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Moderate mag. 4.5 earthquake - 34 km south of Quito, Pichincha, Ecuador, on 2020-10-27 06:59:20

Moderate mag. 4.5 earthquake - 34 km south of Quito, Pichincha, Ecuador, on 2020-10-27 06:59:20 Moderate mag. 4.5 earthquake - 34 km south of Quito, Pichincha, Ecuador, on 2020-10-27 06:59:20

Moderate magnitude 4.5 earthquake at 3 km depth

27 Oct 12:04 UTC: First to report: IGEPN after 5 minutes.
27 Oct 12:06: Magnitude recalculated from 5.0 to 4.9.
... [show all] ...
27 Oct 12:14: Magnitude recalculated from 4.9 to 4.5.

Earthquake details

Date & timeOct 27, 2020 11:59:20 UTC
Local time at epicenter2020-10-27 06:59:20
StatusConfirmed
Magnitude4.5
Depth3.0 km
Epicenter latitude / longitude0.53°S / 78.49°W (Canton Mejia, Provincia de Pichincha, Ecuador)
Antipode0.53°N / 101.51°E
Shaking intensityLight shaking
Felt49 reports
Primary data sourceIGEPN (Institute of Geophysics of the National Polytechnic School in Quito)
Nearest volcanoCotopaxi (17 km / 11 mi)
Nearby towns and cities9 km (6 mi) ESE of Machachi (Mejia, Pichincha) (pop: 25,700) | Show on map | Quakes nearby
22 km (14 mi) S of Sangolqui (Rumiðahui, Pichincha) (pop: 5,110) | Show on map | Quakes nearby
34 km (21 mi) S of Quito (Pichincha) (pop: 1,399,800) | Show on map | Quakes nearby
53 km (33 mi) NNE of Pujili (Cotopaxi) (pop: 16,200) | Show on map | Quakes nearby
74 km (46 mi) SSW of Cayambe (Pichincha) (pop: 26,600) | Show on map | Quakes nearby
81 km (50 mi) N of Ambato (Provincia de Tungurahua) (pop: 154,400) | Show on map | Quakes nearby
82 km (51 mi) ESE of Santo Domingo de los Colorados (Santo Domingo de los Tsáchilas) (pop: 200,400) | Show on map | Quakes nearby
89 km (55 mi) SSW of Otavalo (Imbabura) (pop: 32,300) | Show on map | Quakes nearby
89 km (55 mi) N of Pelileo (Provincia de Tungurahua) (pop: 16,600) | Show on map | Quakes nearby
242 km (150 mi) NE of Guayaquil (Guayas) (pop: 1,952,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 9°C (48 F), humidity: 93%, wind: 3 m/s (6 kts) from SE
Estimated seismic energy released3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | about seismic energy
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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.
Mag.DepthLocationSource
4.53 kmEcuador - Pichincha, A 9.72km De MachachiIGEPN
4.510 km30 Km SE of Quito, EcuadorGFZ
4.710 km33 Km S of Quito, EcuadorEMSC
4.710.6 km20 Km WNW of Machachi, EcuadorUSGS

Seismograms

Seismic station: Otavalo, Ecuador (OTAV/IU network) | Distance from quake: 85 km / 53 mi | Show on map | Station Info
Seismic station Otavalo, Ecuador: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (58)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Quito / Moderate shaking (MMI V) / horizontal (sideways) swinging : The pronounced horizontal shaking woke me up and seemed to go on for a long time. The walls creaked and the window shades swayed. The facade of the building across the street shook.  
San Francisco de Quito, Pichincha (39.9 km N of epicenter) [Map] / Moderate shaking (MMI V) / 20-30 s
near San Francisco de Quito, Pichincha (43 km N of epicenter) [Map] / Light shaking (MMI IV) / vertical swinging (up and down) / 5-10 s (reported through our app)
Hostel secret garden (3.6 km NE of epicenter) [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging / 5-10 s
Tumbaco (33.9 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / 10-15 s (reported through our app)
27 km of San Francisco de Quito, Pichincha (59.2 km N of epicenter) [Map] / Weak shaking (MMI III) : If we were not already awake I would not have felt it. It was a very slow shake, not a vibration.  
Santa Rosa (363.4 km SSW of epicenter) [Map] / not felt : I was awake at that hour but felt nothing.  
Calderón (47.2 km N of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Conocoto (27 km N of epicenter) [Map] / Light shaking (MMI IV)
Conocoto (26.1 km N of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s (reported through our app)
San Francisco de Quito, Pichincha (33.4 km N of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging
San Francisco de Quito, Pichincha (40 km N of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s
San Francisco de Quito, Pichincha (41 km N of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s (reported through our app)
near Sangolqui, Canton Rumiñahui, Provincia de Pichincha (16 km NNW of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
San Francisco de Quito, Pichincha (39.9 km N of epicenter) [Map] / Moderate shaking (MMI V) / 20-30 s
San Francisco de Quito, Pichincha (41 km N of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Guayaquil (247.2 km SW of epicenter) [Map] / not felt (reported through our app)
San Francisco de Quito, Pichincha (37.5 km N of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
San Francisco de Quito, Pichincha (27.5 km NNW of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
near San Francisco de Quito, Pichincha (36.4 km NNE of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s (reported through our app)
Quitumbe (27.2 km NNW of epicenter) [Map] / Moderate shaking (MMI V)
San Francisco de Quito, Pichincha (36.4 km N of epicenter) [Map] / Moderate shaking (MMI V) / 15-20 s (reported through our app)
near San Francisco de Quito, Pichincha (42 km N of epicenter) [Map] / Light shaking (MMI IV)
QUITO (39.6 km N of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 5-10 s (reported through our app)
Quito (41.5 km N of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Quito (46.5 km N of epicenter) [Map] / Moderate shaking (MMI V) / complex rolling (tilting in multiple directions) / 15-20 s (reported through our app)
Sangolqui (20.8 km N of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 20-30 s : Ligth shake I live a round sangolqui city  
Quito / Light shaking (MMI IV) / 10-15 s
Lumbisi / Light shaking (MMI IV)
San Antonio mitad del mundo / Very weak shaking (MMI II)
Quito / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : It woke me up  
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