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Strong mag. 5.5 earthquake - North Pacific Ocean, 64 km south of San Jose, San José, Costa Rica, on Monday, Mar 20, 2023 at 7:44 pm (GMT -6) -

Strong mag. 5.5 earthquake - North Pacific Ocean, 64 km south of San Jose, San José, Costa Rica, on Monday, Mar 20, 2023 at 7:44 pm (GMT -6) Strong mag. 5.5 earthquake - North Pacific Ocean, 64 km south of San Jose, San José, Costa Rica, on Monday, Mar 20, 2023 at 7:44 pm (GMT -6)

Strong magnitude 5.5 earthquake at 35 km depth

21 Mar 01:46 UTC: First to report: VolcanoDiscovery after 2 minutes.
21 Mar 01:52: Now using data updates from GFZ
21 Mar 02:06: Now using data updates from USGS
22 Mar 01:20: Epicenter location corrected by 3.6 km (2.2 mi) towards W.
Update Tue, 21 Mar 2023, 01:51

Seismic-like event, possible earthquake, reported few minutes ago San José, Costa Rica

We are receiving unverified early reports of ground shaking possibly caused by seismic activity in or near San José, Costa Rica on 21 Mar 2023 (GMT) at approximately 01:43 GMT.
There are no details yet on the magnitude or depth of this possible quake. If confirmed, we can expect more accurate data to emerge in the next few minutes. The location, magnitude and time mentioned are indicative, based on our best-fit seismic model. They are temporary until our AllQuakes monitoring service receives more exact scientific data from a national or international seismological agency. Check back here shortly and stay safe.

Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online: Android | iOS

Earthquake details

Date & timeMar 21, 2023 01:44:13 UTC -
Local time at epicenterMonday, Mar 20, 2023 at 7:44 pm (GMT -6)
StatusConfirmed
Magnitude5.5
Depth35.0 km
Epicenter latitude / longitude9.3626°N / 84.1266°W (North Pacific Ocean, Costa Rica)
Antipode9.363°S / 95.873°E
Shaking intensityLight shaking
Felt303 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoIrazu (75 km / 47 mi)
Nearby towns and cities9 km (5 mi) SSE of Quepos (pop: 7,810) | Show on map | Quakes nearby
44 km (27 mi) SSE of Tejar (Acosta) (pop: 22,400) | Show on map | Quakes nearby
47 km (29 mi) W of San Isidro (pop: 34,900) | Show on map | Quakes nearby
60 km (37 mi) SSW of Paraiso (pop: 39,700) | Show on map | Quakes nearby
62 km (38 mi) S of Curridabat (pop: 34,600) | Show on map | Quakes nearby
64 km (40 mi) S of San Jose (pop: 335,000) | Show on map | Quakes nearby
70 km (44 mi) S of San Francisco (pop: 55,900) | Show on map | Quakes nearby
138 km (86 mi) WSW of Ciudad de Limon (pop: 63,100) | Show on map | Quakes nearby
284 km (176 mi) SE of Isla de Ometepe Island (pop: 30,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 26.8°C (80 F), humidity: 79%, wind: 0 m/s (1 kts) from ENE
Estimated seismic energy released1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) | about seismic energy
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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
5.535 kmCosta RicaUSGS
5.535 kmCosta RicaRaspberryShake
5.517 kmCosta Rica: 21 Km Al Sur De Quepos.RSN
5.634 kmCosta RicaINGV
5.44 km16 Km Al Sur De Puerto Quepos, Costa RicaINETER
5.540 kmCOSTA RICAEMSC
5.632 kmCosta RicaGFZ
5.510 kmCosta RicaIRIS
5.547 kmCosta RicaGeoAu

User reports for this quake (317)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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near Ciudad Cortés, Osa, Puntarenas (60.6 km ESE of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s : sitting on the couch and suddenly shaken. thought someone was trying to get into the house! saw walls "roll" a bit. first time for us. | 5 users found this interesting.  
Escazú, San José, CR (62.3 km N of epicenter) [Map] / Weak shaking (MMI III) / vertical swinging (up and down) / 5-10 s : I was sitting on the sofa. The shaking felt like a light bouncing up and down, as if I were on a weak floor and a heavy machine rolled by. I think it lasted for about 10 seconds and the bouncing got stronger towards the end when my closed glass sliding doors began rattling from the shake. | 3 users found this interesting.  
Manuel antonio (5 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 10-15 s : Sitting at el avion bar (airplane) and it shaked/rattled long enough for us to comment and question the bartender if it was a quake | 2 users found this interesting.  
Rohrmoser, San Jose (61.5 km N of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : shook pretty good, at least 5 seconds, had time to look at glass of water and observe the water moving in the glass. | 2 users found this interesting.  
Manuel antonio (5.3 km NNW of epicenter) [Map] / Very weak shaking (MMI II) : Light tremor | 3 users found this interesting.  
Bocas del Toro, Isla Colon, Panama (205.5 km E of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s : We were sitting next to the oceanfront and for some seconds I wasnt sure if we were on a boat or the pier - but my husband didn’t feel it. | One user found this interesting.  
Guadeloupe Costa Rica (66 km N of epicenter) [Map] / Very weak shaking (MMI II) : I was laying on my bed and thought I felt something. Then someone in another room asked if I felt that. | One user found this interesting.  
San Rafael de Santa Cruz de Turrialba de Cartago, (78.8 km NE of epicenter) [Map] / Light shaking (MMI IV) / 20-30 s : I was sitting in a chair when the house began to shake in what seemed a NW-SE primary direction. I remained seated and counted seconds from when noticed the shaking begin until it had subsided. | One user found this interesting.  
El Empalme (86.5 km NNW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Sitting in chair when it started shaking for more than five seconds. Felt like all the others in California that I’ve been around. | One user found this interesting.  
Villa Nueva, near San Isidro del General, Perez Ze (43.2 km E of epicenter) [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 5-10 s : Strongest in a while. swinging back and forth, but also vibration and shaking. Seems like about 10 seconds. Alarming! | One user found this interesting.  
Quepos (6.5 km NW of epicenter) [Map] / Light shaking (MMI IV) : Sitting at the dining table playing a game, noticed the shaking inside and immediately went under the table. | One user found this interesting.  
Platanillo de Barú, Costa Rica (36.2 km ESE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 30-60 s : An initial light shaking followed by stronger movements and extended set of smaller tremors. Lasted at least 30 seconds if not longer. | One user found this interesting.  
Santiago de Puriscal, Costa Rica (57.5 km NNW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 15-20 s : Sitting on a chair on a tiled patio. Several around me noticed and commented. Slower than shaking ... Side to side motion | One user found this interesting.  
Santo Domingo, Santa Bárbara, Heredia (77.1 km N of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s : Sitting in an easy chair swaying back and forth. The dogs got up and looked around to see what was happening. | One user found this interesting.  
Quepos, Puntarenas (8.2 km NNW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 20-30 s : The floor seemed to be moving | 2 users found this interesting.  
San José de Alajuela / not felt : We were sitting outside and the birds which had until this time settled down for the night, started screeching intensely. The dog also reacted oddly by hiding under my legs. | One user found this interesting.  
Quepos (7.5 km NNW of epicenter) [Map] / Weak shaking (MMI III) : Nous étions dans notre appartement de location à Quepos et tout l’appartement a légèrement tremblé pendant 8/10 secondes  
Sur de Palo Verde Cartago (50.1 km NNE of epicenter) [Map] / Light shaking (MMI IV) : Cabin shook for about 25-45 seconds. Fridge and objects inside shook and rattled. Strong movement felt in the ground  
Jaco, costa Rica (60.2 km WNW of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s : Sitting at dinner table with friends. Felt like a heavy truck passing. House shook slightly. No damage apparent. Riverwalk condo in southeast Jaco  
Escaleras, Costa Rica (39.5 km ESE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : It was fairly gentle but felt like big swings. All the doors and windows rattled, but nothing fell. It wasn't particularly abrupt or violent and took a good 10 seconds to fade away entirely.  
Quizarra, Pérez Zeledón (56.4 km E of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : Watching Tv and my sofa started moving sideways. Short but strong movement. The noises of the ceiling and windows woke up my dogs. (reported through our app)  
Dominical (31.5 km ESE of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 15-20 s : I was sitting on a stone bench outside and it started shaking horizontally | One user found this interesting.  
Santa Elana, Perez Zeledón (54.7 km E of epicenter) [Map] / Weak shaking (MMI III) / complex rolling (tilting in multiple directions) : Inside wood house. Slow rolling motion lasted a longtime | One user found this interesting.  
Jaco (62.3 km WNW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : We were watching tv in Jaco. The room seemed to move around us. | One user found this interesting.  
Volio (93 km NNW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 10-15 s : Small swaying motion. | One user found this interesting. (reported through our app)  
Quepos (7.4 km NNW of epicenter) [Map] / Weak shaking (MMI III) : The room and floor shook | One user found this interesting.  
San Gerardo de Rivas (60.1 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 20-30 s : Sitting on balcony outside big rubble, tailed off for ages. | One user found this interesting. (reported through our app)  
Alajuelita, Provincia de San José (61.1 km N of epicenter) [Map] / Very weak shaking (MMI II) : It was kinda long but weak | One user found this interesting.  
Tinamastes, San José Province, Costa Rica (40.6 km E of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s : Jiggling in my chair at home. House made a small cracking noise. Vibration for many seconds. | One user found this interesting.  
near San Isidro, Pérez Zeledón (29.7 km ESE of epicenter) [Map] / Strong shaking (MMI VI) / horizontal (sideways) swinging / 10-15 s : Sitting outdoors in a car. Car moved. Trees moved. | One user found this interesting. (reported through our app)  
San Rafael, Escazú, San José (64.4 km N of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Sitting in bed | One user found this interesting.  
Show more
Show more

Aftershocks

[More info]

Recorded aftershocks, latest first (81 quakes)

Date and timeMag
Depth
LocationDetails
May 19, 2023 03:59
3 weeks ago
2.5

26 km
41 km S of San Jose, San José, Costa RicaMore
May 17, 2023 18:29
3 weeks ago
2.7

29 km
North Pacific Ocean, 28 km SW of San Isidro, Costa RicaMore
May 15, 2023 08:38
3 weeks ago
2.2

3 km
North Pacific Ocean, 12 km SW of Parrita, Provincia de Puntarenas, Costa RicaMore
May 13, 2023 15:09
3 weeks ago
3.0

24 km
North Pacific Ocean, 66 km SW of San Jose, San José, Costa RicaMore
May 13, 2023 08:04
3 weeks ago
2.5

23 km
North Pacific Ocean, 56 km S of San Jose, San José, Costa RicaMore
May 11, 2023 02:39
4 weeks ago
2.7

13 km
North Pacific Ocean, 48 km SW of San Isidro, Costa RicaMore
May 11, 2023 01:36
4 weeks ago
2.6

30 km
North Pacific Ocean, 80 km SW of San Jose, San José, Costa RicaMore
May 10, 2023 11:16
4 weeks ago
2.5

19 km
North Pacific Ocean, 58 km S of San Jose, San José, Costa RicaMore
May 10, 2023 09:08
4 weeks ago
2.6

18 km
North Pacific Ocean, 74 km SW of San Jose, San José, Costa RicaMore
May 10, 2023 04:31
4 weeks ago
2.0

25 km
32 km S of San Jose, San José, Costa RicaMore
May 9, 2023 05:53
4 weeks ago
2.7

11 km
North Pacific Ocean, 71 km S of San Jose, San José, Costa RicaMore
May 9, 2023 02:48
4 weeks ago
2.6

8 km
16 km W of San Isidro, Pérez Zeledon, Provincia de San José, Costa RicaMore
May 8, 2023 08:38
4 weeks ago
2.4

25 km
Provincia de Puntarenas, 18 km S of Tejar, Costa RicaMore
May 6, 2023 21:15
4 weeks ago
3.6

25 km
North Pacific Ocean, 28 km SW of San Isidro, Costa RicaMore
May 6, 2023 05:39
4 weeks ago
2.1

19 km
Provincia de Puntarenas, 44 km S of San Jose, San José, Costa RicaMore
May 6, 2023 04:31
4 weeks ago
2.2

21 km
Provincia de Puntarenas, 53 km SW of San Jose, San José, Costa RicaMore
May 5, 2023 12:32
4 weeks ago
3.0

15 km
North Pacific Ocean, 39 km W of San Isidro, Costa RicaMore
May 5, 2023 11:16
4 weeks ago
2.4

21 km
17 km S of Tejar, Acosta, Provincia de San José, Costa RicaMore
May 4, 2023 18:49
5 weeks ago
3.2

23 km
North Pacific Ocean, 67 km SW of San Jose, San José, Costa RicaMore
May 4, 2023 09:54
5 weeks ago
2.7

11 km
North Pacific Ocean, 73 km SW of San Jose, San José, Costa RicaMore
May 4, 2023 06:49
5 weeks ago
3.2

23 km
North Pacific Ocean, 68 km SW of San Jose, San José, Costa RicaMore
May 4, 2023 06:49
5 weeks ago
2.8

15 km
North Pacific Ocean, 65 km SW of San Jose, San José, Costa RicaMore
May 4, 2023 04:22
5 weeks ago
2.8

22 km
North Pacific Ocean, 78 km S of San Jose, San José, Costa RicaMore
May 3, 2023 19:44
5 weeks ago
2.6

17 km
Provincia de Puntarenas, 21 km S of Tejar, Costa RicaMore
May 2, 2023 23:34
5 weeks ago - felt
4.0

30 km
53 km S of San Jose, San José, Costa RicaMore
May 2, 2023 20:48
5 weeks ago
2.8

27 km
40 km S of San Jose, San José, Costa RicaMore
May 1, 2023 08:03
5 weeks ago
2.4

28 km
20 km W of San Isidro, Pérez Zeledon, Provincia de San José, Costa RicaMore
Apr 30, 2023 07:10
5 weeks ago
2.2

27 km
24 km NW of San Isidro, Pérez Zeledon, Provincia de San José, Costa RicaMore
Apr 30, 2023 01:27
5 weeks ago
3.1

21 km
North Pacific Ocean, 73 km S of San Jose, San José, Costa RicaMore
Apr 29, 2023 05:16
5 weeks ago
2.4

33 km
42 km S of San Jose, San José, Costa RicaMore
Apr 28, 2023 18:05
5 weeks ago
2.7

15 km
North Pacific Ocean, 61 km S of San Jose, San José, Costa RicaMore
Apr 28, 2023 09:57
6 weeks ago
3.0

27 km
50 km S of San Jose, San José, Costa RicaMore
Apr 26, 2023 17:02
6 weeks ago
3.6

27 km
North Pacific Ocean, 47 km S of Tejar, Costa RicaMore
Apr 25, 2023 01:04
6 weeks ago
2.4

24 km
14 km W of San Isidro, Pérez Zeledon, Provincia de San José, Costa RicaMore
Apr 23, 2023 01:03
6 weeks ago
2.4

29 km
North Pacific Ocean, 70 km S of San Jose, San José, Costa RicaMore
Apr 22, 2023 18:41
6 weeks ago
2.6

15 km
North Pacific Ocean, 71 km S of San Jose, San José, Costa RicaMore
Apr 22, 2023 17:35
6 weeks ago
2.8

26 km
44 km S of San Jose, San José, Costa RicaMore
Apr 22, 2023 16:25
6 weeks ago
2.5

26 km
45 km S of San Jose, San José, Costa RicaMore
Apr 21, 2023 04:40
7 weeks ago
2.2

4 km
North Pacific Ocean, 21 km SW of Quepos, Provincia de Puntarenas, Costa RicaMore
Apr 21, 2023 03:21
7 weeks ago
2.2

6 km
North Pacific Ocean, 21 km SW of Quepos, Provincia de Puntarenas, Costa RicaMore
Apr 20, 2023 10:18
7 weeks ago
3.2

30 km
North Pacific Ocean, 84 km S of San Jose, San José, Costa RicaMore
Apr 19, 2023 04:41
7 weeks ago
2.4

26 km
Provincia de Puntarenas, 20 km S of Tejar, Costa RicaMore
Apr 18, 2023 12:49
7 weeks ago
3.1

28 km
North Pacific Ocean, 33 km SW of San Isidro, Costa RicaMore
Apr 16, 2023 22:52
7 weeks ago
4.1

65 km
North Pacific Ocean, 28 km SW of San Isidro, Costa RicaMore
Apr 16, 2023 06:37
7 weeks ago
2.7

29 km
51 km S of San Jose, San José, Costa RicaMore
Apr 15, 2023 04:14
7 weeks ago
3.6

23 km
Provincia de Puntarenas, 46 km S of San Jose, San José, Costa RicaMore
Apr 15, 2023 00:34
7 weeks ago
2.5

50 km
Provincia de Puntarenas, 60 km S of San Jose, San José, Costa RicaMore
Apr 14, 2023 20:37
7 weeks ago
3.4

16 km
North Pacific Ocean, 86 km S of San Jose, San José, Costa RicaMore
Apr 13, 2023 08:13
8 weeks ago
2.7

31 km
North Pacific Ocean, 58 km S of San Jose, San José, Costa RicaMore
Apr 13, 2023 08:11
8 weeks ago
2.9

20 km
Provincia de Puntarenas, 51 km S of San Jose, San José, Costa RicaMore
Apr 13, 2023 01:10
8 weeks ago
2.6

30 km
North Pacific Ocean, 97 km S of San Jose, San José, Costa RicaMore
Apr 11, 2023 08:30
8 weeks ago
2.2

24 km
13 km SE of Tejar, Acosta, Provincia de San José, Costa RicaMore
Apr 11, 2023 06:33
8 weeks ago
2.6

47 km
48 km SE of San Jose, San José, Costa RicaMore
Apr 11, 2023 00:33
8 weeks ago
3.0

16 km
North Pacific Ocean, 68 km SW of San Jose, San José, Costa RicaMore
Apr 8, 2023 13:26
8 weeks ago - felt
3.5

5 km
19 km NW of San Isidro, Pérez Zeledon, Provincia de San José, Costa RicaMore
Apr 7, 2023 20:51
8 weeks ago
2.7

5 km
North Pacific Ocean, 75 km S of San Jose, San José, Costa RicaMore
Apr 5, 2023 04:23
9 weeks ago
2.8

31 km
20 km W of San Isidro, Pérez Zeledon, Provincia de San José, Costa RicaMore
Apr 3, 2023 15:04
9 weeks ago
2.7

56 km
Provincia de Puntarenas, 47 km S of San Jose, San José, Costa RicaMore
Apr 3, 2023 10:34
9 weeks ago
2.9

32 km
41 km S of San Jose, San José, Costa RicaMore
Apr 1, 2023 02:19
9 weeks ago
2.5

27 km
35 km S of San Jose, San José, Costa RicaMore
Mar 31, 2023 06:40
10 weeks ago
2.8

4 km
North Pacific Ocean, 73 km S of San Jose, San José, Costa RicaMore
Mar 30, 2023 02:48
10 weeks ago
2.6

19 km
North Pacific Ocean, 73 km S of San Jose, San José, Costa RicaMore
Mar 29, 2023 12:50
10 weeks ago
3.0

30 km
North Pacific Ocean, 27 km SW of San Isidro, Costa RicaMore
Mar 29, 2023 10:20
10 weeks ago
2.9

30 km
Provincia de Puntarenas, 56 km SW of San Jose, San José, Costa RicaMore
Mar 28, 2023 02:51
10 weeks ago
2.7

3 km
North Pacific Ocean, 75 km SW of San Jose, San José, Costa RicaMore
Mar 27, 2023 02:40
10 weeks ago
2.5

20 km
North Pacific Ocean, 88 km S of San Jose, San José, Costa RicaMore
Mar 26, 2023 08:42
10 weeks ago
2.3

13 km
North Pacific Ocean, 16 km SW of Quepos, Provincia de Puntarenas, Costa RicaMore
Mar 24, 2023 09:23
11 weeks ago
2.3

9 km
North Pacific Ocean, 79 km SW of San Jose, San José, Costa RicaMore
Mar 24, 2023 00:44
11 weeks ago - felt
3.8

5 km
North Pacific Ocean, 79 km S of San Jose, San José, Costa RicaMore
Mar 22, 2023 07:18
11 weeks ago
3.1

7 km
North Pacific Ocean, 79 km S of San Jose, San José, Costa RicaMore
Mar 22, 2023 07:09
11 weeks ago
3.9

1 km
North Pacific Ocean, 43 km S of Tejar, Costa RicaMore
Mar 22, 2023 07:09
11 weeks ago
4.2

20 km
North Pacific Ocean, 77 km S of San Jose, San José, Costa RicaMore
Mar 22, 2023 01:44
11 weeks ago
5.0

64 km
40 km S of San Jose, San José, Costa RicaMore
Mar 21, 2023 18:13
11 weeks ago
2.9

11 km
North Pacific Ocean, 86 km S of San Jose, San José, Costa RicaMore
Mar 21, 2023 13:22
11 weeks ago
3.2

12 km
North Pacific Ocean, 77 km S of San Jose, San José, Costa RicaMore
Mar 21, 2023 07:38
11 weeks ago
2.7

11 km
North Pacific Ocean, 85 km S of San Jose, San José, Costa RicaMore
Mar 21, 2023 04:08
11 weeks ago - felt
3.0

13 km
North Pacific Ocean, 72 km S of San Jose, San José, Costa RicaMore
Mar 21, 2023 03:54
11 weeks ago - felt
3.8

31 km
40 km S of San Jose, San José, Costa RicaMore
Mar 21, 2023 03:09
11 weeks ago
2.5

5 km
North Pacific Ocean, 85 km S of San Jose, San José, Costa RicaMore
Mar 21, 2023 01:58
11 weeks ago - felt
2.9

5 km
North Pacific Ocean, 76 km S of San Jose, San José, Costa RicaMore
Mar 21, 2023 01:50
11 weeks ago
3.4

11 km
North Pacific Ocean, 86 km S of San Jose, San José, Costa RicaMore
Show all

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