Terremoto moderato mag. 4.3 - 20 km a nord ovest da Portoviejo, Provincia de Manabi, Ecuador, martedí, 11 maggio 2021 -

Terremoto moderato mag. 4.3 - 20 km a nord ovest da Portoviejo, Provincia de Manabi, Ecuador, martedí, 11 maggio 2021

Terremoto moderato magnitudine 4.3 at 6 km depth

11 May 05:16 UTC: Primo a segnalare: IGEPN dopo 4 minuti.
11 May 05:30: Magnitudine ricalcolata da 4.2 a 4.3. Profondità ricalcolata da 7.0 a 6.0 km (da 4.3 a 3.7 mi). Posizione dell'epicentro corretta di 9.5 km (5.9 mi) al WNW.
Update Tue, 11 May 2021, 05:21
Moderate 4.2 quake hits near Portoviejo, Cantón Portoviejo, Provincia de Manabi, Ecuador
4.2 quake 11 May 12:12 am (GMT -5)
4.2 quake 11 May 12:12 am (GMT -5)
Just 9 minutes ago, a 4.2-magnitude earthquake struck near Portoviejo, Cantón Portoviejo, Provincia de Manabi, Ecuador. The tremor was recorded after midnight on Tuesday 11 May 2021 at 12:12 am local time, at a very shallow depth of 7 km below the surface.
The event was filed by the Institute of Geophysics of the National Polytechnic School in Quito (IGEPN), 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 4.2 as well.
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 Rocafuerte (pop. 10,300) located 0 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Portoviejo (pop. 170,300) located 15 km from the epicenter, Montecristi (pop. 18,400) 27 km away, Manta (pop. 183,200) 30 km away, Calceta (pop. 17,300) 33 km away, and Bahia de Caraquez (pop. 37,100) 36 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Chone (pop. 44,800) located 47 km from the epicenter, and Jipijapa (pop. 35,900) 50 km away.
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Earthquake data:

Data & ora: 11 May 2021 05:12:13 UTC -
Ora locale a epicentro: Tuesday, 11 May 2021 00:12 (GMT -5)
Magnitudine: 4.3
Profondità: 6.0 km
Epicentro latitudine / longitudine: 0.89°S / 80.53°W (Canton Portoviejo, Provincia de Manabi, Ecuador)
Vulcano più vicino: Quilotoa (173 km / 107 mi)
Nearby towns and cities:
10 km ONO da Rocafuerte (Manabí) (pop: 10,300) --> Vedi sismi vicini
20 km NNO da Portoviejo (Manabí) (pop: 170,300) --> Vedi sismi vicini
22 km ENE da Manta Ecuador (Manabí) (pop: 183,200) --> Vedi sismi vicini
22 km NE da Montecristi (Manabí) (pop: 18,400) --> Vedi sismi vicini
35 km SSO da Caracas (Cantón Sucre, Manabí) (pop: 37,100) --> Vedi sismi vicini
41 km O da Bolivar (Manabí) (pop: 17,300) --> Vedi sismi vicini
45 km NNO da Sucre (24 de Mayo, Manabí) (pop: 15,300) --> Vedi sismi vicini
53 km OSO da Chone (Manabí) (pop: 44,800) --> Vedi sismi vicini
162 km NNO da Guayaquil (Guayas) (pop: 1,952,000) --> Vedi sismi vicini
235 km OSO da Quito (Pichincha) (pop: 1,399,800) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Broken Clouds 22°C (72 F), humidity: 88%, wind: 4 m/s (7 kts) from SSW
Fonte dati primaria: IGEPN (Institute of Geophysics of the National Polytechnic School in Quito)
Stima dell'energia sismica liberata: 1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) More info
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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.ProfonditàUbicazioneFonte
4.36 kmEcuador - Manabi, A 9.32km De RocafuerteIGEPN
4.22 kmNEAR COAST OF ECUADOREMSC

User reports for this quake (6)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Canoa / Weak shaking (MMI III) / rattling, vibrating / very short : Windows moved  
san clemente / Strong shaking (MMI VI) / single lateral shake / very short : for me it was very quick and strong like a jolt It shook my 3 story concrete building and rattled the windows It woke me from sleep  
Crucita / Light shaking (MMI IV) / single lateral shake / 2-5 s : I felt a quick shake of the entire building. It was low intensity, but unmistakably an earthquake.  
Bahia de Caraquez, Manabi, Ecuador / Weak shaking (MMI III) / 2-5 s
Mejia-higueron / Very weak shaking (MMI II) / very short
San Clemente / Moderate shaking (MMI V) / horizontal (sideways) swinging / 5-10 s
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