Moderate mag. 5.2 earthquake - South Pacific Ocean, 26 km northwest of San Antonio, Valparaiso, Chile, on Wednesday, 20 March 1985 at 02:46 (GMT)
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Moderate magnitude 5.2 earthquake at 33 km depth
Date & time: 20 Mar 1985 02:46:24 UTC
Depth: 33.0 km
Epicenter latitude / longitude: 33.416°S / 71.794°W (South Pacific Ocean, Chile)
Nearest volcano: San José (180 km / 112 mi)
Nearby towns and cities:
23 km (14 mi) NW of Cartagena (San Antonio) (pop: 16,900) --> See nearby quakes!
26 km (16 mi) NW of San Antonio (pop: 85,700) --> See nearby quakes!
45 km (28 mi) SSW of Valparaiso (pop: 282,400) --> See nearby quakes!
49 km (30 mi) SSW of Viña del Mar (pop: 294,600) --> See nearby quakes!
52 km (33 mi) SW of Quilpue (pop: 130,300) --> See nearby quakes!
57 km (35 mi) SW of Villa Alemana (pop: 97,300) --> See nearby quakes!
62 km (38 mi) WNW of Melipilla (pop: 63,100) --> See nearby quakes!
78 km (48 mi) SW of Quillota (pop: 67,800) --> See nearby quakes!
106 km (66 mi) W of Santiago de Chile (pop: 4,837,300) --> See nearby quakes!
115 km (71 mi) W of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) 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.
|5.2||33 km||offshore Valparaiso, 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 (2 quakes):
- 15 Apr 1985 04:41 UTC| M 5.6 |33 km (20.5 mi) depth|18 km (11 mi) distance| USGS | Details
- 11 Apr 1985 11:14 UTC| M 3.0 |33 km (20.5 mi) depth|16 km (10 mi) distance| USGS | Details