Earthquake Orange Shaking Alert M 7.6, COSTA RICA Origin Time: Wed 2012-09-05 14:42:07 UTC (08:42:07 local) PAGER o o Location: 10.07 N 85.31 W Depth: 35 km Version 10 FOR TSUNAMI INFORMATION, SEE: tsunami.noaa.gov Created: 1 week, 5 days after earthquake Estimated Fatalities Orange alert level for economic losses. Estimated Economic Losses Significant damage is likely and the disaster is potentially widespread. Estimated economic losses are 0-1% GDP of Costa Rica. Past events with this alert level have required a 35% 33% 32% regional or national level response. 28% 19% 20% 14% 10% 3% Yellow alert level for shaking-related fatalities. 2% 5% 1% Some casualties are possible. 1 100 10,000 1 100 10,000 10 1,000 100,000 10 1,000 100,000 Fatalities USD (Millions) Estimated Population Exposed to Earthquake Shaking ESTIMATED POPULATION - -* 216k* 4,271k* 3,917k 955k 332k 3k 0 0 EXPOSURE (k = x1000) ESTIMATED MODIFIED MERCALLI INTENSITY PERCEIVED SHAKING Not felt Weak Light Moderate Strong Very Strong Severe Violent Extreme

Resistant none none none V. Light Light Moderate Moderate/Heavy Heavy V. Heavy POTENTIAL Structures DAMAGE Vulnerable Structures none none none Light Moderate Moderate/Heavy Heavy V. Heavy V. Heavy *Estimated exposure only includes population within the map area. Population Exposure population per ~1 sq. km from Landscan Structures: Overall, the population in this region resides in structures that are a mix of vulnerable and 88°W 86°W 84°W earthquake resistant construction. The predominant vulnerable building types are adobe block and mud wall construction.

Historical Earthquakes (with MMI levels): JuigalpaJuigalpaJuigalpa CarlosCarlos FonsecaFonsecaMasayaMasaya AmadorAmador AcoyapaAcoyapa BluefieldsBluefields CarlosCarlos FonsecaFonsecaMasayaMasaya AmadorAmador AcoyapaAcoyapa 12°N Date Dist. Mag. Max Shaking DiriambaDiriamba NandaimeNandaime NandaimeNandaime NuevaNueva GuineaGuinea (UTC) (km) MMI(#) Deaths MorritoMorrito MoyogalpaMoyogalpa 2000-02-20 188 5.6 VI(19k) 0 RivasRivas SanSanSan MiguelitoMiguelitoMiguelito SanSanSan MiguelitoMiguelitoMiguelito 1993-07-10 193 5.8 VIII(893) 1 SanSanSan JuanJuanJuan deldeldel SurSurSur IVIV SanSanSan CarlosCarlosCarlos IVIVIVIV 1991-04-22 254 7.6 VII(213k) 75 LaLaLa CruzCruzCruz SanSanSan CarlosCarlosCarlos LaLaLa CruzCruzCruz LosLosLos ChilesChilesChiles SanSanSan JoseJoseJose 11°N Recent earthquakes in this area have caused

BijaguaBijagua secondary hazards such as tsunamis, LiberiaLiberiaLiberia landslides, and liquefaction that might have BagacesBagaces SardinalSardinalSardinalBagacesBagaces FortunaFortunaFortuna CanasCanas FortunaFortunaFortunaPitalPitalPital contributed to losses. BelenBelen CanasCanas QuesadaQuesada JuntasJuntasJuntas SantaSantaSanta CruzCruzCruz GuapilesGuapiles NicoyaNicoya ZarceroZarcero GuapilesGuapiles NicoyaNicoya ZarceroNaranjoZarceroNaranjo SiquirresSiquirresSiquirres HojanchaHojancha NaranjoNaranjo SiquirresSiquirresSiquirres PuntarenasPuntarenasPuntarenas SanSan JoseJose 10°N SamaraSamaraSamara SantiagoSantiagoSantiago PaqueraPaqueraPaquera SantiagoSantiagoSantiago ParaisoParaisoParaiso TejarTejarTejar Selected City Exposure from GeoNames.org JacoJacoJaco VIVI ParritaParritaParrita MMI City Population SanSanSan IsidroIsidroIsidro VIII Santa Cruz 12k VII Nandayure 2k VVV CiudadCiudad CortesCortes 9°N VII Nicoya 15k VolcanVolcan CorredorCorredor VII Chacarita 26k CanoasCanoas DivalaDivala VII Hojancha 2k VII Samara 1k IV 8°N V San Jose 335k km IV Managua 973k IV Masaya 130k 0 75 150 IV Leon 145k III David 83k PAGER content is automatically generated, and only considers losses due to structural damage. bold cities appear on map (k = x1000) Limitations of input data, shaking estimates, and loss models may add uncertainty. http://earthquake.usgs.gov/pager Event ID: usc000cfsd