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Light mag. 4.4 earthquake - 34 Km Al SO De Santiago, Chile on Tuesday, 29 September 2020

Light mag. 4.4 earthquake  - 34 Km Al SO De Santiago, Chile on Tuesday, 29 September 2020
29 Sep 14:45 UTC: First to report: EMSC after 21 minutes.
29 Sep 14:46: Now using data updates from GUG (U. Chile)
29 Sep 16:34: Hypocenter depth recalculated from 90.9 to 91.5 km (from 56 to 57 mi).
Date & time: Tuesday, 29 September 2020 14:24 UTC
Magnitude: 4.4
Depth: 91.5 km
Epicenter latitude / longitude: 33.705°S / 70.824°W (Chile)
Nearest volcano: San José (86 km / 53 mi)
Nearby towns and cities:
8 km (5 mi) NW of Buin (pop: 55,400)
11 km (7 mi) SE of Talagante (pop: 51,800)
12 km (7 mi) SE of Peñaflor (pop: 65,500)
25 km (16 mi) SW of Puente Alto (pop: 510,400)
32 km (20 mi) SW of Santiago (pop: 4,837,300)
101 km (63 mi) SE of Viña del Mar (pop: 294,600)
Weather at epicenter at time of quake:
Overcast Clouds 9.5°C (49 F), humidity: 76%, wind: 2 m/s (3 kts) from SSW
Primary data source: GUG (U. Chile)
Estimated released energy: 2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) [learn more]
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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.
TimeMag. / DepthLocationSource
Tue, 29 Sep 14:24 UTCM 4.4 / 91.5 km34 Km Al SO De Santiago, ChileGUG (U. Chile)
Tue, 29 Sep 14:24 UTCM 4.4 / 91 kmRegion Metropolitana, ChileEMSC
Tue, 29 Sep 14:24 UTCM 4.5 / 85.3 km8 Km WNW of Buin, ChileUSGS

User reports for this quake (31)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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35.8 km ENE of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
100.4 km NW of epicenter [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 s : Muy leve el movimiento (reported through our app)
25.5 km NE of epicenter [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s (reported through our app)
37 km NNW of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
39.7 km NNE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
San Felipe (Chile, 106 km N of epicenter) : Leve en un segundo piso (reported through EMSC)
Viña del Mar (Chile, 101 km NW of epicenter) : Leve en cerro de Viña Del Mar, como de 3 grados poco ruido y balanceado. (reported through EMSC)
Peñaflor (Chile, 12 km NW of epicenter) : Movimiento horizontal y mucho ruido. (reported through EMSC)
Viña del Mar (Chile, 101 km NW of epicenter) : Muy leve en Viña del Mar (reported through EMSC)
Rancagua (Chile, 53 km S of epicenter) : Se sintió suave en Rancagua (reported through EMSC)
Rancagua (Chile, 53 km S of epicenter) : En Rancagua, Fue suave y duro como 2 segundo (reported through EMSC)
Chicureo Abajo (Chile, 49 km N of epicenter) : Solo se sentió en el 2o piso (reported through EMSC)
Providencia (Chile, 36 km NE of epicenter) : Suabe,, corta duracio (reported through EMSC)
Providencia (Chile, 36 km NE of epicenter) : Ruido fuerte, pero sin movimiento (en 1er piso ninguna lampara se movio) (reported through EMSC)
Providencia (Chile, 36 km NE of epicenter) : Se sintió de mediana intensidad. Vivo en un piso 19 y el movimiento lo percibí como "de arriba hacia abajo" (reported through EMSC)
Providencia (Chile, 36 km NE of epicenter) : Corto pero suave (reported through EMSC)
Providencia (Chile, 36 km NE of epicenter) : Se sintió brevemente, ruidoso. 13vo piso las condes (reported through EMSC)
Villa Presidente Frei, Ñuñoa, Santiago, Chile (Chile, 35 km NE of epicenter) : Did not feel anything just dog started barking (reported through EMSC)
Villa Presidente Frei, Ñuñoa, Santiago, Chile (Chile, 35 km NE of epicenter) : Sentido con vibracion, 20 seg aprox, direcion W-E (reported through EMSC)
Villa Presidente Frei, Ñuñoa, Santiago, Chile (Chile, 35 km NE of epicenter) : Corto, pero ruidoso. (reported through EMSC)
Villa Presidente Frei, Ñuñoa, Santiago, Chile (Chile, 35 km NE of epicenter) : Leve (reported through EMSC)
Santiago (Chile, 31 km NE of epicenter) : Fuerte al inicio, bajando la intensidad de a poco, sin sonido precedente (reported through EMSC)
Santiago (Chile, 31 km NE of epicenter) : Muy suave, se confundió con el ruido de la calle y autos. (reported through EMSC)
Santiago (Chile, 31 km NE of epicenter) : Bastante ruido pero poco movimiento. (reported through EMSC)
Santiago (Chile, 31 km NE of epicenter) : Suave se sintió en piso 13, sin ruido (reported through EMSC)
Puente Alto (Chile, 25 km NE of epicenter) : Suave, aunque con una vibración sutil unís 15 segundos antes del movimiento “brusco” (reported through EMSC)
Puente Alto (Chile, 25 km NE of epicenter) : Ruidoso, se sintio con movimiento horizontal (reported through EMSC)
Puente Alto (Chile, 25 km NE of epicenter) : Nada de ruido o movimiento. (reported through EMSC)
San Bernardo (Chile, 16 km NE of epicenter) : 4,1 según servicio sismológico, 33 km SO de Santiago (reported through EMSC)
San Bernardo (Chile, 16 km NE of epicenter) : No sentí nada (reported through EMSC)
Paine (Chile, 14 km SE of epicenter) : Muy perceptible pero no fuerte (reported through EMSC)

Earlier earthquakes in the same area since 1900

Light mag. 4.4 earthquake - 34 Km Al SO De Santiago, Chile on Tuesday, 29 September 2020

Map of earlier quakes

 

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