Moderate magnitude 4.0 earthquake at 12 km depth7 Oct 02:10 UTC: First to report: USGS after 10 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeOct 7, 2025 02:01:19 UTC - Local time at epicenterMonday, Oct 6, 2025, at 10:01 pm (America/Puerto Rico GMT -4)Statusconfirmed (manually revised)Magnitude4.0Depth11.8 kmEpicenter latitude / longitude17.7793°N / 66.8302°WPuerto RicoSeismic antipode17.7793°S / 113.1698°EQuality23 seismic stationsShaking intensityIV Light shaking near epicenterFelt1 reportPrimary data sourceUSGS (United States Geological Survey)Weather at epicenter at time of quakeOvercast Clouds 25.9°C (79 F), humidity: 81%, wind: 3 m/s (5 kts) from NEEstimated seismic energy released6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | equivalent to ONE quake of magnitude 4.0 | about seismic energy39 minutes ago reported feltOct 7, 2025 02:01 GMT / Oct 6, 2025 10:01 pm (Puerto Rico time)Lat / Lng: 17.7793 / -66.8302: 22 km SSE of Guánica, Puerto RicoSource: USGSOther sources: IRIS: 4.0 / 12 km, EMSC: 4.0 / 12 kmDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-22247990',17.77930,-66.83020,'39 minutes ago: Mag. 4.0, 22 km SSE of Guánica, Puerto Rico',html,'quakes-6-24.png',25,25,12,12,125]); function mkRep(id,notFelt){var nFelt=notFelt||false;var src="https://www.volcanoesandearthquakes.com/app/earthquake-report.php?quakeId="+id;if(nFelt==true){src+="¬Felt=true";}window.open(src,"","status=0,toolbar=0,location=0,directories=0,menubar=0,resizable=1,scrollbars=1,height=400,width=350");} function locationHashChanged(e){-1!=e.oldURL.indexOf("#popupMap")&&closePopup()} window.onhashchange = locationHashChanged; function comment(e){var t=e.parentNode,a=(t.dataset.id,document.getElementById("commentForm"));"none"==a.style.display?(t.appendChild(a),a.style.display="block"):a.style.display="none"}function sendComment(e){var t=e.parentNode,a=t.parentNode.dataset.id,n=document.getElementById("commentContent"),p=n.value.trim();if(p){var o="id="+a+"&quakeId="+thisQuakeId;o+="&comment="+decodeURIComponent(p),mkRequest("//reports.volcanodiscovery.com/app/eqReportComment.php","post",o,function(e){e.responseText;alert("Thank you for submitting your comment!"),t.style.display="none",n.value=""})}}function flagReport(e){var t=e.parentNode.dataset.id;if(confirm("Report this as inappropriate?")){var a="id="+t+"&quakeId="+thisQuakeId+"&flagAsInappropriate=1";mkRequest("//reports.volcanodiscovery.com/app/eqReportComment.php","post",a,function(t){var a=t.responseText;alert(a),e.style.display="none"})}}function likeReport(e){var t="id="+e.parentNode.dataset.id+"&quakeId="+thisQuakeId+"&like=1";mkRequest("//reports.volcanodiscovery.com/app/eqReportComment.php","post",t,function(t){t.responseText;e.style.opacity=.5})}]]>[smaller] [bigger]Quake possibly felt by 710,000 peopleAccording to preliminary estimates from the US Geological Survey (USGS), the quake might have been felt by over 710,000 people across 3 countries: Puerto Rico (3.1 million), Dominican Republic (120,000), and the United States Virgin Islands (32,700). For most people (nearly 100%), the quake might only have felt as barely noticeable or weak shaking if at all (intensities I-III).MMI LevelShaking (3,208,200 in total)Possible damageI Not felt2,493,200(77.71%)NoneII Very weak715,100(22.29%)NoneIII WeakProbably noneIV LightNone or minor onlyV ModerateMinorVI StrongMinor to ModerateVII Very strongModerateVIII SevereSignificantIX ViolentHeavyX ExtremeCatastrophicEstimated number of people exposed to shaking from the earthquake by intensity (data coverage corresponding to attached map)Map of expected ground shaking intensity according to the MMI scale (shakemap, source: USGS)Map with population density (from white to black) in the area around the quake's epicenter (source: USGS)Alert level for this earthquake: Level GREENBased on seismic and statistical models, USGS estimates that the risk of fatalities and damage from this earthquake is low. The main factors that contribute to this evaluation are:The maximum expected ground shaking from this quake was unlikely to reach dangerous levels over populated areas; it should not have surpassed intensity III (Weak) on the MMI scale significantly.The quake appears to have occurred far from densely populated areas (far as in relation to its magnitude).CommentOverall, the population in this region resides in structures that are a mix of vulnerable and earthquake resistant construction. The predominant vulnerable building types are mud wall and informal (metal, timber, GI etc.) construction.A magnitude 6.7 earthquake 282 km west of this event struck this region on June 24, 1984 (UTC), with estimated population exposures of 2,981,000 at intensity VI and 326,000 at intensity VII, resulting in a reported 5 fatalities.Source: USGSGreen alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.Expected fatalitiesThe risk of fatalities from this quake is considered low and classified as Level GREEN, the lowest on a color scale from Green (low) to Red (very high). USGS estimates that there is a 65.3% chance that there are no direct fatalities as effect of shaking and a 30.2% chance that between 1 and 10 fatalities occurred. The likelihood that there are more than 100 fatalities is less than 1%.Expected economic damageThe economic impact of this earthquake is expected to be minimal or small (Level GREEN). Only light damage if any should have occurred. USGS calculates an 65.3% chance of total economic loss in the range of 0-1 million US Dollars and a 30.2% risk of losses between 1 and 10 million US Dollars. Total economic loss from this quake is not likely to surpass 10 million US Dollars (less than 1% chance). Ground shaking from this quakeMap of estimated ground shaking (source:USGS)Most recent quakes Top 20 past 24 hrs Quakes in Puerto RicoNearby placesThe closest larger town where the quake might have been felt is Bayamon, a city with more than 200,000 inhabitants in Puerto Rico, in 99 km (62 mi) distance northeast of the epicenter. People likely experienced very weak shaking there. Many smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of Puerto Rico, San Juan, 108 km (67 mi) away from the epicenter, the earthquake was probably felt as very weak shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry23 km (14 mi)N of epicenterMaria Antonia(pop: 1,480)III: WeakCarenero Barrio, Guanica Municipio Puerto Rico23 km (14 mi)N of epicenterGuanica(pop: 9,220)III: WeakGuanica Barrio-Pueblo, Guanica Municipio Puerto Rico27 km (17 mi)N of epicenterGuayanilla(pop: 5,210)III: WeakGuayanilla Municipio Puerto Rico29 km (18 mi)N of epicenterYauco(pop: 20,300)III: WeakYauco Municipio Puerto Rico32 km (20 mi)NW of epicenterLa Parguera(pop: 1,140)III: WeakParguera Barrio, Lajas Municipio Puerto Rico34 km (21 mi)NE of epicenterPonce(pop: 137,500)III: WeakSegundo Barrio, Ponce Municipio Puerto Rico42 km (26 mi)NE of epicenterPotala Pastillo(pop: 3,820)III: WeakCapitanejo Barrio, Juana Diaz Municipio Puerto Rico43 km (27 mi)NW of epicenterSabana Eneas(pop: 1,850)III: WeakMaresua Barrio, San German Municipio Puerto Rico43 km (27 mi)NW of epicenterPole Ojea(pop: 1,830)III: WeakLlanos Costa Barrio, Cabo Rojo Municipio Puerto Rico48 km (30 mi)NE of epicenterGuayabal(pop: 2,380)III: WeakJuana Diaz Municipio Puerto Rico50 km (31 mi)NW of epicenterPuerto Real(pop: 6,170)III: WeakMiradero Barrio, Cabo Rojo Municipio Puerto Rico53 km (33 mi)NE of epicenterJauca(pop: 1,840)III: WeakSanta Isabel Municipio Puerto Rico54 km (34 mi)NE of epicenterLos Llanos(pop: 2,300)III: WeakCoamo Municipio Puerto Rico58 km (36 mi)N of epicenterCayuco(pop: 1,280)III: WeakCaguana Barrio, Utuado Municipio Puerto Rico60 km (37 mi)N of epicenterJuncal(pop: 1,160)II: Very weakSan Sebastian Municipio Puerto Rico63 km (39 mi)NW of epicenterEspino(pop: 1,420)II: Very weakAnasco Puerto Rico66 km (41 mi)NE of epicenterCoco(pop: 5,800)II: Very weakLapa Barrio, Salinas Municipio Puerto Rico71 km (44 mi)NE of epicenterPastos(pop: 1,530)II: Very weakPasto Barrio, Aibonito Puerto Rico72 km (45 mi)N of epicenterRafael Gonzalez(pop: 2,330)II: Very weakCampo Alegre Barrio, Hatillo Municipio Puerto Rico73 km (45 mi)E of epicenterJobos(pop: 3,480)II: Very weakGuayama Municipio Puerto Rico74 km (46 mi)NW of epicenterLuyando(pop: 3,550)II: Very weakNaranjo Barrio, Aguada Puerto Rico74 km (46 mi)N of epicenterBajadero(pop: 3,880)II: Very weakDomingo Ruiz Barrio, Arecibo Puerto Rico74 km (46 mi)N of epicenterCacao(pop: 2,070)II: Very weakSan Antonio Barrio, Quebradillas Municipio Puerto Rico75 km (46 mi)NW of epicenterStella(pop: 1,290)II: Very weakPueblo Barrio, Rincon Municipio Puerto Rico75 km (47 mi)NE of epicenterFranquez(pop: 2,020)II: Very weakFranquez Barrio, Morovis Municipio Puerto Rico79 km (49 mi)N of epicenterMora(pop: 1,860)II: Very weakGuerrero Barrio, Municipio de Isabela Puerto Rico80 km (50 mi)NE of epicenterComerio(pop: 4,650)II: Very weakComerio Barrio-Pueblo, Comerio Municipio Puerto Rico80 km (50 mi)NE of epicenterManati(pop: 16,100)II: Very weakManati Barrio-Pueblo, Manati Municipio Puerto Rico81 km (50 mi)N of epicenterBarceloneta(pop: 22,300)II: Very weakFlorida Afuera Barrio, Barceloneta Puerto Rico83 km (51 mi)NE of epicenterCorozal(pop: 11,300)II: Very weakCorozal Municipio Puerto Rico87 km (54 mi)NE of epicenterVega Baja(pop: 29,300)II: Very weakVega Baja Municipio Puerto Rico88 km (55 mi)NE of epicenterVega Alta(pop: 12,000)II: Very weakVega Alta Municipio Puerto Rico93 km (58 mi)NE of epicenterAguas Buenas(pop: 4,580)II: Very weakAguas Buenas Puerto Rico96 km (59 mi)NE of epicenterCandelaria(pop: 17,600)II: Very weakToa Baja Municipio Puerto Rico96 km (60 mi)NE of epicenterDorado(pop: 13,100)II: Very weakHiguillar Barrio, Dorado Municipio Puerto Rico99 km (62 mi)NE of epicenterBayamon(pop: 203,500)II: Very weakBayamon Barrio-Pueblo, Bayamon Municipio Puerto Rico100 km (62 mi)NE of epicenterGuaynabo(pop: 81,400)II: Very weakGuaynabo Municipio Puerto Rico101 km (63 mi)NE of epicenterLevittown(pop: 29,800)II: Very weakSabana Seca Barrio, Toa Baja Municipio Puerto Rico105 km (65 mi)NE of epicenterCatano(pop: 28,100)II: Very weakCatano Barrio-Pueblo, Catano Municipio Puerto Rico108 km (67 mi)NE of epicenterSan Juan(pop: 418,100)II: Very weakSan Juan Puerto RicoNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quake (1)So far, we have received 1 report for this quake. This section is being updated as new data comes in.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.Translate48.4 km NW of epicenter [Map] / Very weak shaking (MMI II) / single vertical bump / very shortWhat is Intensity and the Mercalli Intensity Scale?The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,...IX, X, and often displayed with color codes ranging from light blue to dark red.Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.Read more about the MMI scale!Number of reports by intensityShaking intensityNumber of reportsMin-Max distance from epicenter (*)Average distance (*)II: Very weak shaking148–48 km (30–30 mi)48 km (30 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (1 in total) could be used for geographic statistics.I didn't feel itI felt this quakeIf you were near the epicenter and felt it, please share your experience and submit a short "I felt it" report! Other users would love to hear about it!If you did NOT feel the quake although you were in the area, please report it as well! Your contribution is valuable to earthquake science and seismic hazard analysis.Compare Quake DataData for the same earthquake as reported by different agenciesThe 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.MagDepthTime GMT2025-10-7EpicenterAgency4.0± 0.2112 km7.3 mi±6.4 km02:01:19.4322 km SSE of Guánica, Puerto RicoEpicenter uncertainty: ± 2.4 kmUSGS (United States Geological Survey)4.012 km7.3 mi02:01:19PUERTO RICO REGION0 km (0 mi) epicenter difference with USGSIRIS (Incorporated Research Institutions for Seismology)4.0± 0.2112 km7.3 mi02:01:19.43±1.19sPUERTO RICO REGION0 km (0 mi) epicenter difference with USGSEpicenter uncertainty: ± 9.8 kmEMSC (European-Mediterranean Seismological Centre)Aftershocks for this quakeNo aftershocks have been recorded so far. When aftershocks are detected, we will update this section.What are aftershocks?Larger earthquakes (above magnitude 5 or so) such as this one are usually followed by smaller ones known as aftershocks that occur in the same area during the days, weeks, months or even years after the main shock.[More info]What about this quake?Based on its magnitude, the fault that was active during the quake likely ruptured beneath a surface area of approximately 1 km2 (0 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 2 km (1 mi).[More info]Recorded aftershocks, latest first (0 quake)Oct 6, 2025 10:01 pm (Puerto Rico)39 minutes ago4.012 km0 km - This quakeCaribbean Sea, 34 km SW of Ponce, Ponce Municipio, Puerto RicoMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 55 years and our earthquake archive back to 1900, there are about 4,100 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)Mag. 5 or higher: 0.39 quakes per year (or 1 quake every 2.6 years)Mag. 4 or higher: 18.7 quakes per yearMag. 3 or higher: 373 quakes per year (or 31.1 quakes per month)Mag. 2 or higher: 3,100 quakes per year (or 8.5 quakes per day)Mag. 1 or higher: 4,100 quakes per year (or 11.2 quakes per day)The area where this quake occurred has a high level of seismic activity. It has had at least 4 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 30 to 35 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 29 weeks after a magnitude 4.4 earthquake had hit on Thursday, Mar 20, 2025, at 05:06 am local time (America/Puerto Rico GMT -4) in 24 km (15 mi) distance to the north:Mag. 4.4 earthquake Guayanilla Municipio - Ponce Municipio, Puerto Rico - Mar 20, 2025 - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 6.3. It had occurred 6 years earlier, on Tuesday, Jan 7, 2020, at 04:24 am local time (America/Puerto Rico GMT -4) in Caribbean Sea, Puerto Rico:Mag. 6.3 earthquake Caribbean Sea - Ponce Municipio, Puerto Rico - Jan 7, 2020 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 7.7. It had occurred 79 years ago earlier, on Sunday, Aug 4, 1946, at 05:51 pm local time (Universal Time GMT +0) in North Atlantic Ocean, Dominican Republic:Mag. 7.7 earthquake North Atlantic Ocean - 43 km north of Hato Mayor del Rey, Dominican Republic - Aug 4, 1946 - Below is a list and map of larger or recent quakes that had occurred near the epicenter before this earthquake (within up to 100 km/61 mi distance, up to 300 km/183 mi for very large quakes above mag. 7). Filter and sort the list by magnitude or time.Max results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageDate and TimeMagDepthDistanceLocationDetailsMapMar 20, 05:06 am (Puerto Rico)4.413 km24 km (15 mi) to the NGuayanilla Municipio, 20 km west of Ponce, Ponce Municipio, Puerto Rico 17 reportsInfoJan 16, 2024 11:07 pm (Puerto Rico)4.410 km21 km (13 mi) to the NWCaribbean Sea, 38 km west of Ponce, Ponce Municipio, Puerto Rico 22 reportsInfoOct 23, 2023 08:58 am (Puerto Rico)4.410 km25 km (15 mi) to the NGuayanilla Municipio, 19 km west of Ponce, Ponce Municipio, Puerto Rico 20 reportsInfoOct 7, 2023 03:52 pm (Puerto Rico)4.08 km17 km (10.9 mi) to the NWCaribbean Sea, 32 km west of Ponce, Ponce Municipio, Puerto Rico 3 reportsInfoJul 3, 2023 08:44 am (Puerto Rico)4.17 km33 km (20 mi) to the NWCaribbean Sea, 29 km south of Mayagueez, Mayagueez Municipio, Puerto Rico 6 reportsInfoJul 3, 2020 04:49 pm (Puerto Rico)5.33 km23 km (14 mi) to the NWCaribbean Sea, 4.9 km southwest of Cayo Terremoto Island, Puerto Rico 232 reportsInfoMay 2, 2020 07:13 am (Puerto Rico)5.49 km21 km (13 mi) to the NECaribbean Sea, 4.1 km southeast of Cayo Maria Langa Island, Puerto Rico 404 reportsInfoJan 15, 2020 11:36 am (Puerto Rico)5.25 km25 km (15 mi) to the NWCaribbean Sea, 34 km southeast of Mayagueez, Mayagueez Municipio, Puerto Rico 352 reportsInfoJan 11, 2020 08:56 am (Puerto Rico)5.210 km6.3 km (3.9 mi) to the NECaribbean Sea, 27 km southwest of Ponce, Ponce Municipio, Puerto Rico 978 reportsInfoJan 11, 2020 08:54 am (Puerto Rico)5.95 km19 km (12 mi) to the N5 km SE of Maria Antonia, Puerto RicoInfoJan 10, 2020 06:26 pm (Puerto Rico)5.29 km18 km (11 mi) to the NCaribbean Sea, 29 km west of Ponce, Ponce Municipio, Puerto Rico 475 reportsInfoJan 7, 2020 07:18 am (Puerto Rico)5.69 km28 km (17 mi) to the N 0 km NW of Magas Arriba, Puerto Rico 234 reportsInfoJan 7, 2020 04:34 am (Puerto Rico)5.510 km25 km (15 mi) to the ECaribbean Sea, 29 km south of Ponce, Ponce Municipio, Puerto Rico 102 reportsInfoJan 7, 2020 04:24 am (Puerto Rico)6.310 km3.8 km (2.4 mi) to the NECaribbean Sea, 30 km southwest of Ponce, Ponce Municipio, Puerto Rico 1031 reportsInfoJan 6, 2020 06:32 am (Puerto Rico)5.86 km9.9 km (6.1 mi) to the NCaribbean Sea, 26 km southwest of Ponce, Ponce Municipio, Puerto Rico 442 reportsInfoDec 28, 2019 09:21 pm (Puerto Rico)4.73 km17 km (10.5 mi) to the N 24 km west of Ponce, Ponce Municipio, Puerto Rico 43 reportsInfoDec 28, 2019 09:06 pm (Puerto Rico)5.06 km12 km (7.6 mi) to the N 29 km southwest of Ponce, Ponce Municipio, Puerto Rico 214 reportsInfoDec 28, 2019 06:35 pm (Puerto Rico)4.76 km18 km (11 mi) to the N 5km SE of Guanica, Puerto Rico 96 reportsInfoMar 12, 2019 09:08 am (Puerto Rico)4.613 km71 km (44 mi) to the E 3 km SSW of Jobos, Puerto Rico 339 reportsInfoDec 17, 2011 02:09 am (Puerto Rico)5.117 km72 km (45 mi) to the NWCaribbean Sea, 25 km west of Mayagueez, Mayagueez Municipio, Puerto RicoInfoDec 17, 2011 02:06 am (Puerto Rico)5.214 km73 km (45 mi) to the NWCaribbean Sea, 24 km west of Mayagueez, Mayagueez Municipio, Puerto RicoInfoDec 24, 2010 07:43 pm (Puerto Rico)5.1103 km91 km (56 mi) to the NEAguas Buenas, 23 km south of San Juan, San Juan, Puerto RicoInfoMay 16, 2010 01:16 am (Puerto Rico)5.8113 km74 km (46 mi) to the N 4 km E of Moca, Puerto RicoInfoMay 30, 1987 01:55 pm (Puerto Rico)4.65 km38 km (23 mi) to the NW 5 km ESE of Pole Ojea, Puerto RicoInfoFeb 18, 1986 02:58 am (Universal Time)4.721 km41 km (25 mi) to the NECaribbean Sea, 19 km southeast of Ponce, Ponce Municipio, Puerto RicoInfoOct 2, 1984 11:13 am (Puerto Rico)4.818 km21 km (13 mi) to the ECaribbean Sea, 19 km south of Ponce, Ponce Municipio, Puerto RicoInfoNov 2, 1979 08:31 pm (GMT -4)5.19 km95 km (59 mi) to the W Mona PassageInfoJun 17, 1975 01:01 am (Puerto Rico)5.0111 km95 km (59 mi) to the NENorth Atlantic Ocean, 25 km west of San Juan, San Juan, Puerto RicoInfoOct 26, 1974 01:30 am (Puerto Rico)4.793 km90 km (56 mi) to the NEVega Alta Municipio, 23 km west of San Juan, San Juan, Puerto RicoInfoFeb 2, 1972 07:05 pm (Universal Time)4.794 km76 km (47 mi) to the N Puerto Rico RegionInfoMar 24, 1967 05:25 pm (Puerto Rico)4.835 km78 km (49 mi) to the NEManati Municipio, 38 km west of San Juan, San Juan, Puerto RicoInfoAug 2, 1961 11:08 pm (Puerto Rico)7.1133 km91 km (57 mi) to the NE Puerto Rico RegionInfoAug 4, 1946 05:51 pm (Universal Time)7.715 km283 km (176 mi) to the NWNorth Atlantic Ocean, 43 km north of Hato Mayor del Rey, Dominican RepublicInfoJul 29, 1943 03:02 am (Universal Time)7.715 km129 km (80 mi) to the NNorth Atlantic Ocean, 79 km north of Mayagueez, Mayagueez Municipio, Puerto RicoInfoNov 12, 1918 05:45 pm (GMT -4)7.00 km152 km (95 mi) to the WCaribbean Sea, 35 km west of Isla de Mona Island, Puerto RicoInfoOct 24, 1918 11:43 pm (Puerto Rico)6.40 km84 km (52 mi) to the NW Puerto RicoInfoOct 12, 1918 08:19 am (Universal Time)5.725 km92 km (57 mi) to the NNorth Atlantic Ocean, 36 km north of Puerto Rico Island, Puerto RicoInfoOct 11, 1918 05:03 pm (Universal Time)6.115 km96 km (60 mi) to the NW 15 km WNW of San Antonio, Puerto RicoInfoOct 11, 1918 02:14 pm (Universal Time)7.115 km109 km (68 mi) to the NNorth Atlantic Ocean, 56 km north of Mayagueez, Mayagueez Municipio, Puerto RicoInfoApr 24, 1916 12:26 am (GMT -4)7.20 km147 km (92 mi) to the NW Santo DominigoInfoMap of earlier quakes in the area of this quakeMax results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageOldest quakes are shown in yellow, most recent in red.[quakes -][quakes +][smaller][bigger]