Strong mag. 6.7 earthquake - Canton Pastaza, Provincia del Pastaza, 43 km southeast of Puyo, Pastaza, Ecuador, on Monday, 17 May 1971 at 11:04 (GMT)
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Strong magnitude 6.7 earthquake at 172 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 171.6 km
Epicenter latitude / longitude: 1.671°S / 77.66°W (Canton Pastaza, Provincia del Pastaza, Ecuador)
Nearest volcano: Puyo (37 km / 23 mi)
Nearby towns and cities:
34 km (21 mi) E of Palora (Morona-Santiago) (pop: 6,470) --> See nearby quakes!
43 km (27 mi) ESE of Puyo (Pastaza) (pop: 24,900) --> See nearby quakes!
86 km (54 mi) S of Archidona (Napo) (pop: 7,310) --> See nearby quakes!
87 km (54 mi) NE of Macas (Morona, Morona-Santiago) (pop: 23,700) --> See nearby quakes!
90 km (56 mi) ESE of Banos (Cantón Baños, Tungurahua) (pop: 9,500) --> See nearby quakes!
110 km (68 mi) E of Riobamba (Chimborazo) (pop: 124,500) --> See nearby quakes!
116 km (72 mi) ESE of Ambato (Tungurahua) (pop: 154,400) --> See nearby quakes!
134 km (83 mi) SE of Latacunga (Cotopaxi) (pop: 51,700) --> See nearby quakes!
187 km (116 mi) SSE of San Francisco de Quito (Pichincha) (pop: 1,399,800) --> See nearby quakes!
254 km (158 mi) ENE of Guayaquil (Guayas) (pop: 1,952,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 1014 joules (197 gigawatt hours, equivalent to 1.7 x 105 tons of TNT or 10.6 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 (1 quakes):
- 27 Jul 1971 02:02 UTC| M 7.4 |120 km (74.6 mi) depth|135 km (84 mi) distance| USGS | Major magnitude 7.4 earthquake - Taisha, 106 km southeast of Macas, Ecuador, on Tuesday, 27 July 1971 at 02:02 (GMT)