Moderate mag. 4.0 earthquake - 56 km southwest of Tonalá, Chiapas, Mexico, on 2020-10-16 15:23:58 (Hora de México)
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Moderate magnitude 4.0 earthquake at 11 km depth
16 Oct 20:41 UTC: First to report: EMSC after 17 minutes.
16 Oct 20:42: Now using data updates from SSN
16 Oct 20:42: Now using data updates from SSN
Local time at epicenter: 2020-10-16 15:23:58 (Hora de México)
Magnitude: 4
Depth: 11.0 km
Epicenter latitude / longitude: 15.63°N / 93.96°W

Antipode: 15.63°S / 86.04°E
Nearest volcano: Tacana (206 km / 128 mi)
Nearby towns and cities:
39 km (24 mi) SW of Santa Teresita (pop: 12) --> See nearby quakes!
44 km (28 mi) WSW of Manuel Avila Camacho (Ponte Duro) (pop: 1,780) --> See nearby quakes!
48 km (30 mi) SSW of Paredon (Paredón) (pop: 6,130) --> See nearby quakes!
56 km (35 mi) SSW of Tonala (Tonalá) (pop: 35,300) --> See nearby quakes!
61 km (38 mi) WSW of Tamaulipas (pop: 1,570) --> See nearby quakes!
61 km (38 mi) S of Emiliano Zapata (pop: 3,350) --> See nearby quakes!
68 km (42 mi) S of Arriaga (pop: 24,400) --> See nearby quakes!
79 km (49 mi) SW of Monterrey (pop: 1,090) --> See nearby quakes!
93 km (58 mi) SW of Francisco Villa (pop: 1,360) --> See nearby quakes!
692 km (430 mi) SE of Mexico (pop: 12,294,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds
28.8°C (84 F), humidity: 74%, wind: 4 m/s (7 kts) from WSW
Primary data source: SSN (Servicio Sismológico Nacional)
Scattered Clouds

Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | about seismic energy
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.
Mag. | Depth | Location | Source |
4.0 | 11 km | 55 Km Al SUROESTE De TONALA, CHIS, Mexico | SSN |
4.0 | 11 km | Offshore Chiapas, Mexico | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
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