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MAGNITUDE 7.6 EARTHQUAKE OCCURS OFFSHORE COSTA RICA September 5, 2012 Walter Hays, Global Alliance for Disaster Reduction, University of North Carolina,

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Presentation on theme: "MAGNITUDE 7.6 EARTHQUAKE OCCURS OFFSHORE COSTA RICA September 5, 2012 Walter Hays, Global Alliance for Disaster Reduction, University of North Carolina,"— Presentation transcript:

1 MAGNITUDE 7.6 EARTHQUAKE OCCURS OFFSHORE COSTA RICA September 5, 2012 Walter Hays, Global Alliance for Disaster Reduction, University of North Carolina, USA

2 CAUSE: INTERACTION OF THE COCOS, CARIBBEAN, AND SOUTH AMERICAN PLATES

3 The strong quake, which occurred at 10:42 a.m. EDT, was centered under the Nicoya Peninsula of Costa Rica, 140 km (87 miles) west of the capital, San Jose

4 Seismologists have been predicting a strong quake in that area for years

5 GOOD NEWS—BAD NEWS ABOUT THE LOCATION GOOD NEWS: The earthquake was deep [41 km, 25 mi]. BAD NEWS: The epicenter was 10km (6mi) northeast of Hojancha, Costa Rica and 140km (87mi) west of the capital city, San Jose

6 MORE GOOD NEWS: NO TSUNAMI A tsunami warning was issued immediately for the Pacific coast of Costa Rica, Panama, Nicaragua, El Salvador, Honduras, Mexico, Columbia, Ecuador, Guatemala and Peru, and lifted after a few hours.

7 THE BEST NEWS Damage, mortality, and morbidity were surprisingly light for two reasons: 1) the deep focal depth, and 2) the implementation of a modern building code with seismic provisions.

8 SOCIOECONOMIC IMPACTS Costa Rica's National Emergency Commission reported debris on roads, power outages and some structural damage in homes, especially on the Nicoya Peninsula

9 SOCIOECONOMIC IMPACTS (continued) Only one person died (a heart attack). Red Cross ambulances evacuated patients from two damaged hospitals.

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