Strong mag. 6.3 earthquake - Santa Maria Chimalapa, 76 km northeast of Juchitan de Zaragoza, Oaxaca, Mexico, on Friday, June 22, 1979 at 06:30 (GMT)
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Strong magnitude 6.3 earthquake at 107 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 107.0 km
Epicenter latitude / longitude: 17°N / 94.609°W↗ (Santa Maria Chimalapa, Oaxaca, Mexico)
Antipode: 17°S / 85.391°E↗
Nearest volcano: San Martin Pajapan (145 km / 90 mi)
Nearby towns and cities:
13 km (8 mi) NE of Santa Maria Chimalapa (pop: 2,540) --> See nearby quakes!
31 km (20 mi) ESE of Cuauhtémoc (pop: 2,260) --> See nearby quakes!
48 km (30 mi) ENE of Matias Romero Avendaño (Matías Romero Avendaño) (pop: 18,900) --> See nearby quakes!
63 km (39 mi) NNE of Union Hidalgo (Unión Hidalgo) (pop: 13,700) --> See nearby quakes!
72 km (45 mi) NE of Ixtepec (pop: 25,400) --> See nearby quakes!
76 km (48 mi) NE of Juchitan de Zaragoza (pop: 74,800) --> See nearby quakes!
111 km (69 mi) NE of Salina Cruz (pop: 76,600) --> See nearby quakes!
161 km (100 mi) W of Tuxtla Gutierres (Chiapas) (pop: 537,100) --> See nearby quakes!
225 km (140 mi) E of Oaxaca (pop: 255,000) --> See nearby quakes!
548 km (341 mi) ESE of Mexico City (pop: 12,294,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 atomic bombs!) More info
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.
|6.3||107 km||Oaxaca, Mexico||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Recorded aftershocks, latest first (2 quakes)
- 04 Aug 1979 00:40 UTC| M 4.3 |113 km (70.2 mi) depth|72 km (45 mi) distance| USGS | Details
- 29 Jun 1979 04:43 UTC| M 4.5 |115 km (71.5 mi) depth|45 km (28 mi) distance| USGS | Details