Light mag. 4.0 earthquake - North Pacific Ocean, 52 km southeast of Salina Cruz, Oaxaca, Mexico, on Monday, Sep 27, 2021 11:09 pm (GMT -6) -

Light mag. 4.0 earthquake - North Pacific Ocean, 52 km southeast of Salina Cruz, Oaxaca, Mexico, on Monday, Sep 27, 2021 11:09 pm (GMT -6)

Light magnitude 4.0 earthquake at 16 km depth

28 Sep 05:32 UTC: First to report: EMSC after 22 minutes.
28 Sep 05:35: Now using data updates from SSN
Date & time: Sep 28, 2021 05:09:47 UTC -
Local time at epicenter: Monday, Sep 27, 2021 11:09 pm (GMT -6)
Magnitude: 4
Depth: 16.0 km
Epicenter latitude / longitude: 15.75°N / 94.99°W (North Pacific Ocean, Mexico)
Antipode: 15.75°S / 85.01°E
Nearby towns and cities:
50 km (31 mi) S of La Reforma (pop: 210) --> See nearby quakes!
52 km (32 mi) SSE of Salina Cruz (pop: 76,600) --> See nearby quakes!
57 km (35 mi) SE of Mazatlan (pop: 2,630) --> See nearby quakes!
64 km (40 mi) S of Santa Rosa (pop: 2,490) --> See nearby quakes!
66 km (41 mi) SW of San Francisco del Mar Viejo (pop: 4,030) --> See nearby quakes!
68 km (42 mi) S of Santa Maria Xadani (pop: 7,610) --> See nearby quakes!
68 km (43 mi) SSW of San Dionisio del Mar (pop: 3,140) --> See nearby quakes!
69 km (43 mi) SSE of Santo Domingo Tehuantepec (Tehuantepec) (pop: 42,100) --> See nearby quakes!
69 km (43 mi) SSE of San Blas Atempa (pop: 12,000) --> See nearby quakes!
600 km (373 mi) SE of Mexico City (pop: 12,294,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds 29°C (84 F), humidity: 71%, wind: 5 m/s (9 kts) from W
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.
4.016 kmMexico: 53 Km Al SURESTE De SALINA CRUZ, OAXSSN

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Bryant AR (2048.1 km N of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating : Just weak vibration felt when lying in bed. No rattling, no movement otherwise.  
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