Strong mag. 5.5 earthquake - Provincia de Contralmirante Villar, 45 km southwest of Tumbes, Peru, on Monday, September 4, 1972 at 23:32 GMT
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Strong magnitude 5.5 earthquake at 30 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
|Date & time||Sep 4, 1972 23:32:21 UTC|
|Local time at epicenter|
|Epicenter latitude / longitude||3.847°S / 80.741°W (Provincia de Contralmirante Villar, Tumbes, Peru)|
|Antipode||3.847°N / 99.259°E|
|Shaking intensity||Moderate shaking near epicenter|
|Primary data source||USGS (United States Geological Survey)|
|Nearby towns and cities||9 km (6 mi) SW of Pedregal (pop: 84) | Show on map | Quakes nearby|
20 km (12 mi) SSW of Zorritos (pop: 12,300) | Show on map | Quakes nearby
26 km (16 mi) N of Papayal (Contralmirante Villar) (pop: 5,480) | Show on map | Quakes nearby
45 km (28 mi) SW of Tumbes (pop: 109,200) | Show on map | Quakes nearby
48 km (30 mi) NNE of La Brea (Piura) (pop: 17,700) | Show on map | Quakes nearby
65 km (40 mi) SW of Zarumilla (pop: 16,900) | Show on map | Quakes nearby
70 km (44 mi) SW of Huaquillas (El Oro, Ecuador) (pop: 39,800) | Show on map | Quakes nearby
97 km (61 mi) WSW of Santa Rosa (El Oro, Ecuador) (pop: 41,800) | Show on map | Quakes nearby
150 km (93 mi) N of Piura (pop: 325,500) | Show on map | Quakes nearby
999 km (621 mi) NNW of Lima (Lima Province) (pop: 7,737,000) | Show on map | Quakes nearby
|Estimated seismic energy released||1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 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.
|5.5||30 km||Peru-Ecuador border region||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 (0 quake)
So far, no aftershocks have been registered.