Strong mag. 6.1 earthquake - North Pacific Ocean, 90 km southeast of Salina Cruz, Oaxaca, Mexico, on Thursday, March 12, 1987 at 12:18 (GMT)
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Strong magnitude 6.1 earthquake at 40 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 40.0 km
Epicenter latitude / longitude: 15.61°N / 94.597°W↗ (North Pacific Ocean, Mexico)
Antipode: 15.61°S / 85.403°E↗
Nearest volcano: Apas-Navenchauc (229 km / 142 mi)
Nearby towns and cities:
69 km (43 mi) S of San Francisco del Mar Viejo (pop: 4,030) --> See nearby quakes!
84 km (52 mi) S of Las Amilpas (pop: 8,800) --> See nearby quakes!
89 km (55 mi) SSW of Chahuites (pop: 9,840) --> See nearby quakes!
90 km (56 mi) SE of Salina Cruz (pop: 76,600) --> See nearby quakes!
99 km (62 mi) SSE of Union Hidalgo (Unión Hidalgo) (pop: 13,700) --> See nearby quakes!
102 km (63 mi) SW of Arriaga (pop: 24,400) --> See nearby quakes!
102 km (64 mi) SSE of Juchitan de Zaragoza (pop: 74,800) --> See nearby quakes!
105 km (65 mi) WSW of Tonala (Tonalá) (pop: 35,300) --> See nearby quakes!
105 km (65 mi) SE of Santo Domingo Tehuantepec (Tehuantepec) (pop: 42,100) --> See nearby quakes!
641 km (398 mi) SE of Mexico City (pop: 12,294,200) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 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.
|6.1||40 km||offshore 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 (1 quake)
- 15 Mar 1987 05:11 UTC| M 5.9 |39.8 km (24.7 mi) depth|2 km (1 mi) distance| USGS | Details