Moderate magnitude 4.0 earthquake at 3 km depth29 Aug 19:28 UTC: First to report: INETER after 4 minutes.29 Aug 19:35: Magnitude recalculated from 4.1 to 4.0. Hypocenter depth recalculated from 1.00 to 3.00 km (from 0.6 to 1.9 mi). Epicenter location corrected by 3.1 km (1.9 mi) towards ENE.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 29, 2025 19:24:26 UTC - Local time at epicenterFriday, Aug 29, 2025, at 01:24 pm (GMT -6)Statuspreliminary (automatic detection)Magnitude4.0Depth3 kmEpicenter latitude / longitude8.651°N / 83.323°WCosta RicaAlso near: Panama 46 km (29 mi) awaySeismic antipode8.651°S / 96.677°EShaking intensityV Moderate shaking near epicenterFelt0 reportsPrimary data sourceINETERNearest volcanoTisingal (76 km / 47 mi)Weather at epicenter at time of quakeOvercast Clouds 28°C (82 F), humidity: 86%, wind: 1 m/s (3 kts) from SWEstimated 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 energy12 minutes agoAug 29, 2025 19:24 GMT / Aug 29, 2025 01:24 pm (GMT -6)Lat / Lng: 8.651 / -83.323: 31 km Al Noreste De Playa Madrigal, Costa RicaSource: INETERDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22114115',8.65100,-83.32300,'12 minutes ago: Mag. 4.0, 31 km Al Noreste De Playa Madrigal, Costa Rica',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]Most recent quakes Top 20 past 24 hrs Quakes in Costa RicaNearby placesThe closest larger town where the quake might have been felt is San Isidro, a town with 35,000 inhabitants in Costa Rica, in 90 km (56 mi) distance northwest 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 Costa Rica, San Jose, 165 km (103 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(*)RegionCountry24 km (15 mi)E of epicenterGolfito(pop: 6,780)III: WeakProvincia de PuntarenasCosta Rica41 km (26 mi)NW of epicenterPuerto Cortes(pop: 3,850)III: WeakOsa, Provincia de PuntarenasCosta Rica41 km (26 mi)E of epicenterCorredor(pop: 7,080)III: WeakProvincia de PuntarenasCosta Rica43 km (27 mi)NE of epicenterSan Vito(pop: 3,980)III: WeakCoto Brus, Provincia de PuntarenasCosta Rica49 km (30 mi)E of epicenterAlto Quiel(pop: 576)III: WeakDistrito de Renacimiento, Provincia de ChiriquiPanama54 km (34 mi)E of epicenterRio Sereno(pop: 1,370)III: WeakDistrito de Renacimiento, Provincia de ChiriquiPanama55 km (34 mi)E of epicenterCanoas(pop: 4,570)III: WeakCorredores, Provincia de PuntarenasCosta Rica56 km (35 mi)SE of epicenterCabecera de San Bartolo(pop: 58)III: WeakDistrito de Baru, Provincia de ChiriquiPanama58 km (36 mi)E of epicenterDominical(pop: 439)III: WeakDistrito de Renacimiento, Provincia de ChiriquiPanama58 km (36 mi)SE of epicenterFinca Blanco(pop: 1,060)III: WeakDistrito de Baru, Provincia de ChiriquiPanama58 km (36 mi)N of epicenterBuenos Aires(pop: 11,700)III: WeakProvincia de PuntarenasCosta Rica65 km (40 mi)E of epicenterGomez(pop: 1,260)II: Very weakDistrito de Bugaba, Provincia de ChiriquiPanama65 km (40 mi)NE of epicenterPiedra Candela(pop: 648)II: Very weakDistrito de Renacimiento, Provincia de ChiriquiPanama66 km (41 mi)SE of epicenterPuerto Armuelles(pop: 11,700)II: Very weakDistrito de Baru, Provincia de ChiriquiPanama68 km (42 mi)E of epicenterQuebrada Llana(pop: 125)II: Very weakDistrito de Bugaba, Provincia de ChiriquiPanama71 km (44 mi)SE of epicenterMajagual(pop: 521)II: Very weakDistrito de Baru, Provincia de ChiriquiPanama72 km (45 mi)E of epicenterDivala(pop: 2,510)II: Very weakDistrito de Alanje, Provincia de ChiriquiPanama75 km (46 mi)NW of epicenterMercedes(pop: 5,470)II: Very weakPerez Zeledon, Provincia de San JoseCosta Rica77 km (48 mi)E of epicenterVolcan(pop: 10,300)II: Very weakTierras Altas, Provincia de ChiriquiPanama78 km (49 mi)E of epicenterLa Concepcion(pop: 17,700)II: Very weakDistrito de Bugaba, Provincia de ChiriquiPanama78 km (49 mi)E of epicenterLa Planta(pop: 71)II: Very weakProvincia de ChiriquiPanama83 km (51 mi)SE of epicenterCanta Gallo(pop: 448)II: Very weakDistrito de Alanje, Provincia de ChiriquiPanama84 km (52 mi)E of epicenterLas Nubes(pop: 484)II: Very weakProvincia de ChiriquiPanama85 km (53 mi)SE of epicenterBurica(pop: 1,360)II: Very weakDistrito de Baru, Provincia de ChiriquiPanama85 km (53 mi)NW of epicenterDaniel Flores(pop: 10,000)II: Very weakPerez Zeledon, Provincia de San JoseCosta Rica90 km (56 mi)NW of epicenterSan Isidro(pop: 34,900)II: Very weakPerez Zeledon, Provincia de San JoseCosta Rica165 km (103 mi)NW of epicenterSan Jose(pop: 335,000)II: Very weakSan Jose, Provincia de San JoseCosta RicaNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quakeThere are no user reports for this quake yet.If you felt it, be the first to report it!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 GMT2025-08-29EpicenterAgency4.03 km1.9 mi19:24:2631 Km al noreste de Playa Madrigal, Costa RicaINETERAftershocks 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)Aug 29, 2025 01:24 pm (GMT -6)12 minutes ago4.03 km0 km - This quake31 km Al Noreste De Playa Madrigal, Costa RicaMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 25 years and our earthquake archive back to 1900, there are about 850 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.02 quakes per year (or 1 quake every 41.7 years)Mag. 6 or higher: 0.23 quakes per year (or 1 quake every 4.3 years)Mag. 5 or higher: 2.8 quakes per yearMag. 4 or higher: 61 quakes per year (or 5.1 quakes per month)Mag. 3 or higher: 506 quakes per year (or 42 quakes per month)Mag. 2 or higher: 832 quakes per year (or 69 quakes per month)Mag. 1 or higher: 849 quakes per year (or 71 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 3 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 40 to 45 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 13 days after a magnitude 4.0 earthquake had hit on Saturday, Aug 16, 2025, at 08:47 am local time (America/Panama GMT -5) in 85 km (53 mi) distance to the northeast:Mag. 4.0 earthquake Panama-Costa Rica Border Region - Aug 16, 2025 - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 6.2. It had occurred 6 years earlier, on Wednesday, Jun 26, 2019, at 12:23 am local time (America/Panama GMT -5) in Provincia de Chiriqui, Panama:Mag. 6.2 earthquake Panama-Costa Rica Border Region - Jun 26, 2019 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 7.6. It had occurred 13 years ago earlier, on Wednesday, Sep 5, 2012, at 08:42 am local time (America/Costa Rica GMT -6) in Provincia de Guanacaste, Costa Rica:Mag. 7.6 earthquake 11 km ENE of Hojancha - Costa Rica - Sep 5, 2012 - 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 TimeMagDepthDistanceLocationDetailsMapAug 16, 08:47 am (Panama)4.010 km85 km (53 mi) to the NE Panama-Costa Rica Border Region 1 reportInfoJul 20, 05:30 pm (GMT -6)4.122 km85 km (53 mi) to the SE South of Panama 1 reportInfoJul 6, 10:06 pm (Costa Rica)5.39 km5.4 km (3.4 mi) to the SW 10 km Al Norte De Pto Jimenez, Puntarenas.InfoJun 24, 11:18 am (Panama)4.023 km85 km (53 mi) to the SENorth Pacific Ocean, 30 km southwest of David, Provincia de Chiriqui, Panama 3 reportsInfoJun 6, 10:06 pm (Costa Rica)4.821 km10.5 km (6.5 mi) to the N 79 km southeast of San Isidro, Provincia de San Jose, Costa Rica 21 reportsInfoJun 4, 06:10 pm (Costa Rica)4.75 km51 km (32 mi) to the NW 42 km Al Sureste De Dominical, Costa Rica 2 reportsInfoJun 2, 03:09 pm (GMT -6)4.22 km87 km (54 mi) to the W 49 km Al Suroeste De Dominical, Costa RicaInfoJul 22, 2024 02:19 pm (Panama)5.77 km74 km (46 mi) to the SENorth Pacific Ocean, 47 km southwest of David, Provincia de Chiriqui, Panama 116 reportsInfoJan 29, 2021 07:14 am (Costa Rica)5.73 km74 km (46 mi) to the SE 13 Km Al Oeste De Limones, Distrito Barú, Panamá, Costa Rica 10 reportsInfoJun 26, 2019 12:23 am (Panama)6.234 km71 km (44 mi) to the E 4.2 km west of Siogui Abajo, Provincia de Chiriqui, Panama 595 reportsInfoMay 12, 2019 02:24 pm (Panama)6.022 km60 km (37 mi) to the E Panama-Costa Rica Border Region 198 reportsInfoAug 17, 2018 05:22 pm (Costa Rica)6.010 km13 km (8.3 mi) to the E Costa Rica 185 reportsInfoSep 5, 2012 08:42 am (Costa Rica)7.635 km271 km (168 mi) to the NW 11 km ENE of Hojancha, Costa Rica 6 reportsInfoMar 11, 2009 03:03 pm (Costa Rica)5.917 km22 km (14 mi) to the SENorth Pacific Ocean, 16 km southwest of Golfito, Costa RicaInfoMar 11, 2009 11:24 am (Costa Rica)5.914 km20 km (12 mi) to the SE Costa RicaInfoNov 19, 2008 12:11 am (Costa Rica)6.332 km58 km (36 mi) to the SE Panama-Costa Rica border regionInfoMay 1, 2006 02:47 am (Panama)5.913 km73 km (45 mi) to the SE 58 km southwest of David, Provincia de Chiriqui, PanamaInfoJun 30, 2005 03:26 pm (Costa Rica)5.938 km54 km (34 mi) to the SE 3 km W of Progreso, PanamaInfoFeb 4, 2004 06:59 am (Panama)6.129 km59 km (37 mi) to the SE 50 km west of David, Provincia de Chiriqui, PanamaInfoDec 25, 2003 02:11 am (Panama)6.533 km61 km (38 mi) to the SE 3 km SSE of Progreso, PanamaInfoAug 2, 2002 09:39 pm (Panama)5.810 km70 km (43 mi) to the SENorth Pacific Ocean, 47 km southwest of David, Provincia de Chiriqui, PanamaInfoJun 15, 2002 08:46 pm (Costa Rica)6.435 km75 km (47 mi) to the WNorth Pacific Ocean, 72 km southwest of San Isidro, Costa RicaInfoFeb 20, 2000 02:27 am (Costa Rica)5.720 km91 km (57 mi) to the WNorth Pacific Ocean, 74 km southwest of San Isidro, Costa RicaInfoAug 21, 1999 04:49 am (GMT -6)5.824 km74 km (46 mi) to the NWNorth Pacific Ocean, 57 km southwest of San Isidro, Costa RicaInfoAug 20, 1999 04:02 am (Costa Rica)6.920 km102 km (63 mi) to the NWNorth Pacific Ocean, 99 km south of San Jose, Provincia de San Jose, Costa RicaInfoApr 22, 1991 03:56 pm (Costa Rica)7.610 km118 km (73 mi) to the N 34 km S of Limón, Costa RicaInfoApr 27, 1990 07:23 pm (Costa Rica)6.423 km33 km (20 mi) to the NWProvincia de Puntarenas, 58 km southeast of San Isidro, Costa RicaInfoMar 25, 1990 07:22 am (Costa Rica)7.322 km216 km (134 mi) to the NWNorth Pacific Ocean, 7.2 km southeast of Puntarenas, Costa RicaInfoMar 10, 1988 09:44 pm (Costa Rica)6.023 km63 km (39 mi) to the NE 31 km N of San Vito, Costa RicaInfoMar 21, 1987 06:08 am (Costa Rica)5.824 km20 km (13 mi) to the NW Costa RicaInfoOct 11, 1983 10:39 pm (Panama)5.720 km92 km (57 mi) to the SE Panama-Costa Rica border regionInfoMay 9, 1983 09:53 am (Costa Rica)6.139 km62 km (38 mi) to the SE 11 km WSW of Puerto Armuelles, PanamaInfoApr 2, 1983 08:50 pm (Costa Rica)7.137 km23 km (14 mi) to the E 13 km north of Golfito, Provincia de Puntarenas, Costa RicaInfoAug 23, 1979 10:26 pm (Costa Rica)6.440 km38 km (23 mi) to the NWProvincia de Puntarenas, 52 km southeast of San Isidro, Costa RicaInfoJul 1, 1979 03:38 pm (Panama)6.528 km56 km (35 mi) to the SE 58 km west of David, Provincia de Chiriqui, PanamaInfoAug 22, 1978 06:38 pm (Costa Rica)7.056 km271 km (168 mi) to the NW 29 km southwest of Canas, Provincia de Guanacaste, Costa RicaInfoJul 26, 1962 02:14 am (GMT -6)7.125 km143 km (89 mi) to the SE south of PanamaInfoMar 12, 1962 06:40 am (Panama)6.525 km99 km (61 mi) to the SENorth Pacific Ocean, 71 km southwest of David, Provincia de Chiriqui, PanamaInfoOct 5, 1950 04:09 pm (Universal Time)7.598 km278 km (173 mi) to the NW 8 km northeast of Canas, Provincia de Guanacaste, Costa RicaInfoJun 3, 1945 01:05 pm (Universal Time)6.434 km78 km (48 mi) to the SE 27 km west of David, Provincia de Chiriqui, PanamaInfoDec 5, 1941 08:47 pm (Universal Time)7.420 km54 km (34 mi) to the SWNorth Pacific Ocean, 71 km southwest of Golfito, Costa RicaInfoDec 21, 1939 08:54 pm (Universal Time)7.525 km191 km (119 mi) to the NWProvincia de Alajuela, 37 km west of San Jose, Provincia de San Jose, Costa RicaInfoJul 18, 1934 04:00 am (Universal Time)6.620 km91 km (56 mi) to the SENorth Pacific Ocean, 72 km southwest of David, Provincia de Chiriqui, PanamaInfoJul 18, 1934 01:36 am (Universal Time)7.530 km126 km (78 mi) to the SE south of PanamaInfoDec 20, 1904 12:44 am (Panama)7.20 km84 km (52 mi) to the NE 40 km southwest of Changuinola, Provincia de Bocas del Toro, PanamaInfoJun 21, 1900 02:52 pm (Costa Rica)7.50 km282 km (175 mi) to the NW Costa RicaInfoMap 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]