Summary Red Alert M 8.8, OFFSHORE MAULE, CHILE PAGER Origin Time: Sat 2010-02-27 06:34:14 UTC (02:34:14 local) o o Version 3 Location: 35.85 S 72.72 W Depth: 35 km Created: 3 hours, 10 minutes after earthquake Estimated Fatalities Red alert level for economic losses. Widespread Estimated Economic Losses damage is likely and the disaster is potentially widespread. Estimated economic losses are 0-1% GDP of Chile. Past events with this alert

49% 45% level have required a national or international 44% level response. 37%

7% 11% Orange alert level for fatalities. Significant casualties are likely. 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 - -* - -* 479k* 2,112k* 3,589k 6,284k 3,028k 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 77°W 75°W 73°W 71°W 69°W earthquake resistant construction. The V predominant vulnerable building types are LaLaLa LiguaLiguaLigua LaLaLa LiguaLiguaLigua low-rise reinforced/confined masonry and SanSan FelipeFelipe adobe block construction. ValparaisoValparaiso 33°S SantiagoSantiago Historical Earthquakes (with MMI levels): SanSan AntonioAntonio Date Dist. Mag. Max Shaking PainePainePaine (km) MMI(#) Deaths RancaguaRancagua 1975-05-10 264 7.8 VIII(69k) 0 SanSanSan VicenteVicenteVicente 1985-03-03 363 7.0 IX(185k) 0 SantaSantaSanta CruzCruzCruz 1985-03-03 314 7.9 VII(5,449k) 177 CuricoCurico Recent earthquakes in this area have caused VIIVIIVII 35°S VII MolinaMolina tsunamis, landslides and liquefaction that TalcaTalca may have contributed to losses. SanSanSan JavierJavierJavier

VIVIVI LinaresLinares LongaviLongaviLongavi ParralParralParral

SanSanSan CarlosCarlosCarlos Selected City Exposure from GeoNames.org TomeTomeTome CoihuecoCoihueco ConcepcionConcepcion MMI City Population

VIIIVIIIVIII VIIIVIIIVIII LotaLotaLota YumbelYumbelYumbel 37°S VIII Arauco 25k AraucoArauco LaLaLa LajaLajaLaja AraucoArauco LaLaLa LajaLajaLaja VIII Lota 50k NacimientoNacimiento LebuLebuLebu VIII Concepcion 215k MulchenMulchen CaneteCanete AngolAngol CollipulliCollipulli VIII Constitucion 38k

TraiguenTraiguenTraiguen VII Bulnes 13k

LautaroLautaroLautaro VII Cabrero 18k V VVV TemucoTemuco VII Talca 197k PitrufquenPitrufquenPitrufquen Cutral-CoCutral-Co PitrufquenPitrufquenPitrufquen km 39°S VII Rancagua 213k VI Santiago 4,837k LoncocheLoncocheLoncoche 0 100 200 PanguipulliPanguipulliPanguipulli VI Temuco 238k ValdiviaValdivia VI Valparaiso 282k This information was automatically generated. bold cities appear on map (k = x1000) http://earthquake.usgs.gov/pager Event ID: us2010tfan