EARTHQUAKE DISASTER IS
EARTHQUAKE DISASTER RESILIENCE
TURKEY’S COMMUNITIES
TURKEY’S COMMUNITIES
DATA BASES AND INFORMATIONDATA BASES AND INFORMATION
HAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS
• EARTHQUAKE HAZARDS
• INVENTORY• VULNERABILITY• LOCATION
EARTHQUAKE RISK
RISK
ACCEPTABLE RISK
UNACCEPTABLE RISK
EARTHQUAKE DISASTER RESILIENCE
• PREPAREDNESS• PROTECTION• FORECASTS/SCENARIOS• EMERGENCY RESPONSE• RECOVERY and RECONSTRUCTION
POLICY OPTIONS
LESSONS LEARNED ABOUT DISASTER RESILIENCE
ALL EARTHQUAKES
PREPAREDNESS FOR ALL OF THE LIKELY AND UNLIKELY HAZARDS AND RISKS IS ESSENTIAL FOR DISASTER RESILIENCE
LESSONS LEARNED ABOUT DISASTER RESILIENCE
ALL EARTHQUAKES
PROTECTION OF BUILDINGS AND INFRASTRUCTURE AGAINST COLLAPSE AND LOSS OF FUNCTION IS ESSENTIAL FOR DISASTER RESILIENCE
LESSONS LEARNED ABOUT DISASTER RESILIENCE
ALL EARTHQUAKES TECHNOLOGIES THAT FACILITATE PREPARATION OF DISASTER SCENARIOS ARE ESSENTIAL FOR DISASTER RESILIENCE
LESSONS LEARNED ABOUT DISASTER RESILIENCE
ALL EARTHQUAKES
TIMELY EMERGENCY RESPONSE IS ESSENTIAL FOR DISASTER RESILIENCE
STRATEGIC COLLABORATION (I.E., WORKING TOGETHER ON A
COMMON GOAL)
FOR BECOMING EARTHQUAKE DISASTER
RESILIENT
STRATEGIC COLLABORATION (I.E., WORKING TOGETHER ON A
COMMON GOAL)
FOR BECOMING EARTHQUAKE DISASTER
RESILIENT
QUESTION
• WHAT DOES A CITY OR A MEGACITY DO TO MAKE ITS BUILDINGS LESS VULNERABLE TO EARTHQUAKES?