Moderate mag. 4.2 earthquake - 12 km southwest of San Isidro, Pérez Zeledon, San Jose, Costa Rica, on Wednesday, 7 Apr 2021 11:51 am (GMT -6) -

Moderate mag. 4.2 earthquake - 12 km southwest of San Isidro, Pérez Zeledon, San Jose, Costa Rica, on Wednesday, 7 Apr 2021 11:51 am (GMT -6)

Moderate magnitude 4.2 earthquake at 8 km depth

7 Apr 17:56 UTC: First to report: INETER after 5 minutes.
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Date & time: 7 Apr 2021 17:51:16 UTC -
Local time at epicenter: Wednesday, 7 Apr 2021 11:51 am (GMT -6)
Magnitude: 4.2
Depth: 8.0 km
Epicenter latitude / longitude: 9.31°N / 83.79°W (Pérez Zeledon, San Jose, Costa Rica)
Nearest volcano: Irazu (75 km / 47 mi)
Nearby towns and cities:
12 km (7 mi) WSW of San Isidro (San José) (pop: 34,900) --> See nearby quakes!
14 km (8 mi) WSW of Daniel Flores (San José) (pop: 10,000) --> See nearby quakes!
59 km (37 mi) S of Paraiso (Cartago) (pop: 39,700) --> See nearby quakes!
67 km (42 mi) S of Turrialba (Cartago) (pop: 29,000) --> See nearby quakes!
69 km (43 mi) SE of Tejar (Acosta, San José) (pop: 22,400) --> See nearby quakes!
69 km (43 mi) SSE of San Miguel (San José) (pop: 28,800) --> See nearby quakes!
69 km (43 mi) SSE of Aserri (San José) (pop: 25,900) --> See nearby quakes!
70 km (43 mi) SSE of San Diego (Alajuelita, Cartago) (pop: 17,000) --> See nearby quakes!
76 km (47 mi) SSE of San Jose (San José) (pop: 335,000) --> See nearby quakes!
112 km (70 mi) SW of Puerto Limon (Limón) (pop: 63,100) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds 28.3°C (83 F), humidity: 58%, wind: 3 m/s (5 kts) from SW
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.
MagnitudeDepthLocationSource
4.28 km10 Km Al Noreste De Dominical, Costa RicaINETER
4.317 kmCOSTA RICAEMSC
4.317 km9 Km Al Suroeste De San Isidro De El General., Costa RicaRSN

User reports for this quake (32)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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San Isirdo de El General / Moderate shaking (MMI V) / complex rolling (tilting in multiple directions) / 2-5 s : Loud boom followed by windows and doors making noise. The floor family almost fell over and the curtains were moving. This made a lot of noise. My friend had just dropped me off and he said he thought his truck was hit by another car that's how strong it was. | 3 users found this interesting.
Villa Nueva Perez Zeledon / Light shaking (MMI IV) / both vertical and horizontal swinging / 5-10 s : I heard noises, which is unusual. Both sideways and up and down, lots of rattling of stuff in my house. Different than normal for here. | 2 users found this interesting.
La Ceniza Perez Zeledon (10.7 km E of epicenter) [Map] / Very weak shaking (MMI II) : I'm just outside and my wife in the kitchen. Short burst of movement very quick. Just enough time to know the sensation. (reported through our app)
Alfombra, Costa Rica / Light shaking (MMI IV) / 1-2 s : Pretty good jolt. A little different movement then most. Usual movement is east/west here. This moved west/north today. I went out to check the house. No apparent damage.
Tinamastes, Costa rica (2.2 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : The windows were moving, shaking a lot.
24.3 km SSE of epicenter [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Sitting in a beach chair near Uvita. Three of us felt it, like someone was shaking our chair.
1.5 km N of epicenter [Map] / Moderate shaking (MMI V) / rattling, vibrating / very short : Heard a bang. Felt a huge jolt. Doors and windows rattling.
San Francisco de Rivas, Perez Zeledon, San Jose (22.4 km NE of epicenter) [Map] / not felt : nothing
Uvita (17.9 km SSE of epicenter) [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 10-15 s
Platanillo de baru (2.8 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
Uvita (16 km SSE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s
28.8 km SSE of epicenter [Map] / Weak shaking (MMI III) / rattling, vibrating / 5-10 s
17 km SSE of epicenter [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Lots of movement the house shook.
Uvita (17.9 km SSE of epicenter) [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 10-15 s
Uvita (2.5 km SSW of epicenter) [Map] / Weak shaking (MMI III) / 5-10 s
Ojochal de Osa (40.8 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / simple rolling (tilting sideways along one direction) / 2-5 s
24.9 km SSE of epicenter [Map] / Weak shaking (MMI III) / vertical swinging (up and down) / 2-5 s
28.8 km SSE of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
12.1 km SSE of epicenter [Map] / Weak shaking (MMI III) / vertical swinging (up and down) / 2-5 s (reported through our app)
Platanillo (4.3 km SW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s (reported through our app)
Tinamaste, Costa Rica (1.1 km SE of epicenter) [Map] / Moderate shaking (MMI V) / single lateral shake / 1-2 s : A single big shake. Like the house got hit by a truck. (reported through our app)
Platanillo / Light shaking (MMI IV) / both vertical and horizontal swinging / 1-2 s : Very short earthquake
2K north of tinamastie costa rica / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s
tinamaste / Light shaking (MMI IV) / 10-15 s
In Perez Zeledon, Costa Rica / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Felt a side shake then a snap
Tinamaste / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
In Perez Zeledon, Costa Rica / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Felt a side shake then a snap
Tinamaste / Moderate shaking (MMI V) / 2-5 s
Platanillo, San Jose province, CR / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s
Escalares Mountain / Light shaking (MMI IV) / 5-10 s : Shaking with object rattling inside. Pictures on wall shifted.
Platanillo / Light shaking (MMI IV) / both vertical and horizontal swinging / 1-2 s : Very short earthquake
San juan Bosco / Weak shaking (MMI III) / 1-2 s
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