Moderate mag. 4.4 earthquake - 4.4 km southwest of Guánica, Puerto Rico, on Sunday, June 28, 2020 at 06:45 (GMT) -

Moderate mag. 4.4 earthquake - 4.4 km southwest of Guánica, Puerto Rico, on Sunday, June 28, 2020 at 06:45 (GMT)

Moderate magnitude 4.4 earthquake at 8 km depth

28 Jun 06:54 UTC: First to report: USGS after 9 minutes.
Jun 28 09:04: Magnitude recalculated from 4.7 to 4.4.
Hypocenter depth recalculated from 9.8 to 8.0 km.
Date & time: Jun 28, 2020 06:45:06 UTC -
Magnitude: 4.4
Depth: 8.0 km
Epicenter latitude / longitude: 17.9461°N / 66.9393°W (Montalva Barrio, Guanica, Puerto Rico)
Antipode: 17.946°S / 113.061°E
Nearby towns and cities:
4 km (3 mi) SW of Guanica (Guánica) (pop: 9,220) --> See nearby quakes!
14 km (9 mi) SW of Yauco (pop: 20,300) --> See nearby quakes!
15 km (9 mi) S of Sabana Grande (pop: 8,960) --> See nearby quakes!
17 km (11 mi) SE of Lajas (pop: 5,260) --> See nearby quakes!
18 km (11 mi) WSW of Guayanilla (pop: 5,210) --> See nearby quakes!
19 km (12 mi) SE of San German (San Germán) (pop: 12,100) --> See nearby quakes!
26 km (16 mi) WSW of Penuelas (Peñuelas) (pop: 6,850) --> See nearby quakes!
26 km (16 mi) S of Maricao (pop: 1,170) --> See nearby quakes!
27 km (17 mi) SE of Cabo Rojo (pop: 10,800) --> See nearby quakes!
29 km (18 mi) SE of Hormigueros (pop: 11,900) --> See nearby quakes!
34 km (21 mi) WSW of Ponce (pop: 152,600) --> See nearby quakes!
105 km (65 mi) SW of San Juan (pop: 418,100) --> See nearby quakes!
57 km (36 mi) SW of Puerto Rico Island (pop: 3,474,200) --> See nearby quakes!
161 km (100 mi) W of Vieques Island (pop: 9,300) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 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
4.48 km4 km SW of Guánica, Puerto RicoUSGS
4.710 kmPuerto Rico RegionEMSC

User reports for this quake (70)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Cayey,PR, US (87.2 km ENE of epicenter) [Map] / not felt (reported through our app)
Ponce, Segundo Barrio (33.6 km E of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Trujillo Alto (108.7 km ENE of epicenter) [Map] / Moderate shaking (MMI V)
La Parguera, Lajas (9.6 km WNW of epicenter) [Map] / Strong shaking (MMI VI) : Very loud noise. (reported through our app)  
Orocovis (62.3 km ENE of epicenter) [Map] / Strong shaking (MMI VI) (reported through our app)
Ponce, Segundo Barrio (31.4 km E of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Ponce, pr (41 km ENE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Guayanilla (18.6 km ENE of epicenter) [Map] / Moderate shaking (MMI V)
Aguada, Puerto Rico (59.1 km NNW of epicenter) [Map] / Light shaking (MMI IV) : felt bed shaking sideways  
Mayaguez, Mayagüez Barrio-Pueblo (36.6 km NW of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
San Sebastian (44 km N of epicenter) [Map] / Light shaking (MMI IV) : Movimiento suave (reported through our app)  
Playita Cortada, Descalabrado Barrio, Santa Isabel (53.8 km E of epicenter) [Map] / Very weak shaking (MMI II)
Sabana Grande (14.8 km N of epicenter) [Map] / Light shaking (MMI IV)
Palomas, Susúa Baja Barrio, Yauco (12.2 km NE of epicenter) [Map] / Strong shaking (MMI VI) (reported through our app)
Bayamon, Cidra (92.4 km ENE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Utuado in the mountains (42 km NE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Juana Diaz (47 km ENE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Hatillo (48.5 km NNE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
I couldn't set the marker on the map / Weak shaking (MMI III) : I was at Río Piedras very near the UPR University of PR and felt a weak shaking while doing some computer work (I was seated without moving).  
Ciales/Utuado / Light shaking (MMI IV)
Añasco / Light shaking (MMI IV)
Ciales/Utuado / Light shaking (MMI IV)
Juana Diaz / Very weak shaking (MMI II) : Felt a wobble for 3 seconds then another weaker wobble 1 second after feeling the first wobble.  
Frailes Yauco / Light shaking (MMI IV) : Floor strongly vibrsting  
Cabo Rojo / Moderate shaking (MMI V)
Ciales/Utuado / Light shaking (MMI IV)
Puerto Real PR / Light shaking (MMI IV) : Enough to wake you  
Aguada / Moderate shaking (MMI V)
Yauco / Strong shaking (MMI VI) : Strongest since january 7th 2020. Long duration. Second one less than 2 minutes after.  
San German / Moderate shaking (MMI V)
Aibonito / Moderate shaking (MMI V)
Añasco / Light shaking (MMI IV)
BAYAMON / Moderate shaking (MMI V) : Estaba durmiendo y sentí se movió la cama .  
San Juan / Weak shaking (MMI III)
Utuado (Puerto Rico, 43 km NE of epicenter) : Less strong than the first one. (reported through EMSC)  
San Sebastián (Puerto Rico, 43 km NW of epicenter) : Very short quake, not one that was felt much in San Sebastián. Foreshocks? (reported through EMSC)  
Coto Laurel (Puerto Rico, 43 km E of epicenter) : Se sintió fuerte pero no hubo daños. (reported through EMSC)  
Ponce (Puerto Rico, 34 km E of epicenter) : Se sintio bien fuerte el primero yel segundo menos (reported through EMSC)  
Las Piedras (Puerto Rico, 117 km E of epicenter) : Se sintio en Las Piedras (reported through EMSC)  
San Juan (Puerto Rico, 105 km NE of epicenter) : It woke me up!! (reported through EMSC)  
Cataño (Puerto Rico, 103 km NE of epicenter) : Rapido y leve (reported through EMSC)  
Caguas (Puerto Rico, 99 km E of epicenter) : Lo escuche porque el portón pego a sonar! (reported through EMSC)  
Caguas (Puerto Rico, 99 km E of epicenter) : caguas (reported through EMSC)  
Guaynabo (Puerto Rico, 99 km NE of epicenter) : San Juan, uno detrás de otro (reported through EMSC)  
Sabana Seca (Puerto Rico, 96 km NE of epicenter) : Lo sentimos acá en Toa Baja bastante movido (reported through EMSC)  
Cidra (Puerto Rico, 86 km E of epicenter) : Fuerte en Yauco (reported through EMSC)  
Orocovis (Puerto Rico, 66 km NE of epicenter) : Orocovis fuertecito (reported through EMSC)  
Camuy (Puerto Rico, 60 km N of epicenter) : Sentido/ detector emitió sonido. (reported through EMSC)  
Bajadero (Puerto Rico, 59 km NE of epicenter) : Se estremeció mucho (reported through EMSC)  
Rincón (Puerto Rico, 54 km NW of epicenter) : Fuerte en Rincón (reported through EMSC)  
Luyando (Puerto Rico, 51 km NW of epicenter) : Este fue bien leve en Aguada (reported through EMSC)  
Quebrada (Puerto Rico, 46 km N of epicenter) : In estruendo fuerte. Pasó rápido.. (reported through EMSC)  
Quebrada (Puerto Rico, 46 km N of epicenter) : Bayaney Hatillo, fuerte (reported through EMSC)  
La Playa (Puerto Rico, 46 km NW of epicenter) : Bed shook. (reported through EMSC)  
(Puerto Rico, 44 km NE of epicenter) : I was asleep in bed and woke up to the bed shaking. Once at 2:45am and again at 2:47am. I’m visiting and never have experienced an earthquake before. Wild! (reported through EMSC)  
San Sebastián (Puerto Rico, 43 km NW of epicenter) : Sentido fuertecito en San Sebastian. (reported through EMSC)  
(Puerto Rico, 42 km NW of epicenter) : Family members in Añasco woken up from sleep and think it was a 4.5. They felt a second one less severe (reported through EMSC)  
Mayagüez (Puerto Rico, 35 km NW of epicenter) : Fuerte tres jamaqueo . (reported through EMSC)  
Mayagüez (Puerto Rico, 35 km NW of epicenter) : Se remenio todo (reported through EMSC)  
Ponce (Puerto Rico, 34 km E of epicenter) : I felt thi one it also shook hatd (reported through EMSC)  
Marueño (Puerto Rico, 32 km E of epicenter) : sentido simultáneamente esto es terrible delicias ponce (reported through EMSC)  
Hormigueros (Puerto Rico, 29 km NW of epicenter) : Sentido fuerte. (reported through EMSC)  
Pole Ojea (Puerto Rico, 26 km W of epicenter) : Bien duro en combate Cabo Rojo (reported through EMSC)  
San Germán (Puerto Rico, 18 km NW of epicenter) : Se sintio fuerte en San German (reported through EMSC)  
Sabana Grande (Puerto Rico, 14 km NW of epicenter) : Cualquiera se desvela. (reported through EMSC)  
Sabana Grande (Puerto Rico, 14 km NW of epicenter) : El segundo y ha seguido yo tengo quake alarm (reported through EMSC)  
Sabana Grande (Puerto Rico, 14 km NW of epicenter) : Sentido Sabana Grande (reported through EMSC)  
Sabana Grande (Puerto Rico, 14 km NW of epicenter) : Sabana Grande ruido (reported through EMSC)  
Yauco (Puerto Rico, 13 km NE of epicenter) : También lo sentí, yauco barrio Barinas (reported through EMSC)  
Yauco (Puerto Rico, 13 km NE of epicenter) : Sentido fuerte pero mas corto q el anterior. (reported through EMSC)  
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