Moderate mag. 4.0 earthquake - North Pacific Ocean, 10.3 km southeast of Acapulco de Juarez, Guerrero, Mexico, on Thursday, Sep 16, 2021 11:56 am (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 9 days earlier.
Moderate mag. 4.0 earthquake - North Pacific Ocean, 10.3 km southeast of Acapulco de Juarez, Guerrero, Mexico, on Thursday, Sep 16, 2021 11:56 am (GMT -5)

Moderate magnitude 4.0 earthquake at 3 km depth

16 Sep 17:14 UTC: First to report: SSN after 18 minutes.
Date & time: Sep 16, 2021 16:56:02 UTC -
Local time at epicenter: Thursday, Sep 16, 2021 11:56 am (GMT -5)
Magnitude: 4
Depth: 3.0 km
Epicenter latitude / longitude: 16.77°N / 99.86°W (North Pacific Ocean, Mexico)
Antipode: 16.77°S / 80.14°E
Nearby towns and cities:
9 km (5 mi) WSW of Fraccionamiento Campestre de la Laguna (pop: 163) --> See nearby quakes!
10 km (6 mi) SSE of Acapulco de Juarez (pop: 673,500) --> See nearby quakes!
13 km (8 mi) SSW of Colonia Alborada (pop: 1,020) --> See nearby quakes!
21 km (13 mi) WSW of Amatillo (pop: 3,300) --> See nearby quakes!
24 km (15 mi) SSE of Bajos del Ejido (pop: 6,170) --> See nearby quakes!
27 km (17 mi) SSW of Kilometro 30 (Centro) (pop: 6,300) --> See nearby quakes!
36 km (22 mi) SE of Coyuca de Benitez (Coyuca de Benítez) (pop: 13,600) --> See nearby quakes!
40 km (25 mi) SSW of Xaltianguis (Centro) (pop: 6,970) --> See nearby quakes!
78 km (48 mi) SE of Atoyac de Alvarez (Atoyac de Álvarez) (pop: 21,400) --> See nearby quakes!
306 km (190 mi) SSW of Mexico City (pop: 12,294,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds 30°C (86 F), humidity: 74%, wind: 2 m/s (4 kts) from SW
Primary data source: SSN (Servicio Sismológico Nacional)
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 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.
4.03 kmMexico: 12 Km Al SURESTE De ACAPULCO, GROSSN

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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