Earthquake Green Shaking Alert M 5.4, , Origin Time: Fri 2015-03-20 22:30:07 UTC (17:30:07 local) PAGER o o Location: 18.03 N 98.51 W Depth: 52 km Version 6 Created: 10 weeks, 5 days after earthquake Estimated Fatalities Green alert for shaking-related fatalities Estimated Economic Losses 99% and economic losses. There is a low 99% likelihood of casualties and damage.

1% 1%

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 - -* 41,965k 452k 0 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 a mix of vulnerable and 100°W 99°W 98°W earthquake resistant construction.

II II Historical Earthquakes (with MMI levels): Date Dist. Mag. Max Shaking (UTC) (km) MMI(#) Deaths 19.25°N 1998-07-11 310 5.4 V(3k) 0 TenangoTenangoTenango dedede AristaAristaArista PueblaPuebla dede ZaragozaZaragoza SanSanSan PedroPedroPedro ZictepecZictepecZictepec OzumbaOzumba dede AlzateAlzate PueblaPuebla dede ZaragozaZaragoza 1994-07-04 376 6.4 V(60k) 2 AlmoloyaAlmoloya CuernavacaCuernavaca TepeacaTepeacaTepeaca CiudadCiudad SerdanSerdan TejupilcoTejupilcoTejupilco dedede HidalgoHidalgoHidalgo CuernavacaCuernavaca AtlixcoAtlixco 1973-08-28 203 7.2 VII(847k) 600 YautepecYautepecYautepec AtlixcoAtlixco TecamachalcoTecamachalcoTecamachalcoXaltepecXaltepec CordobaCordoba IxtapanIxtapanIxtapan dedede lalala SalSalSal RioRio BlancoBlanco CuautlaCuautla MorelosMorelos CuichapaCuichapa Recent earthquakes in this area have caused PilcayaPilcayaPilcaya CuichapaCuichapa PilcayaPilcayaPilcaya CoatetelcoCoatetelco SanSanSan MarcosMarcosMarcos TlacoyalcoTlacoyalcoTlacoyalco secondary hazards such as landslides that LaLaLa JoyaJoyaJoya ZacatepecZacatepec SanSanSan MarcosMarcosMarcos TlacoyalcoTlacoyalcoTlacoyalco TepalcingoTepalcingoTepalcingo IzucarIzucarIzucar dedede MatamorosMatamorosMatamoros might have contributed to losses. TaxcoTaxco dede AlarconAlarcon SantiagoSantiagoSantiago MiahuatlanMiahuatlanMiahuatlan AxochiapanAxochiapan AxochiapanAxochiapan TehuacanTehuacan TlalchapaTlalchapaTlalchapa TeloloapanTeloloapanTeloloapanIgualaIgualaIguala dedede lalala IndependenciaIndependenciaIndependencia AjalpanAjalpan ArceliaArcelia SanSanSan GabrielGabrielGabriel ChilacChilacChilac CoculaCocula AcatlanAcatlan dede OsorioOsorio 18.25°N ApaxtlaApaxtla dede CastrejonCastrejon CopalilloCopalillo TulcingoTulcingoTulcingo deldeldel ValleValleValle IIIIIIIII IIIIIIIII

XochihuehuetlanXochihuehuetlan CiudadCiudad dede HuajuapamHuajuapam dede LeonLeon Selected City Exposure TlacotepecTlacotepecTlacotepec HuamuxtitlanHuamuxtitlan CiudadCiudad dede HuajuapamHuajuapam dede LeonLeon HuitziltepecHuitziltepec from GeoNames.org TamazulapanTamazulapanTamazulapan deldeldel ProgresoProgresoProgreso ZumpangoZumpango deldel RioRio TamazulapanTamazulapanTamazulapan deldeldel ProgresoProgresoProgreso MMI City Population ChilpancingoChilpancingo dede loslos BravosBravos PetaquillasPetaquillasPetaquillas XalpatlahuacXalpatlahuac IV 12k XalpatlahuacXalpatlahuac AsuncionAsuncion NochixtlanNochixtlan QuechultenangoQuechultenango SantiagoSantiagoSantiago JuxtlahuacaJuxtlahuacaJuxtlahuaca IV Huehuetlan El Chico 5k SantaSantaSanta MariaMariaMaria AsuncionAsuncionAsuncion TlaxiacoTlaxiacoTlaxiaco ElElEl OcotitoOcotitoOcotito SantaSantaSanta MariaMariaMaria AsuncionAsuncionAsuncion TlaxiacoTlaxiacoTlaxiaco AtoyacAtoyac dede AlvarezAlvarez 17.25°N IV 5k TierraTierraTierra ColoradaColoradaColorada SanSanSan JeronimoJeronimoJeronimo dedede JuarezJuarezJuarez TierraTierraTierra ColoradaColoradaColorada XaltianguisXaltianguis IV Ayutla 7k PutlaPutlaPutla dedede GuerreroGuerreroGuerrero CoyucaCoyuca dede BenitezBenitez PutlaPutlaPutla dedede GuerreroGuerreroGuerrero IV Axochiapan 18k AcapulcoAcapulco dede JuarezJuarez SanSanSan MarcosMarcosMarcos SanSanSan LuisLuisLuis AcatlanAcatlanAcatlan III 12,294k SanSanSan MarcosMarcosMarcos SantaSantaSanta MariaMariaMaria ZacatepecZacatepecZacatepec CruzCruz GrandeGrande AzoyuAzoyu CruzCruz GrandeGrande OmetepecOmetepec III 344k SanSanSan PedroPedroPedro AmuzgosAmuzgosAmuzgos CopalaCopala CopalaCopala km III 506k CuajinicuilapaCuajinicuilapa PinotepaPinotepaPinotepa dedede DonDonDon LuisLuisLuis II Xalapa de Enriquez 425k SantiagoSantiagoSantiago PinotepaPinotepaPinotepa NacionalNacionalNacional IIIIII SantiagoSantiagoSantiago PinotepaPinotepaPinotepa0 NacionalNacionalNacional50 100 bold cities appear on map (k = x1000) SanSanSan MiguelMiguelMiguel PanixtlahuacaPanixtlahuacaPanixtlahuaca16.25°N PAGER content is automatically generated, and only considers losses due to structural damage. Limitations of input data, shaking estimates, and loss models may add uncertainty. http://earthquake.usgs.gov/pager Event ID: us10001pbh