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Terremoto moderado mag. 4.9 - 39 km SSW of Ayutla de los Libres, Guerrero, Mexico, lunes, 20 sep 2021 04:36 (GMT -5)

Este terremoto probablemente fue una réplica del terremoto Sismo M 7.1: Océano Pacífico Norte, 8 km al sur de Acapulco, Estado de Guerrero, México, martes, 7 sep 2021 20:47 (GMT -5) que había ocurrido 12 dias antes.
Terremoto moderado mag. 4.9 - 39 km SSW of Ayutla de los Libres, Guerrero, Mexico, lunes, 20 sep 2021 04:36 (GMT -5) Terremoto moderado mag. 4.9 - 39 km SSW of Ayutla de los Libres, Guerrero, Mexico, lunes, 20 sep 2021 04:36 (GMT -5)

Terremoto moderado magnitud 4.9 a 25 km de profundidad

20 Sep 09:54 UTC: Primero en informar: VolcanoDiscovery después de 18 minutos.
20 Sep 10:00: Ahora usando una nueva fuente de datos: SSN

Detalles del terremoto

Fecha y hora20 Sep 2021 09:36:33 UTC
Hora local en el epicentrolunes, 20 sep 2021 04:36 (GMT -5)
Prof.25.0 km
Epicentro latitud / longitud16.65°N / 99.25°W (San Marcos, Estado de Guerrero, México)
Antipode16.65°S / 80.75°E
Intensidad del temblorTemblor débil
Sentido5 informes
Fuente primaria de datosSSN (Servicio Sismológico Nacional)
Lugares cercanos3 km al NO de Boca del Rio (pop: 492) | En el mapa | Sismos cercanos
13 km al S de Las Vigas (pop: 4,500) | En el mapa | Sismos cercanos
16 km al OSO de Florencio Villarreal (Cruz Grande) (pop: 11,800) | En el mapa | Sismos cercanos
22 km al SE de San Marcos (pop: 13,300) | En el mapa | Sismos cercanos
29 km al O de Copala (pop: 6,620) | En el mapa | Sismos cercanos
39 km al SSO de Ayutla de los Libres (pop: 15,400) | En el mapa | Sismos cercanos
74 km al ESE de Acapulco (pop: 673,500) | En el mapa | Sismos cercanos
90 km al O de Ometepec (pop: 24,100) | En el mapa | Sismos cercanos
104 km al SSE de Chilpancingo de los Bravo (pop: 187,300) | En el mapa | Sismos cercanos
309 km al S de Ciudad de México (pop: 12,294,200) | En el mapa | Sismos cercanos
Tiempo en el epicentro en el momento del sismoOvercast Clouds 24.9°C (77 F), humidity: 88%, wind: 2 m/s (3 kts) from N
Energía sísmica estimada liberada1.4 x 1012 joules (392 MWh, equivalente a 338 toneladas de TNT) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
4.925 kmMexico: 22 Km Al SURESTE De SAN MARCOS, GROSSN
4.520 kmGuerrero, MexicoGFZ
4.610 km7 Km SW of Cruz Grande, MexicoUSGS


Seismic station: TLAPA (TLIG/MX network) | Distance from quake: 125 km / 78 mi | Show on map | Station Info
Seismic station TLAPA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (7)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
Marcar como inapropiado.
Mark as helpful or interesting.
Send your own user report!
near Cruz Grande, Florencio Villarreal, Guerrero (2.4 km ENE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Se sintió cómo 3 brincos como si pasara un Trailer pesado aquí afuera en realidad fue muy rápido y por una parte pensamos que ya estábamos siscados pero en si si paso pues los vidrios de las ventanas y el balcón sonaron | One user found this interesting.  
Copala, Guerrero (30.2 km E of epicenter) [Map] / Moderate shaking (MMI V) / vibration and rolling / very short : Estaba acostada en un colchon sobre el piso, escuche la sacudida de los muebles y del espejo, sentí que estuvo medio fuerte, pero duro muy poco  
Cdmx / not felt (reported through our app)
Estado de México / not felt (reported through our app)
Yautepec Morelos México / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Me despertó el movimiento y el crujir de mi edificio  
Ciudad de México / Very weak shaking (MMI II) : Movimiento ligero de objetos colgantes  
Ixtepec, Oaxaca / Very weak shaking (MMI II) / 2-5 s : Agitación de la ventana de mi habitación y balanceo en mi habitación muy leve  

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