Very strong mag. 6.6 earthquake - Canton Muisne, 59 km southwest of Esmeraldas, Ecuador, on Tuesday, November 22, 1983 at 14:21 GMT
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Very strong magnitude 6.6 earthquake at 55 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 54.9 km
Epicenter latitude / longitude: 0.482°N / 79.877°W (Canton Muisne, Esmeraldas, Ecuador)
Antipode: 0.482°S / 100.123°E
Nearest volcano: Guagua Pichincha (160 km / 99 mi)
Nearby towns and cities:
21 km (13 mi) SE of Muisne (Esmeraldas) (pop: 13,400) --> See nearby quakes!
48 km (30 mi) WNW of Rosa Zarate (Esmeraldas) (pop: 42,100) --> See nearby quakes!
50 km (31 mi) NNE of Pedernales (Manabí) (pop: 5,980) --> See nearby quakes!
59 km (36 mi) SSW of Esmeraldas (pop: 165,200) --> See nearby quakes!
113 km (70 mi) NW of Santo Domingo de los Colorados (Santo Domingo de los Tsáchilas) (pop: 200,400) --> See nearby quakes!
170 km (106 mi) WNW of Quito (Pichincha) (pop: 1,399,800) --> See nearby quakes!
174 km (108 mi) NNW of Quevedo (Los Ríos) (pop: 119,400) --> See nearby quakes!
183 km (113 mi) NNE of Portoviejo (Manabí) (pop: 170,300) --> See nearby quakes!
186 km (115 mi) NNE of Manta (Manabí) (pop: 183,200) --> See nearby quakes!
298 km (185 mi) N of Guayaquil (Guayas) (pop: 1,952,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 atomic bombs!) | 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.
|6.6||55 km||near the coast of Ecuador||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)
|Date and time||Mag|
|Dec 21, 1983 18:36|
38 years ago
|Canton Muisne, 68 km SW of Esmeraldas, Ecuador||More|