Moderate mag. 4.5 earthquake - South Pacific Ocean, 48 km west of Valparaiso, Region de Valparaiso, Chile, on Monday, 24 April 2017 at 03:50 (GMT)
This quake was likely a foreshock of the 6.6 quake South Pacific Ocean, 11 km west of Valparaiso, Region de Valparaiso, Chile, 24 April 2017 21:38 GMT, which followed after 18 hours.
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in Chile | Valparaiso | Santiago Metropolitan

Moderate magnitude 4.5 earthquake at 32 km depth
24 Apr 04:02 UTC: First to report: GUG (U. Chile) after 11 minutes.
Apr 24 04:12: Magnitude recalculated from 4.4 to 4.5.
Hypocenter depth recalculated from 18.4 to 18.5 km.
Hypocenter depth recalculated from 18.5 to 31.9 km.
Apr 24 04:12: Magnitude recalculated from 4.4 to 4.5.
Hypocenter depth recalculated from 18.4 to 18.5 km.
Hypocenter depth recalculated from 18.5 to 31.9 km.
Magnitude: 4.5
Depth: 31.9 km
Epicenter latitude / longitude: 33.089°S / 72.142°W

Nearest volcano: Tupungatito (218 km / 135 mi)
Nearby towns and cities:
48 km (30 mi) W of Valparaiso (pop: 282,400) --> See nearby quakes!
55 km (34 mi) W of Viña del Mar (pop: 294,600) --> See nearby quakes!
65 km (41 mi) W of Quilpué (pop: 130,300) --> See nearby quakes!
72 km (45 mi) NW of Cartagena (San Antonio) (pop: 16,900) --> See nearby quakes!
72 km (45 mi) W of Villa Alemana (pop: 97,300) --> See nearby quakes!
82 km (51 mi) W of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
86 km (54 mi) WSW of Quillota (pop: 67,800) --> See nearby quakes!
93 km (58 mi) WSW of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
145 km (90 mi) WNW of Santiago de Chile (pop: 4,837,300) --> See nearby quakes!
157 km (97 mi) WNW of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: GUG (U. Chile)
Estimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 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.
Magnitude | Depth | Location | Source |
M 4.5 | 32 km | 49 km al O de Valparaíso | GUG (U. Chile) |
M 4.3 | 15 km | OFFSHORE VALPARAISO, CHILE | EMSC |
M 4.3 | 19 km | - 47km W of Valparaiso, Chile | USGS |
User reports for this quake (4)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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San Antonio (74.3 km SE of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Providencia (Chile, 149 km E of epicenter) : Woke up with my bed rocking back and forth. 9th floor - providencia (reported through EMSC)
Quilpué (Chile, 67 km E of epicenter) : Muchos temblores desde ayer! (reported through EMSC)
Valparaíso (Chile, 48 km E of epicenter) : Muy fuerte. (reported through EMSC)
Earlier earthquakes in the same area
Moderate mag. 4.5 earthquake - South Pacific Ocean, 48 km west of Valparaiso, Region de Valparaiso, Chile, on Monday, 24 April 2017 at 03:50 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!