Moderate mag. 4.7 earthquake - Caribbean Sea, 7.9 km east of Guanica, Puerto Rico, on Thursday, Dec 24, 2020 1:33 pm (GMT -4) -

Moderate mag. 4.7 earthquake - Caribbean Sea, 7.9 km east of Guanica, Puerto Rico, on Thursday, Dec 24, 2020 1:33 pm (GMT -4)

Moderate magnitude 4.7 earthquake at 9 km depth

24 Dec 17:37 UTC: First to report: USGS after 4 minutes.
24 Dec 17:48: Hypocenter depth recalculated from 5.0 to 9.8 km (from 3.1 to 6.1 mi). Epicenter location corrected by 8.6 km (5.3 mi) towards NE.
24 Dec 17:52: Magnitude recalculated from 4.8 to 4.7. Hypocenter depth recalculated from 9.8 to 9.0 km (from 6.1 to 5.6 mi). Epicenter location corrected by 10.1 km (6.3 mi) towards WSW.
Update Thu, 24 Dec 2020, 17:42
Magnitude 4.8 earthquake strikes near Yauco, Puerto Rico
4.8 quake 24 Dec 1:33 pm (GMT -4)
4.8 quake 24 Dec 1:33 pm (GMT -4)
An earthquake of magnitude 4.8 occurred only 8 minutes ago 12 km southeast of Yauco, Puerto Rico, the United States Geological Survey (USGS) reported.
The quake hit at a very shallow depth of 5 km beneath the epicenter near Yauco, Yauco Barrio-Pueblo, Puerto Rico, around noon on Thursday 24 December 2020 at 1:33 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage.
Moderate shaking probably occurred in Indios (pop. 1,700) located 7 km from the epicenter.
In Maria Antonia (pop. 1,500) located 10 km from the epicenter, Guayanilla (pop. 5,200) 10 km away, Guanica (pop. 9,200) 11 km away, Palomas (pop. 2,300) 11 km away, Yauco (pop. 20,300) 12 km away, Peñuelas (pop. 6,800) 17 km away, and Ponce (pop. 152,600) 22 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Bayamon (pop. 203,500) located 87 km from the epicenter, and San Juan (pop. 418,100) 96 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
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Earthquake data

Date & time: Dec 24, 2020 17:33:47 UTC -
Local time at epicenter: Thursday, Dec 24, 2020 1:33 pm (GMT -4)
Magnitude: 4.7
Depth: 9.0 km
Epicenter latitude / longitude: 17.9461°N / 66.8385°W (Caribbean Sea, Peñuelas, Puerto Rico)
Antipode: 17.946°S / 113.162°E
Nearby towns and cities:
6 km (4 mi) SSW of Indios (Guayanilla) (pop: 1,740) --> See nearby quakes!
8 km (5 mi) ESE of Guanica (Guánica) (pop: 9,220) --> See nearby quakes!
10 km (6 mi) SSW of Guayanilla (pop: 5,210) --> See nearby quakes!
10 km (6 mi) S of Yauco (pop: 20,300) --> See nearby quakes!
17 km (11 mi) SW of Penuelas (Peñuelas) (pop: 6,850) --> See nearby quakes!
20 km (12 mi) SE of Sabana Grande (pop: 8,960) --> See nearby quakes!
24 km (15 mi) WSW of Ponce (pop: 152,600) --> See nearby quakes!
26 km (16 mi) ESE of Lajas (pop: 5,260) --> See nearby quakes!
27 km (16 mi) SE of San German (San Germán) (pop: 12,100) --> See nearby quakes!
27 km (17 mi) SSW of Adjuntas (pop: 5,080) --> See nearby quakes!
88 km (55 mi) SW of Bayamon (Bayamón) (pop: 203,500) --> See nearby quakes!
97 km (60 mi) SW of San Juan (pop: 418,100) --> See nearby quakes!
49 km (31 mi) SW of Puerto Rico Island (pop: 3,474,200) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 28.9°C (84 F), humidity: 57%, wind: 2 m/s (4 kts) from ESE
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 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
4.79 km- 5 km SSW of Indios, Puerto RicoUSGS
4.810 kmPUERTO RICO REGIONEMSC
4.910 kmPuerto Rico RegionGFZ

User reports for this quake (20)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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MANATI / Light shaking (MMI IV) / 1-2 s : 1st shake almost light undetectable floor shake. 2nd shake more pronounced table shook more forceful. sitting in recliner | One user found this interesting.  
San Sebastián / Weak shaking (MMI III) / 2-5 s : Sitting on front porch and my dog started whining. Felt the ground shake slightly for a few seconds. Power lines swayed slightly | One user found this interesting.  
Manati PR (65.3 km NE of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s : I felt like a small jump then waves of movement. | One user found this interesting. (reported through our app)  
Cabo Rojo, Puerto Rico / Strong shaking (MMI VI) : Palm trees in front the house swaying like when Maria hit | One user found this interesting.  
Sabana Grande,PR (21.6 km NW of epicenter) [Map] / Light shaking (MMI IV) : Shaking, vibrating, lasted about 6 seconds. No noise wich is kind of strange. (reported through our app)  
Puerto Rico, San Juan Antiguo Barrio, San Juan (101.3 km NE of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s
Cataño (94.5 km NE of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s (reported through our app)
Comunas, Playa Barrio, Yabucoa (110.8 km E of epicenter) [Map] / Very weak shaking (MMI II) / very short (reported through our app)
Guaynabo (94.4 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / complex motion difficult to describe / 1-2 s
San Sebastian (46.6 km NNW of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s (reported through our app)
Playita Cortada, Descalabrado Barrio, Santa Isabel (43.2 km E of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s
Moca, Moca Barrio-Pueblo (56.6 km NNW of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Ponce, Segundo Barrio (27.4 km ENE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Santo Domingo, Peñuelas (18.5 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / 5-10 s
Bayamon, Bayamón Barrio-Pueblo (84.7 km ENE of epicenter) [Map] / Light shaking (MMI IV) / 15-20 s (reported through our app)
Yauco / Weak shaking (MMI III) / vibration and rolling / very short : Felt like being on a construction site with a large truck rolling by along with the noise  
utuado puerto rico 00461 / Light shaking (MMI IV) / 5-10 s
Arecibo / Strong shaking (MMI VI) / single lateral shake / very short
Ponce / Weak shaking (MMI III)
Quebradillas / Weak shaking (MMI III) / single lateral shake / 2-5 s
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