Séisme modéré mag. 5.3 - South Pacific Ocean, 88 km au sud-ouest de San Antonio, Valparaiso, Chili, 21 Apr 8:17 pm (GMT -4) -

Séisme modéré mag. 5.3 - South Pacific Ocean, 88 km au sud-ouest de San Antonio, Valparaiso, Chili, 21 Apr 8:17 pm (GMT -4)

Séisme modéré magnitude 5.3 at 34 km depth

22 Apr 00:21 UTC: Premier à signaler: GFZ après 4 minutes.
22 Apr 00:23: Magnitude recalculée de 5.6 à 5.5. Emplacement de l'épicentre corrigé de 11 km (6.9 mi) au E.
22 Apr 00:34: Maintenant en utilisant une nouvelle source de données: GUG (U. Chile)
22 Apr 16:54: Profondeur recalculée de 33.1 à 33.7 km (de 21 à 21 mi). Emplacement de l'épicentre corrigé de 1.9 km (1.2 mi) au O.
Update Thu, 22 Apr 2021, 00:27
Significant magnitude 5.5 quake hits 77 km southwest of San Antonio, Chile in the evening
5.5 quake 21 Apr 8:17 pm (GMT -4)
5.5 quake 21 Apr 8:17 pm (GMT -4)
A shallow magnitude 5.5 earthquake was reported in the evening near San Antonio, San Antonio Province, Region de Valparaiso, Chile.
According to the German Research Centre for Geosciences (GFZ), the quake hit on Wednesday 21 April 2021 at 8:17 pm local time at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 5.7 earthquake.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Los Navegantes (pop. 230) located 56 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in San Antonio (pop. 85,700) located 77 km from the epicenter, Cartagena (pop. 16,900) 80 km away, Melipilla (pop. 63,100) 106 km away, Valparaiso (pop. 282,400) 121 km away, Viña del Mar (pop. 294,600) 126 km away, and Quilpue (pop. 130,300) 130 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
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Earthquake data

Date & heure: 22 Apr 2021 00:17:15 UTC -
Heure locale à l'épicentre: 21 Apr 8:17 pm (GMT -4)
Magnitude: 5.3
Profondeur: 33.7 km
Épicentre latitude / longitude: 33.99°S / 72.43°W (South Pacific Ocean, Chili)
Antipode: 33.99°N / 107.57°E
Volcan le plus près: Palomo (210 km / 130 mi)
Villes et villages en proximité:
60 km NO de Los Navegantes (Provincia de Cardenal Caro) (pop: 231) --> Voir les séismes à proximité!
88 km OSO de San Antonio (pop: 85,700) --> Voir les séismes à proximité!
90 km OSO de Carthagène (San Antonio) (pop: 16,900) --> Voir les séismes à proximité!
117 km OSO de Melipilla (pop: 63,100) --> Voir les séismes à proximité!
129 km SO de Valparaiso (pop: 282,400) --> Voir les séismes à proximité!
135 km SO de Viña del Mar (pop: 294,600) --> Voir les séismes à proximité!
139 km SO de Quilpué (pop: 130,300) --> Voir les séismes à proximité!
144 km SO de Villa Alemana (pop: 97,300) --> Voir les séismes à proximité!
175 km OSO de Santiago du Chili (pop: 4,837,300) --> Voir les séismes à proximité!
176 km OSO de Puente Alto (pop: 510,400) --> Voir les séismes à proximité!
Météo à'épicentre au moment du séisme:
Broken Clouds 15.1°C (59 F), humidity: 90%, wind: 5 m/s (10 kts) from SSW
Source de données principale: GUG (U. Chile)
Énergie sismique libérée estimée : 5.6 x 1012 joules (1.56 GWh, équivalent à 1344 tonnes de TNT) Plus d'infos
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Si vous avez ressenti ce tremblement de terre (ou si vous étiez près de l'épiccentre), merci de partager votre expérience et envoyer un témoignage "Je l'ai ressenti !" D'autres utilisateurs aimeraient le lire !
Si vous n'avez pas ressenti le séisme même si vous étiez dans la zone, signalez-le aussi, s-v-p! Votre contribution est précieuse pour la science des tremblements de terre, l'analyse des risques sismiques et les efforts d'atténuation. Vous pouvez utiliser l'emplacement de votre appareil ou la carte pour indiquer l'endroit où vous étiez pendant le séisme. Merci!

Données pour le même séisme indiquées par différentes agences

Info : Plus les agences signalent le même séisme et publient des données similaires, plus vous pouvez avoir confiance dans les données. Il faut normalement jusqu'à quelques heures pour que les paramètres sismiques soient calculés avec une précision quasi optimale.
Mag.ProfondeurLieuSource
5.334 km55 Km Al O De Navidad, ChileGUG (U. Chile)
5.510 kmOFFSHORE O'HIGGINS, CHILEEMSC
5.513 kmOCEANO PACIFICO (Argentina), ChileINPRES
5.510 kmNear Viña Del Mar, ChileRENASS
5.310 kmOff Coast of Central ChileGFZ
5.57.5 km80 Km WSW of San Antonio, ChileUSGS
5.414 kmOff Coast of Central ChileGeoAu
5.810 kmNear Coast of Central ChileUSP

Témoignages pour ce séisme (20)

Les rapports des utilisateurs estiment l'intensité perçue des secousses du sol en fonction de l' Échelle MMI (Modified Mercalli Intensity Scale).
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Papudo, Chile (187.5 km NNE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging : Tembló 5,6 | 16 users found this interesting.  
Huechuraba, Santiago (176.2 km ENE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 30-60 s : Igual a los otro sismos que han habido en Navidad, muy prolongados con movimiento oscilatorio de Sur a Norte y sin ruido | 5 users found this interesting. (reported through our app)  
Santiago de Chile , Puente Alto (175.2 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s : Crujido de la techumbre | One user found this interesting. (reported through our app)  
Rosario, Santa Fe (1098.7 km E of epicenter) [Map] / not felt (reported through our app)
San Antonio, Valparaíso (87.6 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 20-30 s
Los andes (215.7 km NE of epicenter) [Map] / Very weak shaking (MMI II) / both vertical and horizontal swinging / 2-5 s
Viña del Mar, Provincia de Valparaíso, Valparaíso (131.9 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short : One push (reported through our app)  
Santiago (172.5 km ENE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 10-15 s
Los andes (215.7 km NE of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / 2-5 s : Eu senti o tremor (reported through our app)  
Viña del mar / Very weak shaking (MMI II) / rattling, vibrating / 15-20 s
Peumo (120.1 km ESE of epicenter) [Map] / Light shaking (MMI IV) / 10-15 s (reported through our app)
Santiago / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
San antonio / Weak shaking (MMI III) / single lateral shake / 2-5 s : Se movio un poco  
Santiago, Cerro navia (166.6 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / simple rolling (tilting sideways along one direction) / 2-5 s
Concepción / Light shaking (MMI IV) / 30-60 s
Quilpué / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s
Viña del Mar (134.5 km NE of epicenter) [Map] / Weak shaking (MMI III) / very short (reported through our app)
Santiago (164.8 km ENE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s (reported through our app)
Concepción (316.8 km S of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s (reported through our app)
La Florida, Santiago, (180.1 km ENE of epicenter) [Map] / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / 10-15 s
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Répliques

Plus d'infos

Répliques enregistrées, les plus récentes en premier (60 séismes)

  • 18 Jun 2021 18:33 UTC
    | M 4.0 |
    32.9 km (20.4 mi) depth
    |
    8 km (5 mi) distance
    | GUG (U. Chile) | Details
  • 12 Jun 2021 03:36 UTC
    | M 4.9 |
    13.8 km (8.6 mi) depth
    |
    25 km (16 mi) distance
    | GUG (U. Chile) | Details
  • 04 Jun 2021 09:18 UTC
    | M 2.7 |
    22.4 km (13.9 mi) depth
    |
    15 km (9 mi) distance
    | GUG (U. Chile) | Details
  • 04 Jun 2021 09:13 UTC
    | M 2.5 |
    11.7 km (7.3 mi) depth
    |
    15 km (9 mi) distance
    | GUG (U. Chile) | Details
  • 04 Jun 2021 07:20 UTC
    | M 2.8 |
    33.6 km (20.9 mi) depth
    |
    11 km (7 mi) distance
    | GUG (U. Chile) | Details
  • 13 May 2021 14:02 UTC
    | M 2.9 |
    38 km (23.6 mi) depth
    |
    3 km (2 mi) distance
    | EMSC | Details
  • 10 May 2021 20:17 UTC
    | M 3.3 |
    1.6 km (1 mi) depth
    |
    20 km (12 mi) distance
    | GUG (U. Chile) | Details
  • 06 May 2021 09:37 UTC
    | M 2.5 |
    21.9 km (13.6 mi) depth
    |
    10 km (6 mi) distance
    | GUG (U. Chile) | Details
  • 04 May 2021 15:20 UTC
    | M 3.5 |
    41.9 km (26 mi) depth
    |
    6 km (4 mi) distance
    | GUG (U. Chile) | Details
  • 04 May 2021 15:18 UTC
    | M 4.6 |
    25 km (15.5 mi) depth
    |
    16 km (10 mi) distance
    | GUG (U. Chile) | Details
  • 28 Apr 2021 21:53 UTC
    | M 2.7 |
    35.4 km (22 mi) depth
    |
    5 km (3 mi) distance
    | GUG (U. Chile) | Details
  • 28 Apr 2021 21:50 UTC
    | M 3.5 |
    36.2 km (22.5 mi) depth
    |
    10 km (6 mi) distance
    | GUG (U. Chile) | Details
  • 28 Apr 2021 21:48 UTC
    | M 3.0 |
    10 km (6.2 mi) depth
    |
    9 km (6 mi) distance
    | GUG (U. Chile) | Details
  • 28 Apr 2021 18:34 UTC
    | M 3.9 |
    27.7 km (17.2 mi) depth
    |
    12 km (8 mi) distance
    | GUG (U. Chile) | Details
  • 28 Apr 2021 18:25 UTC
    | M 4.1 |
    31.2 km (19.4 mi) depth
    |
    14 km (9 mi) distance
    | GUG (U. Chile) | Details
  • 27 Apr 2021 08:02 UTC
    | M 2.9 |
    22.9 km (14.2 mi) depth
    |
    18 km (11 mi) distance
    | GUG (U. Chile) | Details
  • Montrer tous

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