Haiti earthquake presentation slides - PEER

Haiti EarthquakeJanuary 12, 2010By Eduardo FierroBFP Engineers, Inc.Bertero Fierro Perry

Current StatisticsHuman Toll150,000: Latest estimate of the death toll, fromthe Haitian Health Ministry. The European Unionand the Pan American Health Organization,which are coordinating the health-sectorresponse, have estimated the quake killed200,000 people.194,000: Number of injured134: Estimated number of people rescued byinternational search teams since the quake

Current StatisticsEffect on people9 million: Population of Haiti3 million: Estimated number of people affected by thequake1 million: Estimated number of displaced people800,000 to 1 million: People who need temporaryshelter235,000: People who have left Port-auau-Prince using freetransportation provided by the government. The numberwho left by private means is undetermined.At least 50: Aftershocks of magnitude 4.5 or higher thathave hit Haiti since the January 12 quake

Current StatisticsEffect on Foreigners12,000: U.N. workers in the country at the time of thequake53: U.N. workers still missingAt least 82: U.N. workers dead27: U.N. workers injured or hospitalized11,500: Americans and family members who have beenevacuated4,800: Americans unaccounted for

Earthquake Data

LOCATION

Tectonic faults Hispaniola

Historic Earthquakes in La Hispaniola

INTENSITIES

GROUND ACCELERATIONSAS PER USGS

ACCELERATIONS AT A PERIOD OF 0.3 SECAS PER USGS

PEAK GROUND ACCELERATIONS COMPARISON12/01/2010 20/01/20010

ACCELERATIONS AT 0.3 SEC PERIOD COMPARISON12/01/2010 12/20/201020/01/20010

COMPARISON OF INTENSITIES FOR7.0 OF 12/01/2010 AND 5.9 del 20/01/2010

Acceleration Response Spectra HAITI 01/12/2010red data USGSPseudoacceleration(g)0.6350.755New Dominican code Proposal 2008Dominican Code 19790.60.40Terremoto Haiti 20100.30.450.210.180.230.192300.30.5 1.0 3.0Period(Sec)

LANDSLIDES

INITIAL IMPRESION

Typical concrete details

Downtown Port au Prince

Downtown Leogane

School Leogane

University Leogane

Main Port

Fuel Port

Fuel Port next to ElectricPower plants

Airport

Electric power plant

Electric Power Plant Alba

Water Treatment Plant

Water Tank

Fuel Tank Farm

Steel Factory

Cement Factory

Bridges

Electrical transmission andcomunication towersVery little damage unless other elementsfell on top of them

Light structuresMainly canopies for gas stationOne collapsed due to anchorage failure

Away from Epicenter

Reconstruction

ConclusionThe tall structures with long periodsuffered little damage, hinting to lowvalues of spectral acceleration in the longperiod rangeIt appear that there was an amplification ofthe accelerations due to soft soils in Portau Prince, some pocket of no damageClear evidence of directivity west of theepicenter

Conclusion• Maximum acceleration higher than 0.3 gestimated by USGS probably 0.4 to 0.5g• Quality of construction and detailing verypoor with very brittle structure. Very poordetail in the plastic hinge regions and inthe joints• Prevalent use of heavy unreinforced blockwalls• Reconstruction with same detailinghappening now

Thanks to Initial TeamVictor SuarezLuis PenaHector Oreilly

THANKSINGENIERIA ESTRELLAIngeniero Alejandro AdamesIngeniero ÁlvarezIngeniero Felipe RománChief of security PalitoDrivers and companionsDanielRonaldCOOK Cecilia