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Séisme modéré mag. 4.8 - South Pacific Ocean, 48 km au nord-ouest de Caracas, Équateur, mercredi, 17 août 2022 12:50 (GMT -5) -

Séisme modéré magnitude 4.8 à 10 km de profondeur

17 Aug 17:56 UTC: Premier à signaler: RaspberryShake après 5 minutes.
17 Aug 18:00: Magnitude recalculée de 4.1 à 4.8. Profondeur recalculée de 10.0 à 6.0 km (de 6.2 à 3.7 mi). Emplacement de l'épicentre corrigé de 28 km (17 mi) au E.
17 Aug 19:04: Magnitude recalculée de 4.8 à 4.5. Profondeur recalculée de 6.0 à 32.0 km (de 3.7 à 19.9 mi). Emplacement de l'épicentre corrigé de 18 km (11 mi) au SSW.
18 Aug 13:34: Maintenant en utilisant une nouvelle source de données: USGS

Update Wed, 17 Aug 2022, 18:06

Moderate 4.8 quake hits near Portoviejo, Cantón Portoviejo, Provincia de Manabi, Ecuador

4.8 quake 17 Aug 12:50 pm (GMT -5)

A magnitude 4.8 earthquake near Portoviejo, Cantón Portoviejo, Provincia de Manabi, Ecuador, was reported only 15 minutes ago by the citizen-seismograph network of RaspberryShake, considered the main national agency that monitors seismic activity in this part of the world. The earthquake occurred at a very shallow depth of 6 km beneath the epicenter around noon on Wednesday, August 17th, 2022, at 12:50 pm local time. 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 4.8 earthquake as well. A third agency, the Institute of Geophysics of the National Polytechnic School in Quito (IGEPN), reported the same quake at magnitude 4.6.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Caracas (pop. 37,100) located 57 km from the epicenter, Manta (pop. 183,200) 68 km away, Rocafuerte (pop. 10,300) 78 km away, Montecristi (pop. 18,400) 78 km away, Tosagua (pop. 14,700) 86 km away, Portoviejo (pop. 170,300) 89 km away, and Chone (pop. 44,800) 95 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Calceta (pop. 17,300) located 96 km from the epicenter.
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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Détails du séisme

Date et l'heure	17 Aug 2022 17:50:43 UTC -
Heure locale à l'épicentre	mercredi, 17 août 2022 12:50 (GMT -5)
Statut	Confirmé
Magnitude	4.8
Profondeur	10.0 km
Épicentre latitude / longitude	0.3841°S / 80.7973°W (South Pacific Ocean, Équateur)
Antipode sismique	0.384°N / 99.203°E
Intensité d'agitation	Secousses modérées près de l'épicentre
Senti	0 rapports
Source de données principale	USGS (United States Geological Survey)
Volcan le plus près	Quilotoa (217 km / 135 mi)
Lieux à proximité	48 km ONO de Caracas (Cantón Sucre) (pop: 37,100) \| Carte \| Séismes à proximité 65 km N de Manta Ecuador (pop: 183,200) \| Carte \| Séismes à proximité 75 km NNO de Montecristi (pop: 18,400) \| Carte \| Séismes à proximité 84 km NNO de Portoviejo (pop: 170,300) \| Carte \| Séismes à proximité 86 km ONO de Chone (pop: 44,800) \| Carte \| Séismes à proximité 87 km NO de Calceta (Bolivar) (pop: 17,300) \| Carte \| Séismes à proximité 226 km NNO de Guayaquil (pop: 1,952,000) \| Carte \| Séismes à proximité 253 km O de San Francisco de Quito (pop: 1,399,800) \| Carte \| Séismes à proximité 269 km SO de Isla Limones Island (pop: 7,000) \| Carte \| Séismes à proximité
Météo à l'épicentre au moment du séisme
Énergie sismique estimée libérée	1 x 10¹² joules (278 MWh, équivalent à 239 tonnes de TNT) \| about seismic energy

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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.	Profondeur	Lieu	Source
4.8	10 km	47 Km WNW of Bahía De Caráquez, Ecuador	USGS
4.6	3 km	Off Coast of Ecuador, A 84.14 Km De Bahia De Caraquez	IGEPN
4.5	30 km	NEAR COAST OF ECUADOR	EMSC
4.5	32 km	Near Coast of Ecuador	GFZ
4.8	10 km	Off Coast of Ecuador	RaspberryShake

Séismes les plus récents Top 20 dernières 24 heures Séismes en: Equateur

Seismograms

Seismic station: Tumaco, Narino, Colombia (TUM/CM network) | Distance from quake: 337 km / 209 mi | Show on map | Station Info

Seismic station Tumaco, Narino, Colombia: 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. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Témoignages pour ce séisme

Les rapports des utilisateurs estiment l'intensité perçue des secousses du sol en fonction de l' Échelle MMI (Modified Mercalli Intensity Scale).

There are no user reports for this quake.

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