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Moderate mag. 4.8 earthquake - 20 km west of Nicoya, Provincia de Guanacaste, Costa Rica, on Monday, May 23, 2022 at 11:34 am (GMT -6) -

Moderate mag. 4.8 earthquake - 20 km west of Nicoya, Provincia de Guanacaste, Costa Rica, on Monday, May 23, 2022 at 11:34 am (GMT -6) Moderate mag. 4.8 earthquake - 20 km west of Nicoya, Provincia de Guanacaste, Costa Rica, on Monday, May 23, 2022 at 11:34 am (GMT -6)

Moderate magnitude 4.8 earthquake at 35 km depth

23 May 17:37 UTC: First to report: VolcanoDiscovery after 3 minutes.
23 May 17:46: Now using data updates from EMSC
... [show all] ...
23 May 21:38: Epicenter location corrected by 4.8 km (3 mi) towards NW.
Update Mon, 23 May 2022, 17:46
Seismic-like event, possible earthquake, reported about 10 minutes ago near Santa Cruz, Guanacaste, Costa Rica
We are receiving unverified early reports of ground shaking possibly caused by seismic activity in or near Santa Cruz, Guanacaste, Costa Rica on 23 May 2022 (GMT) at approximately 17:33 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.

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Earthquake data

Earthquake details

Date & timeMay 23, 2022 17:34:39 UTC -
Local time at epicenterMonday, May 23, 2022 at 11:34 am (GMT -6)
StatusConfirmed
Magnitude4.8
Depth35.0 km
Epicenter latitude / longitude10.1548°N / 85.6327°W (Provincia de Guanacaste, Costa Rica)
Antipode10.155°S / 94.367°E
Shaking intensityLight shaking
Felt112 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoRincón de la Vieja (82 km / 51 mi)
Nearby towns and cities13 km (8 mi) SSW of Santa Cruz (Guanacaste) (pop: 12,300) | Show on map | Quakes nearby
20 km (12 mi) W of Nicoya (Guanacaste) (pop: 15,300) | Show on map | Quakes nearby
58 km (36 mi) SSW of Liberia (Guanacaste) (pop: 45,400) | Show on map | Quakes nearby
66 km (41 mi) WSW of Canas (Cañas, Guanacaste) (pop: 20,300) | Show on map | Quakes nearby
89 km (55 mi) WNW of Puntarenas (pop: 35,700) | Show on map | Quakes nearby
95 km (59 mi) W of Chacarita (Puntarenas) (pop: 26,400) | Show on map | Quakes nearby
166 km (103 mi) W of San Francisco (Heredia) (pop: 55,900) | Show on map | Quakes nearby
171 km (107 mi) W of San Jose (San José) (pop: 335,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 27.1°C (81 F), humidity: 63%, wind: 1 m/s (1 kts) from S
Estimated seismic energy released1 x 1012 joules (278 megawatt hours, equivalent to 239 tons of TNT) | 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
4.835 km15 Km S of Santa Cruz, Costa RicaUSGS
5.111 km11 Km Al Norte De Ostional, Costa RicaINETER
5.218 kmCosta Rica: 15 Km Al Sur De Santa Cruz, Guanacaste.RSN
4.860 kmCOSTA RICAEMSC
4.835 kmCosta RicaRaspberryShake

User reports for this quake (113)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Playa Avellanas, Guanacaste (21.9 km WNW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / very short : Weak shaking, short, sharp, sideways movement of my desk. Felt like and the vibration of an after a small explosion . Very short but little sharp strong | 2 users found this interesting.  
Playa Pelada Nosara Guanacaste Costa Rica (21.7 km S of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : I felt and heard the earthquake, also saw my house moving, from side to side and up & down at the same time. | 2 users found this interesting.  
Guiones (23.3 km S of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Felt like a shockwave traveling horizontally in a single direction through my location, then away, like a wave. | 2 users found this interesting.  
Santa cruz costa rica (12.7 km NNE of epicenter) [Map] / Strong shaking (MMI VI) / horizontal (sideways) swinging / 2-5 s : Les murs de la maison aller de gauche vers la droite comme si la maison était en carton. Nous avons ressenti d'abord quelques secondes avant comme une forte vibrations par le sol et après un bruit sourdes les murs de la maison qui se balancer il y a à | One user found this interesting.  
San Blass Carillo Guanacaste Costa Rica (36.4 km N of epicenter) [Map] / Light shaking (MMI IV) : Sitting on couch playing video games when suddenly the wall started shaking. Felt like someone was hitting them hard. Then after a brief pause a longer shaking took place and chairs, TV and other ovjects rattled. The floor also moved under my feet. | One user found this interesting.  
Tamarindo Costa Rica (27.6 km NW of epicenter) [Map] / Moderate shaking (MMI V) : Walls & windows banging for a few seconds. Felt floor moving, medium intensity | 2 users found this interesting.  
Samara / Moderate shaking (MMI V) / rattling, vibrating / 10-15 s : Das ganze Haus, in dem ich wohne, hat stark gewackelt. Die Materialien haben durch das Beben und Schütteln gequietscht. Alle Apartmenbewohner sind aus ihren Zimmern gekommen. Ich wohne auf einer Art Dachetage. Hier ist viel Holz, deshalb konnte man es gu | One user found this interesting.  
Jaco (135.2 km ESE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s : I was standing in my condo on the 8th floor. The walls made a cackling sound and it shook for about 10 - 11 seconds.  
Playas del Coco, Guanacaste, Costa Rica (41.6 km N of epicenter) [Map] / Light shaking (MMI IV) / complex motion difficult to describe / 5-10 s : Very light shaking for 3 seconds (I was sitting and my husband was standing - he felt nothing), then nothing for a few seconds, then slightly stronger shaking for about 3 seconds.  
Sardinal, Guanacaste (44.5 km N of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Felt like a bulldozer coming through and a slight roll under the floor. | One user found this interesting.  
tamarindo (31.1 km WNW of epicenter) [Map] / Very weak shaking (MMI II) / very short : un bruit sourd et une petite secousse les meubles on bougés | One user found this interesting.  
Playas del coco, Costa Rica (44.7 km N of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : Mild shaking | One user found this interesting.  
Costa Rica (43.6 km N of epicenter) [Map] / Light shaking (MMI IV) : Just want to report it | One user found this interesting.  
32 km of Paquera, Puntarenas, Puntarenas (76.7 km SE of epicenter) [Map] / Very weak shaking (MMI II) : Felt the bed shakinf | One user found this interesting.  
near Samara, Nicoya, Guanacaste (24.3 km S of epicenter) [Map] / Very weak shaking (MMI II) : In the house sitting on toilet | One user found this interesting.  
29 km of Santa Cruz, Guanacaste (29.1 km NW of epicenter) [Map] / Light shaking (MMI IV) : Sitting in the living room all doors started rattling | One user found this interesting.  
Paraíso, Guanacaste / Light shaking (MMI IV) / both vertical and horizontal swinging / 2-5 s : Sitting in my small office, feets on ground, felt vibrating all the building for some seconds. The structure was light shaking.  
Tamarindo / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Rocked my building | One user found this interesting.  
San juanillo / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Vibration and rattling | One user found this interesting.  
nosara / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Felt two distinct "bumps" about a second apart. House shook, doors and windows rattled. | One user found this interesting.  
Santa rosa / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : My room was a little bit shaking but it was very short and weak. | One user found this interesting.  
Playa Sámara / Moderate shaking (MMI V) / horizontal (sideways) swinging / 5-10 s : Light shaking for about 4 seconds then hard shaking for 4 seconds. Things fell off a shelf | One user found this interesting.  
Tamarindo, Costa Rica / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : Weak shaking - sitting on upper floor and thought the chair was wobbling. | One user found this interesting.  
Villareal, Costa rica (25.4 km NW of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s
Playa Santa Teresa (76 km SE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s
La Union, tilaran, gst (88.6 km ENE of epicenter) [Map] / Light shaking (MMI IV)
La fortuna, Costa Rica (110.9 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s
Playa Flamingo (32.9 km NNW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short : Thought someone walked into the room  
Playa Hermosa, jaco (130.6 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
Playa Flamingo Costa Rica (3.3 km ESE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Samara, guanacaste (34.5 km SSE of epicenter) [Map] / Moderate shaking (MMI V) / vibration and rolling / 2-5 s
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