Terremoto moderado mag. 4.3 - Niza Viahui, 24 km W of Juchitan de Zaragoza, Oaxaca, Mexico, Thursday, 29 Apr. 2021 -

Terremoto moderado mag. 4.3 - Niza Viahui, 24 km W of Juchitan de Zaragoza, Oaxaca, Mexico, Thursday, 29 Apr. 2021

Terremoto moderado magnitud 4.3 at 3 km depth

29 Apr 20:35 UTC: Primero en informar: SSN después de 13 minutos.
30 Apr 01:00: Magnitud recalculada de 4.2 a 4.3. Ubicación del epicentro corregida 1.1 km (0.7 mi) al O.
Update Thu, 29 Apr 2021, 20:39
Moderate 4.2 quake hits near Juchitan de Zaragoza, Heroica Ciudad de Juchitán de Zaragoza, Oaxaca, Mexico
4.2 quake 29 Apr 3:21 pm (GMT -5)
4.2 quake 29 Apr 3:21 pm (GMT -5)
A very shallow magnitude 4.2 earthquake was reported early afternoon near Juchitan de Zaragoza, Heroica Ciudad de Juchitán de Zaragoza, Oaxaca, Mexico.
According to Mexico's National Seismological Service (SSN), the quake hit on Thursday 29 April 2021 at 3:21 pm local time at a very shallow depth of 3 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.2 earthquake as well.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Colonia Deportivo (pop. 13) located 4 km from the epicenter, and San Pedro Comitancillo (pop. 3,900) 8 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Ixtepec (pop. 25,400) located 16 km from the epicenter, San Blas Atempa (pop. 12,000) 17 km away, Santo Domingo Tehuantepec (pop. 42,100) 17 km away, Juchitan de Zaragoza (pop. 74,800) 23 km away, and Salina Cruz (pop. 76,600) 34 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Matias Romero (pop. 18,900) located 49 km from the epicenter.
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Earthquake data:

Fecha & hora: 29 Apr 2021 20:21:40 UTC -
Hora local al epicentro: Thursday, 29 Apr 2021 15:21 (GMT -5)
Magnitud: 4.3
Profundidad: 3.0 km
Epicentro latitud / longitud: 16.48°N / 95.24°W (Niza Viahui, Estado de Oaxaca, México)
Volcán mas cercano: San Martín (233 km / 145 mi)
Nearby towns and cities:
5 km al OSO de Colonia Deportivo (pop: 13) --> ¡Vea sismos cercanos!
17 km al N de San Blas Atempa (pop: 12,000) --> ¡Vea sismos cercanos!
17 km al OSO de San Geronimo Ixtepec (Ixtepec) (pop: 25,400) --> ¡Vea sismos cercanos!
17 km al N de Santo Domingo Tehuantepec (Tehuantepec) (pop: 42,100) --> ¡Vea sismos cercanos!
22 km al ENE de Santa Maria Jalapa del Marqués (pop: 9,000) --> ¡Vea sismos cercanos!
24 km al O de Heroica Ciudad de Juchitán de Zaragoza (pop: 74,800) --> ¡Vea sismos cercanos!
34 km al N de Salina Cruz (pop: 76,600) --> ¡Vea sismos cercanos!
49 km al SSO de Matías Romero Avendaño (pop: 18,900) --> ¡Vea sismos cercanos!
171 km al ESE de Oaxaca (pop: 255,000) --> ¡Vea sismos cercanos!
526 km al SE de Ciudad de México (Mexico City) (pop: 12,294,200) --> ¡Vea sismos cercanos!
Weather at epicenter at time of quake:
Overcast Clouds 31.6°C (89 F), humidity: 45%, wind: 9 m/s (17 kts) from SSE
Fuente primaria de datos: SSN (Servicio Sismológico Nacional)
Energía liberada estimada: 1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) More info
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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.
4.33 km17 Km Al SUROESTE De CD IXTEPEC, OAX, MexicoSSN

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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