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Séisme faible mag. 3.3 - 15 km au sud de Hollister, Comté de San Benito County, Californie, États-Unis, dimanche, 18 sept. 2022 21:47 (GMT -7) -

Séisme faible mag. 3.3 - 15 km au sud de Hollister, Comté de San Benito County, Californie, États-Unis, dimanche, 18 sept. 2022 21:47 (GMT -7) Séisme faible mag. 3.3 - 15 km au sud de Hollister, Comté de San Benito County, Californie, États-Unis, dimanche, 18 sept. 2022 21:47 (GMT -7)

Séisme faible magnitude 3.3 à 7.7 km de profondeur

19 Sep 04:50 UTC: Premier à signaler: VolcanoDiscovery après 3 minutes.
19 Sep 04:50: Maintenant en utilisant une nouvelle source de données: USGS
19 Sep 20:16: Magnitude recalculée de 3.4 à 3.3. Profondeur recalculée de 8.0 à 7.7 km (de 5 à 4.8 mi).
Update Mon, 19 Sep 2022, 04:57

Small magnitude 3.4 quake hits 9 miles southeast of Hollister, California, United States in the evening

3.4 quake 18 Sep 9:47 pm (GMT -7)
3.4 quake 18 Sep 9:47 pm (GMT -7)
A very shallow magnitude 3.4 earthquake was reported in the evening near Hollister, San Benito County, California, USA.
According to the United States Geological Survey, the quake hit on Sunday, September 18th, 2022, at 9:47 pm local time at a very shallow depth of 5 miles. 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 Incorporated Research Institutions for Seismology (IRIS), which listed it as a magnitude 3.4 earthquake as well. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 3.4, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 3.4.
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 Tres Pinos (pop. 480) located 5 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Hollister (pop. 37,500) located 9 miles from the epicenter, Salinas (pop. 157,400) 17 miles away, Prunedale (pop. 17,600) 18 miles away, Soledad (pop. 25,000) 21 miles away, Gilroy (pop. 53,200) 23 miles away, Watsonville (pop. 53,600) 26 miles away, and Seaside (pop. 33,000) 29 miles away. In San Jose (pop. 1,026,900, 52 miles away), the quake was probably not felt.

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Détails du séisme

Date et l'heure19 Sep 2022 04:47:18 UTC -
Heure locale à l'épicentredimanche, 18 sept. 2022 21:47 (GMT -7)
StatutConfirmé
Magnitude3.3
Profondeur7.7 km
Épicentre latitude / longitude36.72967°N / 121.34533°W (Comté de San Benito, Californie, États-Unis)
Antipode sismique36.73°S / 58.655°E
Intensité d'agitationSecousses faibles
Senti18 rapports
Source de données principaleUSGS (United States Geological Survey)
Volcan le plus prèsMammoth Mountain (229 km / 142 mi)
Lieux à proximité7 km SSO de Tres Pinos (pop: 476) | Carte | Séismes à proximité
15 km SSE de Hollister (pop: 37,500) | Carte | Séismes à proximité
28 km ENE de Salinas (pop: 157,400) | Carte | Séismes à proximité
29 km E de Prunedale (pop: 17,600) | Carte | Séismes à proximité
34 km N de Soledad (pop: 25,000) | Carte | Séismes à proximité
37 km SSE de Gilroy (pop: 53,200) | Carte | Séismes à proximité
84 km SE de San José (pop: 1,026,900) | Carte | Séismes à proximité
206 km S de Sacramento (pop: 490,700) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeClear Sky 16.3°C (61 F), humidity: 77%, wind: 8 m/s (15 kts) from SE
Énergie sismique estimée libérée5.6 x 109 joules (1.56 MWh, équivalent à 1.34 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.ProfondeurLieuSource
3.37.7 km7km SSW of Tres Pinos, CAUSGS
3.05 kmCENTRAL CALIFORNIAEMSC
3.37.7 kmCentral CaliforniaRaspberryShake
3.010 kmCentral CaliforniaIRIS

Seismograms

Seismic station: San Andreas Geophysical Obs., Hollister, CA, USA (SAO/BK network) | Distance from quake: 10 km / 6 mi | Show on map | Station Info
Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: 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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Témoignages pour ce séisme (18)

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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Hollister California (16.1 km NNW of epicenter) [Map] / Weak shaking (MMI III) : Shaking 2 times already the other one was around 8:30 PM | 4 users found this interesting.  
My home in Hollister / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Shakey and a bit jolty | One user found this interesting.  
Hollister (15.7 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / very short : Quick jolt  
Hollister, CA (13.3 km NNW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Hollister, San Benito, California (19.8 km NNW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 10-15 s
Hollister, CA (79.5 km ESE of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / very short
Hollister,CA (14.8 km NNW of epicenter) [Map] / Weak shaking (MMI III) : Quick jolt  
Hollister (14.6 km N of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s
Hollister, CA (13 km NNW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
Hollister California (14 km NNW of epicenter) [Map] / Light shaking (MMI IV) : A quick jolt  
Hollister ca (16.1 km NNW of epicenter) [Map] / Weak shaking (MMI III)
Hollister ca (14.2 km NNW of epicenter) [Map] / Very weak shaking (MMI II)
hollister ca (13.9 km NNW of epicenter) [Map] / Weak shaking (MMI III)
Hollister (15.7 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / very short : Quick jolt  
Gilroy CA / Light shaking (MMI IV) / rattling, vibrating / very short : Felt a jolt that woke me. (reported through our app)  
Hollister / Moderate shaking (MMI V) / rattling, vibrating / 10-15 s
Hollister / Very weak shaking (MMI II) / single lateral shake / 1-2 s
Hollister / Light shaking (MMI IV) / rattling, vibrating / 1-2 s

Earlier earthquakes in the same area

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