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Séisme faible mag. 4.4 - 36 km au nord-est de Isla Crequi Montfort , Oruro, Bolivie, jeudi, 28 janv. 2021 04:21 (Heure La Paz)

Séisme faible magnitude 4.4 à 256 km de profondeur

28 Jan 08:40 UTC: Premier à signaler: USGS après 19 minutes.

Update Thu, 28 Jan 2021, 08:45

Moderate 4.4 quake hits near Huanuni, Pantaleón Dalence, Oruro, Bolivia

4.4 quake 28 Jan 4:21 am (GMT -4)

Just 24 minutes ago, a 4.4-magnitude earthquake struck near Huanuni, Pantaleón Dalence, Oruro, Bolivia. The tremor was recorded early morning on Thursday 28 January 2021 at 4:21 am local time, at an intermediate to considerable depth of 255.5 km below the surface.
The event was filed by the United States Geological Survey (USGS), the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.4 as well.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Challapata (pop. 8,000, 40 km away), Huanuni (pop. 15,500, 46 km away), Llallagua (pop. 28,100, 55 km away), and Oruro (pop. 208,700, 76 km away), the quake was probably not felt.
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	28 Jan 2021 08:21:02 UTC
Heure locale à l'épicentre	Jeudi, 28 janv. 2021 04:21 (America/La Paz GMT -4)
Statut	Confirmé
Magnitude	4.4
Profondeur	255.5 km
Épicentre latitude / longitude	18.6557°S / 67.0426°W Oruro, Bolivie
Antipode	18.6557°N / 112.9574°E
Intensité d'agitation	Secousses très faibles
Senti	0 rapports
Source de données principale	USGS (United States Geological Survey)
Volcan le plus près	Laguna Jayu Khota (97 km / 60 mi)
Météo à l'épicentre au moment du séisme	Scattered Clouds 8°C (46 F), humidity: 51%, wind: 3 m/s (5 kts) from SW
Énergie sismique estimée libérée	2.5 x 10¹¹ joules (69.8 MWh, équivalent à 60 tonnes de TNT) \| about seismic energy

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Lieux à proximité

Distance	Lieu	Max. intensité(*)	Région	Pays
40 km (25 mi) SE de l'épicentre	Challapata (pop: 8,020)	II Très faible	Oruro	Bolivie
46 km (29 mi) NE de l'épicentre	Huanuni (pop: 15,500)	II Très faible	Oruro	Bolivie
55 km (34 mi) NE de l'épicentre	Llallagua (pop: 28,100)	II Très faible	Potosí	Bolivie
76 km (47 mi) N de l'épicentre	Oruro (pop: 208,700)	II Très faible	Oruro	Bolivie
162 km (101 mi) NE de l'épicentre	Quillacollo (pop: 87,300)	I Pas ressenti	Cochabamba	Bolivie
169 km (105 mi) NE de l'épicentre	Cochabamba (pop: 900,400)	I Pas ressenti	Cochabamba	Bolivie
170 km (106 mi) SE de l'épicentre	Potosí (pop: 141,300)	I Pas ressenti	Potosí	Bolivie
176 km (109 mi) NE de l'épicentre	Sacaba (pop: 107,600)	I Pas ressenti	Cochabamba	Bolivie
192 km (119 mi) E de l'épicentre	Sucre (pop: 224,800)	I Pas ressenti	Chuquisaca	Bolivie
267 km (166 mi) NW de l'épicentre	La Paz (pop: 812,800)	I Pas ressenti	La Paz	Bolivie

Notes:
(*) Intensité des secousses selon l'échelle d'intensité Mercalli modifiée (MMI)

Comparez les données sismiques

Données pour le même tremblement de terre telles que rapportées par différentes agences

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	Profondeut	Time GMT	Épicentre	Agence
4.4	256 km (159 mi)	2021-01-28 08:21:02	25 Km SW of Totoral, Bolivia	USGS (United States Geological Survey)
4.4	260 km (162 mi)	2021-01-28 08:21:02	ORURO, BOLIVIA 1.8 km (1.1 mi) différence d'épicentre avec USGS	EMSC (European-Mediterranean Seismological Centre)
4.0	280 km (174 mi)	2021-01-28 08:21:01	Central Bolivia 20 km (12 mi) différence d'épicentre avec USGS	GFZ (German Research Centre for Geosciences)
3.9	270 km (168 mi)	2021-01-28 08:21:02	Central Bolivia 22 km (14 mi) différence d'épicentre avec USGS	USP

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

Seismograms

Seismic station: Surire (AP02/C1 network) | Distance from quake: 222 km / 138 mi | Show on map | Station Info

Seismic station Surire: 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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Seismic station Surire: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Surire: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: La Paz, Bolivia (LPAZ/GT network) | Distance from quake: 287 km / 179 mi | Show on map | Station Info

Seismic station La Paz, Bolivia: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station La Paz, Bolivia: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station La Paz, Bolivia: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Daracena (TA01/C1 network) | Distance from quake: 391 km / 243 mi | Show on map | Station Info

Seismic station Daracena: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Daracena: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Daracena: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Mina Guanaco, Chile (GO02/C network) | Distance from quake: 770 km / 478 mi | Show on map | Station Info

Seismic station Mina Guanaco, Chile: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station Mina Guanaco, Chile: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Mina Guanaco, Chile: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: El Transito (AC05/C1 network) | Distance from quake: 1179 km / 732 mi | Show on map | Station Info

Seismic station El Transito: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station El Transito: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station El Transito: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Rapports d'utilisateurs 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.

Earlier earthquakes in the same area

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