Weak mag. 3.3 earthquake - South Pacific Ocean, 43 km southwest of San Antonio, Valparaiso, Chile, on Monday, 4 March 1985 at 21:30 (GMT)
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Weak magnitude 3.3 earthquake at 33 km depth
Date & time: 4 Mar 1985 21:30:45 UTC
Depth: 33.0 km
Epicenter latitude / longitude: 33.8°S / 72°W (South Pacific Ocean, Chile)
Nearest volcano: Palomo (181 km / 112 mi)
Nearby towns and cities:
43 km (27 mi) WSW of San Antonio (pop: 85,700) --> See nearby quakes!
45 km (28 mi) SW of Cartagena (San Antonio) (pop: 16,900) --> See nearby quakes!
74 km (46 mi) W of Melipilla (pop: 63,100) --> See nearby quakes!
92 km (57 mi) SSW of Valparaiso (pop: 282,400) --> See nearby quakes!
95 km (59 mi) W of El Monte (Provincia de Talagante) (pop: 23,100) --> See nearby quakes!
96 km (60 mi) SSW of Viña del Mar (pop: 294,600) --> See nearby quakes!
98 km (61 mi) SSW of Quilpue (pop: 130,300) --> See nearby quakes!
123 km (76 mi) WNW of Rancagua (pop: 212,700) --> See nearby quakes!
131 km (81 mi) WSW of Santiago de Chile (pop: 4,837,300) --> See nearby quakes!
133 km (83 mi) W of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5.6 x 109 joules (1.56 megawatt hours, equivalent to 1.34 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.
|3.3||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.