Light mag. 4.5 earthquake - 12 km southeast of Atoyac de Alvarez, Guerrero, Mexico, on Wednesday, Oct 13, 2021 1:38 pm (GMT -5) -

This quake was likely an aftershock of the 7.1 quake North Pacific Ocean, 8 km south of Acapulco de Juarez, Guerrero, Mexico, Sep 7, 2021 8:47 pm (GMT -5), which had occurred 5 weeks earlier.
Light mag. 4.5 earthquake - 12 km southeast of Atoyac de Alvarez, Guerrero, Mexico, on Wednesday, Oct 13, 2021 1:38 pm (GMT -5)

Light magnitude 4.5 earthquake at 37 km depth

13 Oct 18:45 UTC: First to report: VolcanoDiscovery after 7 minutes.
13 Oct 18:56: Now using data updates from SSN
Date & time: Oct 13, 2021 18:38:21 UTC -
Local time at epicenter: Wednesday, Oct 13, 2021 1:38 pm (GMT -5)
Magnitude: 4.5
Depth: 37.0 km
Epicenter latitude / longitude: 17.12°N / 100.37°W (Atoyac de Alvarez, Guerrero, Mexico)
Antipode: 17.12°S / 79.63°E
Nearest volcano: Nevado de Toluca (244 km / 152 mi)
Nearby towns and cities:
1 km (1 mi) S of Charco Largo (pop: 13) --> See nearby quakes!
11 km (7 mi) ENE of Hacienda de Cabañas (pop: 2,010) --> See nearby quakes!
12 km (7 mi) SE of Atoyac de Alvarez (Atoyac de Álvarez) (pop: 21,400) --> See nearby quakes!
16 km (10 mi) NW of El Papayo (pop: 2,250) --> See nearby quakes!
29 km (18 mi) WSW of Tepetixtla (pop: 3,640) --> See nearby quakes!
30 km (19 mi) ESE of Técpan de Galeana (pop: 15,100) --> See nearby quakes!
33 km (20 mi) WNW of Coyuca de Benitez (Coyuca de Benítez) (pop: 13,600) --> See nearby quakes!
58 km (36 mi) WNW of Acapulco de Juarez (pop: 673,500) --> See nearby quakes!
104 km (64 mi) WSW of Chilpancingo (pop: 187,300) --> See nearby quakes!
288 km (179 mi) SSW of Mexico City (pop: 12,294,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 31°C (88 F), humidity: 68%, wind: 3 m/s (6 kts) from SW
Primary data source: SSN (Servicio Sismológico Nacional)
Estimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 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.

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Pedregal De Cantaluna. (40.5 km ESE of epicenter) [Map] / Moderate shaking (MMI V) / single lateral shake / 2-5 s : watching tv and the house shook violently. heard a rumble for a few seconds before it hit. a solid shake then softer with rumble | 3 users found this interesting.  
Coyuca de Benítez / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s
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