Very strong mag. 6.6 earthquake - South Pacific Ocean, 10.9 km west of Talcahuano, Provincia de Concepcion, Region del Biobio, Chile, on Wednesday, 18 October 1961 at 16:51 (GMT)
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Very strong magnitude 6.6 earthquake at 20 km depth
Date & time: 18 Oct 1961 16:51:57 UTC
Depth: 20.0 km
Epicenter latitude / longitude: 36.738°S / 73.238°W (South Pacific Ocean, Chile)
Nearest volcano: Nevados de Chillán (166 km / 103 mi)
Nearby towns and cities:
11 km (7 mi) W of Talcahuano (pop: 253,000) --> See nearby quakes!
19 km (12 mi) WNW of Concepcion (pop: 215,400) --> See nearby quakes!
22 km (13 mi) W of Penco (pop: 46,100) --> See nearby quakes!
28 km (17 mi) NW of Chiguayante (pop: 82,500) --> See nearby quakes!
29 km (18 mi) WSW of Tomé (pop: 46,700) --> See nearby quakes!
34 km (21 mi) NNW of Coronel (pop: 92,900) --> See nearby quakes!
40 km (25 mi) N of Lota (pop: 49,800) --> See nearby quakes!
57 km (35 mi) N of Arauco (pop: 24,700) --> See nearby quakes!
424 km (263 mi) SW of Puente Alto (pop: 510,400) --> See nearby quakes!
434 km (270 mi) SSW of Santiago de Chile (pop: 4,837,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 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.
|6.6||20 km||offshore Bio-Bio, Chile||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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More infoRecorded aftershocks, latest first (1 quakes):
- 27 Feb 1962 12:40 UTC| M 6.2 |25 km (15.5 mi) depth|112 km (69 mi) distance| USGS | Very strong mag. 6.2 earthquake - Arauco, 30 km west of Angol, Provincia de Malleco, Araucania, Chile, on Tuesday, 27 February 1962 at 12:40 (GMT)