Moderate mag. 4.2 earthquake - 21 km southeast of San José, Costa Rica, on 2020-08-10 19:06:15 -

Moderate mag. 4.2 earthquake - 21 km southeast of San José, Costa Rica, on 2020-08-10 19:06:15

Moderate magnitude 4.2 earthquake at 1 km depth

11 Aug 01:14 UTC: First to report: INETER after 8 minutes.
Hypocenter depth recalculated from 1.0 to 2.0 km.
Aug 11 01:28: Magnitude recalculated from 4.3 to 4.2.
Hypocenter depth recalculated from 2.0 to 1.0 km.
Date & time: Aug 11, 2020 01:06:15 UTC -
Local time at epicenter: 2020-08-10 19:06:15
Magnitude: 4.2
Depth: 1.0 km
Epicenter latitude / longitude: 9.792°N / 83.95°W (El Guarco, Provincia de Cartago, Costa Rica)
Antipode: 9.792°S / 96.05°E
Nearest volcano: Irazu (24 km / 15 mi)
Nearby towns and cities:
6 km (4 mi) SE of Tobosi (Cartago) (pop: 4,060) --> See nearby quakes!
9 km (5 mi) SSW of Cartago (pop: 26,600) --> See nearby quakes!
11 km (7 mi) WSW of Paraiso (Cartago) (pop: 39,700) --> See nearby quakes!
13 km (8 mi) SSE of San Diego (Alajuelita, Cartago) (pop: 17,000) --> See nearby quakes!
15 km (9 mi) SE of San Miguel (San José) (pop: 28,800) --> See nearby quakes!
15 km (9 mi) SE of San Miguel (San José) (pop: 28,800) --> See nearby quakes!
16 km (10 mi) SE of Curridabat (San José) (pop: 34,600) --> See nearby quakes!
21 km (13 mi) SE of San Jose (San José) (pop: 335,000) --> See nearby quakes!
30 km (18 mi) SE of Heredia (pop: 21,900) --> See nearby quakes!
103 km (64 mi) WSW of Puerto Limon (Limón) (pop: 63,100) --> See nearby quakes!
Primary data source: INETER
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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.DepthLocationSource
4.21 km8 Km al suroeste de Cartago, Costa RicaINETER
4.28 km4 km al Este de San Cristobal, Desamparados. (Costa Rica)RSN
3.910 kmCosta RicaEMSC
3.910 km5 km N of San Marcos, Costa RicaUSGS

User reports for this quake (38)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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San Rafael, Escazú, San José (24.4 km NW of epicenter) [Map] / Light shaking (MMI IV) : Strong jolt that caused heavy furniture to jump, followed by a few seconds of the house shaking and rattling.  
Escazú Centro (24.7 km NW of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
La Cima de Dota (14.7 km SSE of epicenter) [Map] / Light shaking (MMI IV)
Sabanilla, Montes de Oca, San José (19.1 km NNW of epicenter) [Map] / Moderate shaking (MMI V)
San Juan de Dios, Desamparados (18 km NW of epicenter) [Map] / Moderate shaking (MMI V) : It was really hard (reported through our app)  
Escazu, San José (23.7 km WNW of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Just north of navarro (8.6 km ENE of epicenter) [Map] / Moderate shaking (MMI V) : Two quick pulses of shaking that were very obvious but did not move items observed.  
Muy fuerte Cartago Oreamuno primero mucha bulla (9.7 km NNE of epicenter) [Map] / Strong shaking (MMI VI) (reported through our app)
San Rafael, Escazú, San José (24.4 km NW of epicenter) [Map] / Light shaking (MMI IV) : Couch moved and walls created but no glassware rattling or pictures moving.  
San Juan, Tibás (25.1 km NW of epicenter) [Map] / Strong shaking (MMI VI) : Se sintió como en el aire (reported through our app)  
Escazu, San José (23.8 km WNW of epicenter) [Map] / Light shaking (MMI IV) : Very short - 2-3 seconds. Couch moved inside the house  
Alajuelita, Provincia de San José (21 km WNW of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
Asuncion, Belén, Heredia (31 km NW of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Cartago (8.3 km NNE of epicenter) [Map] / Very strong shaking (MMI VII) : Dio miedo, fuerte, pasó rapido (reported through our app)  
30518 / Very weak shaking (MMI II) : Was upstairs in my closet and felt a very subtle shake 2-3 times beneath my feet. I looked up at my clothes on hangers and notices all of them swaying ever so slightly.  
cariari Heredia / Moderate shaking (MMI V) : it hit hard and quick. not a roller and shaking like the others. i thought a car hit the 2 story building.  
San José Costa Rica / Strong shaking (MMI VI) : No problem.  
Ciudad Colón de Mora / Weak shaking (MMI III) : Just one quick jolt.  
San José Costa Rica / Strong shaking (MMI VI) : No problem.  
Asuncion de Belen / Light shaking (MMI IV)
San José Costa Rica / Strong shaking (MMI VI) : No problem.  
la palma pursical costa rica / Very weak shaking (MMI II)
San Jose, San Pedro De Montes de oca / Light shaking (MMI IV)
Escazú / Light shaking (MMI IV)
Escazu / Weak shaking (MMI III)
San José airport hotel / Light shaking (MMI IV) : Bed started to shake  
Alajuelita, San Jose province / Moderate shaking (MMI V) : Very quick but it definitely got my attention. Indoors  
San Marcos de Tarrazu / not felt : Today is Monday August 10, 2020  
Hatillo san jose costa rica / Very strong shaking (MMI VII) : Simbro muy fuerte estructura de las paredes se reventaron  
San Fransisco de dos Rios / Light shaking (MMI IV)
Santa Maria de Dota / Weak shaking (MMI III)
Santa ana / Light shaking (MMI IV)
San Francisco de Dos Rios / Light shaking (MMI IV)
San Rafael, escazu / Moderate shaking (MMI V)
Heredia (Costa Rica, 34 km NW of epicenter) : Moderado ! (reported through EMSC)  
Paraíso (Costa Rica, 23 km NE of epicenter) : Kind of like a jump and fall back feeling, only a few seconds and then stopped bam.All the animals are upset. Nothing fell. Just a definite lift up and to the side and down. (reported through EMSC)  
Paraíso (Costa Rica, 23 km NE of epicenter) : Felt a tremor in Cartago Costa Rica about 10 minutes ago (reported through EMSC)  
Heredia (Costa Rica, 29 km NW of epicenter) : Fue rápido (reported through EMSC)  
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