Earthquake Green Shaking Alert M 5.5, Origin Time: Wed 2017-01-11 22:06:58 UTC (01:06:58 local) PAGER o o Location: 20.16 S 46.65 E Depth: 7 km Version 3 Created: 4 weeks, 1 day after earthquake Estimated Fatalities Green alert for shaking-related fatalities Estimated Economic Losses and economic losses. There is a low

75% likelihood of casualties and damage. 76%

25% 24%

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 - -* 10,990k 1,152k 17k 0 0 0 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 vulnerable to earthquake shaking, though some resistant 45°E 46°E 47°E IIIIII IIIIII structures exist.

Historical Earthquakes (with MMI levels): Date Dist. Mag. Max Shaking 19°S (UTC) (km) MMI(#) Deaths

SoavinandrianaSoavinandrianaSoavinandriana 1975-04-04 187 5.6 VII(106) 0 SoavinandrianaSoavinandrianaSoavinandriana AndramasinaAndramasina 1985-10-04 283 5.5 VII(1) 0 AmbatolampyAmbatolampy FaratsihoFaratsihoFaratsiho AmbatolampyAmbatolampy 1991-04-21 198 5.5 VII(6) 0

MiandrivazoMiandrivazo AntanifotsyAntanifotsy

IIIIIIIII IIIIIIIII BetafoBetafo IVIVIV MarolamboMarolambo20°S

FandrianaFandrianaFandriana Selected City Exposure from GeoNames.org AmbositraAmbositra MMI City Population IV 30k IV Ambatofinandrahana 26k III Ambositra 30k 21°S III 71k IkalamavonyIkalamavonyIkalamavony III 1,391k IfanadianaIfanadianaIfanadiana IfanadianaIfanadianaIfanadiana III Fandriana 31k FianarantsoaFianarantsoa III 38k km III Soavinandriana 40k BerorohaBeroroha III Nosy Varika 37k AmbalavaoAmbalavao 0 50 100 IkongoIkongoIkongo III Fianarantsoa 167k 22°S II Ikongo 32k 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/earthquakes/eventpage/us10007snb Event ID: us10007snb