Strong mag. 6.2 earthquake - North Pacific Ocean, 63 km southwest of Managua, Nicaragua, on Thursday, August 23, 1984 at 19:49 (GMT)
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Strong magnitude 6.2 earthquake at 57 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Magnitude: 6.2
Depth: 57.3 km
Epicenter latitude / longitude: 11.618°N / 86.485°W
(North Pacific Ocean, Nicaragua)Antipode: 11.618°S / 93.515°E
Nearest volcano: Masaya (54 km / 34 mi)
Nearby towns and cities:
19 km (12 mi) S of Masachapa (pop: 5,000) --> See nearby quakes!
26 km (16 mi) S of San Rafael del Sur (pop: 29,800) --> See nearby quakes!
38 km (23 mi) SW of Diriamba (pop: 35,000) --> See nearby quakes!
45 km (28 mi) SW of San Marcos (pop: 23,300) --> See nearby quakes!
46 km (28 mi) SSW of El Crucero (pop: 16,500) --> See nearby quakes!
50 km (31 mi) WSW of Nandaime (pop: 20,800) --> See nearby quakes!
50 km (31 mi) SW of Masatepe (pop: 21,500) --> See nearby quakes!
62 km (39 mi) SSW of Ciudad Sandino (pop: 50,000) --> See nearby quakes!
63 km (39 mi) SSW of Managua (pop: 973,100) --> See nearby quakes!
101 km (63 mi) SSE of Leon (pop: 144,500) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 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.
| Mag. | Depth | Location | Source |
| 6.2 | 57 km | near the coast of Nicaragua | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks
[More info]
Recorded aftershocks, latest first (11 quakes)
Date and time | Mag Depth | Location | Details |
| Dec 20, 1984 16:26 37 years ago | 6.0 63 km | North Pacific Ocean, 81 km S of Managua, Nicaragua | More |
| Oct 15, 1984 04:31 37 years ago | 4.4 99 km | North Pacific Ocean, 39 km W of San Rafael del Sur, Nicaragua | More |
| Sep 13, 1984 10:25 37 years ago | 4.6 51 km | North Pacific Ocean, 77 km SW of San Rafael del Sur, Nicaragua | More |
| Sep 13, 1984 08:07 37 years ago | 4.5 50 km | North Pacific Ocean, 55 km SW of San Rafael del Sur, Nicaragua | More |
| Sep 13, 1984 07:57 37 years ago | 4.8 48 km | North Pacific Ocean, 92 km SW of Managua, Nicaragua | More |
| Sep 13, 1984 07:36 37 years ago | 5.0 54 km | North Pacific Ocean, 62 km SW of San Rafael del Sur, Nicaragua | More |
| Sep 4, 1984 18:44 37 years ago | 4.6 77 km | North Pacific Ocean, 65 km SW of San Rafael del Sur, Nicaragua | More |
| Sep 4, 1984 11:04 37 years ago | 4.4 33 km | North Pacific Ocean, 43 km SW of San Rafael del Sur, Nicaragua | More |
| Sep 4, 1984 10:41 37 years ago | 4.5 33 km | North Pacific Ocean, 59 km SW of Managua, Nicaragua | More |
| Sep 1, 1984 09:07 37 years ago | 4.0 33 km | North Pacific Ocean, 34 km W of Nicaragua, Departamento de Rivas, Nicaragua | More |
| Aug 27, 1984 18:45 37 years ago | 4.9 90 km | North Pacific Ocean, 88 km W of Managua, Nicaragua | More |
Earlier earthquakes in the same area
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