Moderate mag. 4.7 earthquake - 0.7 km southeast of San Miguel Tlacamama, Oaxaca, Mexico, on Thursday, 21 December 2017 at 03:23 (GMT)

This quake was likely an aftershock of the 8.1 quake North Pacific Ocean, 88 km southwest of Topon, Pijijiapan, Chiapas, Mexico, 8 September 2017 04:49 GMT, which had occurred 15 weeks earlier.
Moderate mag. 4.7 earthquake - 0.7 km southeast of San Miguel Tlacamama, Oaxaca, Mexico, on Thursday, 21 December 2017 at 03:23 (GMT)

Moderate magnitude 4.7 earthquake at 10 km depth

21 Dec 03:31 UTC: First to report: GFZ after 8 minutes.
Date & time: 21 Dec 2017 03:23:38 UTC
Magnitude: 4.7
Depth: 10.0 km
Epicenter latitude / longitude: 16.41°N / 98.06°W (San Miguel Tlacamama, Oaxaca, Mexico)
Nearby towns and cities:
1 km (0 mi) SSE of San Miguel Tlacamama (pop: 2,000) --> See nearby quakes!
8 km (5 mi) N of Pinotepa Nacional (pop: 29,600) --> See nearby quakes!
13 km (8 mi) WSW of San Juan Colorado (pop: 5,560) --> See nearby quakes!
15 km (9 mi) S of San Antonio Tepetlapa (pop: 2,620) --> See nearby quakes!
18 km (11 mi) WNW of San Andrés Huaxpaltepec (pop: 4,150) --> See nearby quakes!
27 km (17 mi) S of San Pedro Amuzgos (pop: 4,930) --> See nearby quakes!
29 km (18 mi) WNW of Jamiltepec (pop: 10,100) --> See nearby quakes!
48 km (30 mi) SE of Ometepec (Guerrero) (pop: 24,100) --> See nearby quakes!
160 km (99 mi) WSW of Oaxaca City (pop: 255,000) --> See nearby quakes!
354 km (220 mi) SSE of Mexico City (pop: 12,294,200) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 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.
MagnitudeDepthLocationSource
M 4.710 kmNear Coast of Guerrero, MexicoGFZ
M 5.014 km- 13km W of San Pedro Jicayan, MexicoUSGS
M 5.040 kmOAXACA, MEXICOEMSC

User reports for this quake (20)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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348.8 km NNW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
Cuernavaca morelos (292.3 km NNW of epicenter) [Map] / Moderate shaking (MMI V) : Si se sintió fuerte citó una sacudida de dos o tres segundos (reported through our app)
HUIXQUILUCAN ESTADO DE MEXICO / Moderate shaking (MMI V)
Santa Lucía del Camino (Mexico, 172 km NE of epicenter) : se sintio un pocito fuerte y no senti (reported through EMSC)
Ciudad de México (Mexico, 378 km NW of epicenter) : Gracias muy bueno (reported through EMSC)
Ecatepec de Morelos (Mexico, 376 km NW of epicenter) : Fue leve (reported through EMSC)
Ciudad de México (Mexico, 369 km NW of epicenter) : Movimiento se alcanzó a percibir ligeramente, de todos modos hay que estar al pendiente (reported through EMSC)
Naucalpan de Juárez (Mexico, 363 km NW of epicenter) : Pues no lo percibi en absoluto (reported through EMSC)
Ciudad de México (Mexico, 358 km NW of epicenter) : De baja intensidad en Colonia Condesa, Ciudad de México (reported through EMSC)
San Andrés Cholula (Mexico, 301 km NW of epicenter) : Alarma de udlap en Puebla. (reported through EMSC)
(Mexico, 253 km N of epicenter) : Algo leve (reported through EMSC)
Santa Lucía del Camino (Mexico, 172 km NE of epicenter) : se sintio medianamente suave (reported through EMSC)
Ciudad López Mateos (Mexico, 373 km NW of epicenter) : Casi imperceptible. Solo causó mareo (reported through EMSC)
Naucalpan de Juárez (Mexico, 367 km NW of epicenter) : Se sintió muy ligero (reported through EMSC)
Ciudad de México (Mexico, 363 km NW of epicenter) : Se sintio un jalon . Muy ligero pero duro lo suficiente para ser perceptible en Miguel Hidalgo CDMX. (reported through EMSC)
Mexico City (Mexico, 358 km NW of epicenter) : Doors moved a bit, so did curtains. No warning sirens or alarms. We did nothing to respond, only keeping alert for any exacerbation. (reported through EMSC)
Nezahualcóyotl (Mexico, 356 km NW of epicenter) : Movimiento moderado, móviles de aire se escuchaban. (reported through EMSC)
Ciudad de México (Mexico, 355 km NW of epicenter) : Se sintió leve, pero se sintió (reported through EMSC)
Ciudad de México (Mexico, 353 km NW of epicenter) : 5.4 de acuerdo al sismológico nacional Mexico (reported through EMSC)
San Andrés Cholula (Mexico, 298 km NW of epicenter) : House was lightly cracking, I felt a softly shaking while I was on the couch (reported through EMSC)
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