Light mag. 4.0 earthquake - 11 km west of Salina Cruz, Oaxaca, Mexico, on 2020-10-20 23:04:33 (Hora de México)
Quake Data | Interactive map | User Reports | Earlier quakes here | Quakes in Mexico | Oaxaca | Mexico D.F.


Light magnitude 4.0 earthquake at 15 km depth
21 Oct 04:14 UTC: First to report: SSN after 10 minutes.
Local time at epicenter: 2020-10-20 23:04:33 (Hora de México)
Magnitude: 4
Depth: 15.0 km
Epicenter latitude / longitude: 16.14°N / 95.29°W

Antipode: 16.14°S / 84.71°E
Nearby towns and cities:
2 km (1 mi) WNW of Playa Brasil (Salina Cruz) (pop: 218) --> See nearby quakes!
11 km (7 mi) ENE of Mazatlan (pop: 2,630) --> See nearby quakes!
11 km (7 mi) WSW of Salina Cruz (pop: 76,600) --> See nearby quakes!
21 km (13 mi) SSW of Santo Domingo Tehuantepec (Tehuantepec) (pop: 42,100) --> See nearby quakes!
22 km (14 mi) SSW of San Blas Atempa (pop: 12,000) --> See nearby quakes!
37 km (23 mi) SSE of Santa Maria Jalapa del Marqués (pop: 9,000) --> See nearby quakes!
44 km (27 mi) SW of Juchitan de Zaragoza (pop: 74,800) --> See nearby quakes!
51 km (32 mi) SSW of Ixtepec (pop: 25,400) --> See nearby quakes!
184 km (114 mi) ESE of Oaxaca (pop: 255,000) --> See nearby quakes!
547 km (340 mi) SE of Mexico (Ciudad de México) (pop: 12,294,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds
25.9°C (79 F), humidity: 74%, wind: 5 m/s (10 kts) from N
Primary data source: SSN (Servicio Sismológico Nacional)
Broken 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 | 15 km | 11 Km Al SUROESTE De SALINA CRUZ, OAX, Mexico | SSN |
4.0 | 15 km | 11 Km WSW of Salina Cruz, 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
Click here to search our database for earlier earthquakes in the same area since 1900!