Strong mag. 5.5 earthquake - North Pacific Ocean, 42 km northwest of Tumaco, Narino, Colombia, on Monday, 31 December 1979 at 23:07 (GMT)
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Strong magnitude 5.5 earthquake at 33 km depth
Date & time: 31 Dec 1979 23:07:23 UTC
Magnitude: 5.5
Depth: 33.0 km
Epicenter latitude / longitude: 2.099°N / 79.017°W
(North Pacific Ocean, Colombia)Nearest volcano: Cumbal (181 km / 112 mi)
Nearby towns and cities:
33 km (20 mi) W of Francisco Pizarro (pop: 6,110) --> See nearby quakes!
42 km (26 mi) NW of Tumaco (pop: 86,700) --> See nearby quakes!
93 km (58 mi) NNW of San Lorenzo de Esmeraldas (San Lorenzo, Ecuador) (pop: 20,200) --> See nearby quakes!
109 km (68 mi) WSW of El Charco (pop: 28,700) --> See nearby quakes!
217 km (135 mi) WNW of Pasto (pop: 382,200) --> See nearby quakes!
265 km (165 mi) NNW of San Francisco de Quito (Ecuador) (pop: 1,399,800) --> See nearby quakes!
270 km (168 mi) W of Popayan (pop: 258,700) --> See nearby quakes!
315 km (195 mi) WSW of Santiago de Cali (pop: 2,392,900) --> See nearby quakes!
414 km (257 mi) NNW of Puyo (Pastaza, Ecuador) (pop: 24,900) --> See nearby quakes!
615 km (382 mi) WSW of Santafe de Bogota (pop: 7,674,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 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.
| Magnitude | Depth | Location | Source |
| M 5.5 | 33 km | south of Panama (Colombia) | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Aftershocks
More info
Recorded aftershocks, latest first (2 quakes):- 09 Feb 1980 11:14 UTC| M 4.5 |92 km (57.2 mi) depth|32 km (20 mi) distance| USGS | Details
- 28 Jan 1980 04:39 UTC| M 4.4 |33 km (20.5 mi) depth|28 km (18 mi) distance| USGS | Details
Earlier earthquakes in the same area
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