Very strong mag. 6.0 earthquake - Tena, Provincia de Napo, 58 km east of Ambato, Provincia del Tungurahua, Ecuador, on Tuesday, 22 September 1987 at 16:21 (GMT)
Quake Data | Interactive map | User Reports | Aftershocks | Earlier quakes in same area | Quakes in Ecuador | Provincia de Napo | Provincia del Tungurahua | Provincia de Cotopaxi | Provincia de Pichincha | Provincia del Chimborazo | Provincia del Guayas
Very strong magnitude 6.0 earthquake at 10 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 10.0 km
Epicenter latitude / longitude: 1.082°S / 78.127°W (Tena, Provincia de Napo, Ecuador)
Nearest volcano: Chalupas (36 km / 22 mi)
Nearby towns and cities:
36 km (23 mi) WSW of Tena (Napo) (pop: 17,200) --> See nearby quakes!
48 km (30 mi) ENE of Pillaro (Cantón Píllaro, Tungurahua) (pop: 7,460) --> See nearby quakes!
48 km (30 mi) NE of Banos (Cantón Baños, Tungurahua) (pop: 9,500) --> See nearby quakes!
52 km (32 mi) E of Salcedo (Cotopaxi) (pop: 10,800) --> See nearby quakes!
54 km (33 mi) ENE of Pelileo (Tungurahua) (pop: 16,600) --> See nearby quakes!
65 km (40 mi) ESE of Pujili (Cotopaxi) (pop: 16,200) --> See nearby quakes!
80 km (50 mi) SE of Machachi (Mejia, Pichincha) (pop: 25,700) --> See nearby quakes!
87 km (54 mi) NE of Riobamba (Chimborazo) (pop: 124,500) --> See nearby quakes!
105 km (65 mi) SSE of San Francisco de Quito (Pichincha) (pop: 1,399,800) --> See nearby quakes!
232 km (144 mi) ENE of Guayaquil (Guayas) (pop: 1,952,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 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.
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
More infoRecorded aftershocks, latest first (3 quakes):
- 18 Dec 1987 05:01 UTC| M 5.5 |177.3 km (110.2 mi) depth|51 km (32 mi) distance| USGS | Details
- 23 Oct 1987 15:49 UTC| M 4.4 |33 km (20.5 mi) depth|18 km (11 mi) distance| USGS | Details
- 26 Sep 1987 14:58 UTC| M 3.9 |57.6 km (35.8 mi) depth|22 km (13 mi) distance| USGS | Details