Sismo leggero mag. 4.7 - Concepción Province, 26 km a sud-est da Concepción, Provincia de Concepcion, Region del Biobio, Cile, venerdì, 22 ott 2021 22:45 (GMT -3) -

Sismo leggero mag. 4.7 - Concepción Province, 26 km a sud-est da Concepción, Provincia de Concepcion, Region del Biobio, Cile, venerdì, 22 ott 2021 22:45 (GMT -3)

Sismo leggero magnitudine 4.7 at 50 km depth

23 Oct 01:50 UTC: Primo a segnalare: EMSC dopo 5 minuti.
23 Oct 01:52: Magnitudine ricalcolata da 4.8 a 4.7. Profondità ricalcolata da 26.0 a 44.0 km (da 16.2 a 27 mi). Posizione dell'epicentro corretta di 20 km (12 mi) al E.
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23 Oct 02:04: Magnitudine ricalcolata da 4.8 a 4.7. Profondità ricalcolata da 40.0 a 50.0 km (da 25 a 31 mi). Posizione dell'epicentro corretta di 0.9 km (0.6 mi) al E.
Update Sat, 23 Oct 2021, 02:00
Moderate earthquake of magnitude 4.8 just reported 26 km southeast of Concepcion, Chile
4.8 quake 22 Oct 10:45 pm (GMT -3)
4.8 quake 22 Oct 10:45 pm (GMT -3)
A moderately shallow magnitude 4.8 earthquake was reported late at night near Concepcion, Provincia de Concepción, Region del Biobio, Chile.
According to the European-Mediterranean Seismological Centre (EMSC), the quake hit on Friday, October 22nd, 2021, at 10:45 pm local time at a moderately shallow depth of 40 km. 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.
Our monitoring service identified a second report from the German Research Centre for Geosciences (GFZ) which listed the quake at magnitude 4.7.
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 Chiguayante (pop. 82,500) located 20 km from the epicenter, Concepcion (pop. 215,400) 26 km away, Penco (pop. 46,100) 28 km away, Coronel (pop. 92,900) 32 km away, Lota (pop. 49,800) 36 km away, Cabrero (pop. 18,300) 37 km away, Talcahuano (pop. 253,000) 37 km away, and Tomé (pop. 46,700) 38 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

Data & ora: 23 Oct 2021 01:45:27 UTC -
Ora locale a epicentro: venerdì, 22 ott 2021 22:45 (GMT -3)
Magnitudine: 4.7
Prof.: 50.0 km
Epicentro latitudine / longitudine: 36.94°S / 72.79°W (Concepción Province, Region del Biobio, Cile)
Antipode: 36.94°N / 107.21°E
Vulcano più vicino: Nevados de Chillán (126 km / 78 mi)
Nearby towns and cities:
21 km E da Chiguayante (Biobío) (pop: 82,500) --> Vedi sismi vicini
26 km ESE da Concepción (Biobío) (pop: 215,400) --> Vedi sismi vicini
29 km SE da Penco (Biobío) (pop: 46,100) --> Vedi sismi vicini
33 km ENE da Coronel (Biobío) (pop: 92,900) --> Vedi sismi vicini
36 km ONO da Cabrero (Biobio, Biobío) (pop: 18,300) --> Vedi sismi vicini
37 km ENE da Lota (Biobío) (pop: 49,800) --> Vedi sismi vicini
38 km SE da Talcahuano (Biobío) (pop: 253,000) --> Vedi sismi vicini
39 km SSE da Tomé (Biobío) (pop: 46,700) --> Vedi sismi vicini
70 km NO da Los Angeles (Biobío) (pop: 125,400) --> Vedi sismi vicini
434 km SSO da Santiago del Cile (Metropolitana) (pop: 4,837,300) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Clear Sky 9.4°C (49 F), humidity: 89%, wind: 1 m/s (2 kts) from SSW
Fonte dati primaria: EMSC (European-Mediterranean Seismological Centre)
Stima dell'energia sismica liberata: 7.1 x 1011 joules (197 MWh, equivalent to 169 tons of TNT) More info
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If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
Mag.Prof.UbicazioneFonte
4.750 kmBIO-BIO, CHILEEMSC
4.543 kmNear Coast of Central ChileGFZ
4.743 km16 Km E of Chiguayante, ChileUSGS

User reports for this quake (45)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Concepcion (32.2 km NW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 15-20 s : very loud sound | 2 users found this interesting.  
Termas de chillan / Moderate shaking (MMI V) / horizontal (sideways) swinging / 30-60 s : Estoy en un piso 6 se sintió bastante fuerte y de larga duración. El sector de nevados de chillan no muy denso en población | One user found this interesting.  
Concepcion, en mi casa (26.8 km WNW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : No nada estamos acostumbrados, somos un pais con constantes temblores | One user found this interesting.  
Concepcion, Biobío (29.7 km WNW of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / very short : Con mucho ruido previo y durante el temblor. Fue breve y como saltos. | One user found this interesting.  
Los angeles, chile (68.6 km SE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 s : In my house but i thing is intensity 6 not 4.1 | One user found this interesting.  
CONCEPCION (21.3 km W of epicenter) [Map] / Strong shaking (MMI VI) / rattling, vibrating / 2-5 s : Remezón fuerte y corto | One user found this interesting.  
Quillón chile (123.4 km ENE of epicenter) [Map] / Moderate shaking (MMI V) : Fuerte, ruidoso, movido | One user found this interesting.  
Concepción / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s : First a sound, then start shaking slowly, another sound and a strong shake. | One user found this interesting.  
San Pedro de la Paz / Weak shaking (MMI III) / both vertical and horizontal swinging / 20-30 s : sismo ruidoso y de magnitud fuerte al inicio, de corta duración | One user found this interesting.  
Coronel / Moderate shaking (MMI V) / horizontal (sideways) swinging / 20-30 s : Fue con mucho ruido | One user found this interesting. (reported through our app)  
Los Angeles / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Vibración, ruido corto | One user found this interesting.  
Concepción / Moderate shaking (MMI V) / rattling, vibrating / 1-2 s : It felt like 2 very short quakes but strong enough y to displace things. | One user found this interesting.  
Concepción centro / Moderate shaking (MMI V) / complex motion difficult to describe / 10-15 s : Cayeron cosas de repisa | One user found this interesting.  
Los Ángeles / Light shaking (MMI IV) / horizontal (sideways) swinging / very short : Con ruido | One user found this interesting.  
Coronel, Provincia de Concepción, Biobío (33.3 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / single lateral shake / 5-10 s : Moderate shaking  
San Pedro de la Paz (28.9 km WNW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s : Fue repentino, y se sintió con movimientos horizontales, como una fuerte sacudida.  
Santiago (439 km NNE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s (reported through our app)
Curanilahue, Provincia de Arauco, Biobío (78.7 km SW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 10-15 s
Concepción (28.6 km WNW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short
Cabrero (34.9 km ESE of epicenter) [Map] / Light shaking (MMI IV) / vibration and rolling / 5-10 s
Parral, Provincia de Linares, Maule Region (122.5 km NE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s (reported through our app)
Concepcion, Biobío (25.4 km WNW of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 10-15 s (reported through our app)
work (69.9 km SE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s (reported through our app)
Coronel, Bío Bío, Chile (33.7 km WSW of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s
Cabrero (39 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s
Concepción / Light shaking (MMI IV) / 2-5 s : Se sintió largo, ondulante, sin corte de energía, mi ubicación en ladera de cerro de poca altura  
San pedro de la paz / Strong shaking (MMI VI) / horizontal (sideways) swinging / 5-10 s
Santiago / not felt (reported through our app)
Concepcion / Weak shaking (MMI III) / 2-5 s : It was between weak and light shaking  
Hualqui región del bío Bio / Strong shaking (MMI VI) / vertical swinging (up and down) / 5-10 s : Fue demasiado fuerte sonó demasiado  
San Pedro de la Paz / Weak shaking (MMI III) / both vertical and horizontal swinging / 20-30 s : sismo ruidoso y de magnitud fuerte al inicio, de corta duración  
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