Mag. 3.9 earthquake - 27 km northwest of Figueira da Foz, Coimbra, Portugal, on 22 Oct 11:42 am (GMT +1) -

Mag. 3.9 earthquake  - 27 km northwest of Figueira da Foz, Coimbra, Portugal, on 22 Oct 11:42 am (GMT +1)

Minor magnitude 3.9 earthquake at 9 km depth

22 Oct 10:46 UTC: First to report: IGN after 3 minutes.
22 Oct 11:42: Hypocenter depth recalculated from 5.0 to 9.0 km (from 3.1 to 5.6 mi). Epicenter location corrected by 18 km (11.2 mi) towards E.
Date & time: 22 Oct 2020 10:42:55 UTC -
Local time at epicenter: 22 Oct 11:42 am (GMT +1)
Magnitude: 3.9
Depth: 9.0 km
Epicenter latitude / longitude: 40.2536°N / 9.1544°W (Portugal)
Nearby towns and cities:
26 km (16 mi) WNW of Buarcos (pop: 7,870)
27 km (17 mi) WNW of Figueira da Foz Municipality (pop: 46,600)
40 km (25 mi) WSW of Mira (pop: 7,680)
59 km (37 mi) NNW of Marinha Grande (pop: 28,900)
61 km (38 mi) SW of Aveiro (pop: 54,200)
63 km (39 mi) W of Coimbra (pop: 106,600)
64 km (40 mi) NNW of Leiria (pop: 45,100)
110 km (68 mi) SSW of Porto (pop: 249,600)
Weather at epicenter at time of quake:
Few Clouds 17.2°C (63 F), humidity: 82%, wind: 2 m/s (4 kts) from SE
Primary data source: IGN
Estimated released energy: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 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.
MagnitudeDepthLocationSource
M 3.99 km27 Km WNW of Figueira Da Foz, PortugalIGN
M 3.731 km42 Km WNW of Figueira Da Foz, PortugalEMSC

User reports for this quake (53)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Figueira da Foz / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s : I'm a Geography teacher and I was with a class on the top floor of the school. We felt the tables and cabinets shaking a little, and the funny thing is that the images and letters danced on the projection screen! | 2 users found this interesting.
59.2 km S of epicenter [Map] / Moderate shaking (MMI V) / both vertical and horizontal swinging / 2-5 s : First one big move, then vibrations few seconds. Cracks on the living room wall.
59.8 km SSE of epicenter [Map] / not felt (reported through our app)
Valado de Santa Quitéria— Alfeizerão, Leiria (87.7 km S of epicenter) [Map] / not felt / single vertical bump / 1-2 s : It was a sharp jolt.
Serra Boa Viagem (25.5 km ESE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 1-2 s
27.8 km ENE of epicenter [Map] / Light shaking (MMI IV)
53.6 km ENE of epicenter [Map] / not felt (reported through our app)
Coimbra (63.5 km E of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s : I felt a slight shake and the furniture vibrated for 3 seconds
Tabua (94.7 km E of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Quiaios, Figueira da Foz (26.3 km E of epicenter) [Map] / Light shaking (MMI IV)
Tocha (37.1 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short
Coimbra (63.6 km E of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s
23.1 km E of epicenter [Map] / Moderate shaking (MMI V) / complex motion difficult to describe / 5-10 s
Murtinheira, Figueira da Foz (22.6 km E of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s
Coimbra / Weak shaking (MMI III) / 1-2 s
Coimbra / Weak shaking (MMI III) / 1-2 s
Tondela / Very weak shaking (MMI II) / 2-5 s
Figueira da foz / Very weak shaking (MMI II) / very short
Nazare / not felt : We were travelling in our car at the time of the quake.
Meda de Mouros / Weak shaking (MMI III) / 2-5 s
Said do Porto / Very weak shaking (MMI II) / single lateral shake / 1-2 s : Felt the chair shake
Coimbra / Light shaking (MMI IV) : estava dormindo e despertei, tenho sono pesado,algumas coisas cairam
Ribeirão 4760-715 / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
Coimbra / not felt
Tondela / Very weak shaking (MMI II) / 2-5 s
Figueira da Foz / Light shaking (MMI IV) / 2-5 s
Coimbra / Weak shaking (MMI III) / 1-2 s
Figueira da foz / Weak shaking (MMI III) / 2-5 s
Estarreja / Weak shaking (MMI III) / 5-10 s
Figueira da Foz / not felt
figueira da foz / Light shaking (MMI IV)
coimbra / Weak shaking (MMI III) / 1-2 s
Sao Martinho do Porto / Very weak shaking (MMI II) / 1-2 s
Serra da Boa Viagem / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
Cantanhede / Very weak shaking (MMI II) / single lateral shake / very short : The pictures on the wall, fallen down and I felt a shake
Figueira da Foz / Weak shaking (MMI III) / single lateral shake / 1-2 s : I was sitting on the sofa and it vibrated. My sister also was in the lounge and felt a wobble.
Alhadas de baixo, Figueira da foz / Light shaking (MMI IV)
São Domingos de Rana (Portugal, 174 km S of epicenter) : Nope, senti nada, ou sou mesmo distraído (reported through EMSC)
Porto Salvo (Portugal, 172 km S of epicenter) : Don't felt anything (reported through EMSC)
Pontinha (Portugal, 167 km S of epicenter) : Não senti nada, em Telheiras (reported through EMSC)
Sacavém (Portugal, 165 km S of epicenter) : Senti uma pequena vibração vertical durante 3 ou 4 segundos. (reported through EMSC)
Viana do Castelo (Portugal, 163 km N of epicenter) : Não senti nada. (reported through EMSC)
(Portugal, 157 km S of epicenter) : Não senti nada. Certamente devido à distância do epicentro. (reported through EMSC)
Viseu (Portugal, 128 km E of epicenter) : Não senti nada em Viseu (reported through EMSC)
Senhora da Hora (Portugal, 117 km NE of epicenter) : Felt the window glasses shaking in a very silent street. Asked my EA wether she felt anything. Now we know it was an earthquake. (reported through EMSC)
Santo António dos Olivais (Portugal, 79 km E of epicenter) : Móveis tremeram momentaneamente em Coimbra. (reported through EMSC)
Coimbra (Portugal, 78 km E of epicenter) : Não percebi que era um sismo. A porta bateu e os gatos assustaram - se (reported through EMSC)
Nazaré (Portugal, 77 km S of epicenter) : vibrations ressenties assis à Nazaré (reported through EMSC)
Covões e Camarneira (Portugal, 64 km E of epicenter) : Grondement très audible et vibrations du plancher de ma maison très perceptible. (reported through EMSC)
Tavarede (Portugal, 43 km E of epicenter) : Copos da cristaleira a tilintar e no final sentiu-se bem o impacto nas sacadas da varanda. (reported through EMSC)
Figueira da Foz (Portugal, 42 km E of epicenter) : As coisas tremeram por alguns segundos. (reported through EMSC)
Buarcos (Portugal, 40 km E of epicenter) : A cadeira onde estou sentada abandonou na horizontal por breves segundos (reported through EMSC)
Buarcos (Portugal, 40 km E of epicenter) : A cadeira onde estou sentada abandonou na horizontal por breves segundos (reported through EMSC)
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Mag. 3.9 earthquake - 27 km northwest of Figueira da Foz, Coimbra, Portugal, on 22 Oct 11:42 am (GMT +1)

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