Moderate magnitude 4.3 earthquake at 5 km depth18 Sep 22:02 UTC: First to report: IGEPN after 7 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeSep 18, 2025 21:55:20 UTC - Local time at epicenterThursday, Sep 18, 2025, at 04:55 pm (GMT -5)Statuspreliminary (automatic detection)Magnitude4.3Depth5 kmEpicenter latitude / longitude1.28°S / 81.13°WEcuadorSeismic antipode1.28°N / 98.87°EShaking intensityV Moderate shaking near epicenterFelt0 reportsPrimary data sourceIGEPN (Institute of Geophysics of the National Polytechnic School in Quito)Estimated seismic energy released1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) | equivalent to ONE quake of magnitude 4.3 | about seismic energy7 minutes agoSep 18, 2025 21:55 GMT / Sep 18, 2025 04:55 pm (GMT -5)Lat / Lng: -1.28 / -81.13: Off Coast of EcuadorSource: IGEPNDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22180954',-1.28000,-81.13000,'7 minutes ago: Mag. 4.3, Off Coast of Ecuador',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 EcuadorNearby placesThe closest larger town where the quake might have been felt is Portoviejo, a city with more than 320,000 inhabitants in Ecuador, in 79 km (49 mi) distance east of the epicenter. People likely experienced weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of Ecuador, Quito, 312 km (194 mi) away from the epicenter, the earthquake could not be felt.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry58 km (36 mi)NE of epicenterManta(pop: 264,300)III: WeakProvincia de ManabiEcuador58 km (36 mi)NE of epicenterMontecristi(pop: 18,400)III: WeakProvincia de ManabiEcuador62 km (38 mi)E of epicenterJipijapa(pop: 35,900)III: WeakProvincia de ManabiEcuador79 km (49 mi)E of epicenterSucre(pop: 15,300)III: WeakCanton Veinticuatro de Mayo, Provincia de ManabiEcuador79 km (49 mi)E of epicenterPortoviejo(pop: 321,800)III: WeakProvincia de ManabiEcuador84 km (52 mi)E of epicenterPajan(pop: 9,180)III: WeakCanton Pajan, Provincia de ManabiEcuador85 km (53 mi)E of epicenterSanta Ana de Vuelta Larga(pop: 12,800)III: WeakSanta Ana, Provincia de ManabiEcuador85 km (53 mi)NE of epicenterRocafuerte(pop: 10,300)III: WeakProvincia de ManabiEcuador106 km (66 mi)S of epicenterSalinas(pop: 43,900)II: Very weakProvincia de Santa ElenaEcuador109 km (68 mi)S of epicenterLa Libertad(pop: 75,900)II: Very weakProvincia del GuayasEcuador109 km (68 mi)NE of epicenterBahia de Caraquez(pop: 37,100)II: Very weakCanton Sucre, Provincia de ManabiEcuador109 km (68 mi)S of epicenterSanta Elena(pop: 42,200)II: Very weakProvincia de Santa ElenaEcuador116 km (72 mi)SE of epicenterPedro Carbo(pop: 23,400)II: Very weakProvincia del GuayasEcuador118 km (73 mi)NE of epicenterCalceta(pop: 17,300)II: Very weakCanton Bolivar, Provincia de ManabiEcuador132 km (82 mi)NE of epicenterChone(pop: 44,800)II: Very weakProvincia de ManabiEcuador137 km (85 mi)E of epicenterBalzar(pop: 40,100)II: Very weakProvincia del GuayasEcuador144 km (89 mi)SE of epicenterDaule(pop: 173,700)II: Very weakProvincia del GuayasEcuador148 km (92 mi)SE of epicenterEl Triunfo(pop: 32,300)II: Very weakDaule, Provincia del GuayasEcuador156 km (97 mi)E of epicenterVinces(pop: 32,500)II: Very weakProvincia de Los RiosEcuador168 km (104 mi)E of epicenterEl Empalme(pop: 48,800)II: Very weakProvincia del GuayasEcuador172 km (107 mi)SE of epicenterPlayas(pop: 30,600)II: Very weakProvincia del GuayasEcuador172 km (107 mi)SE of epicenterGuayaquil(pop: 2,723,700)II: Very weakProvincia del GuayasEcuador174 km (108 mi)SE of epicenterSamborondon(pop: 24,100)II: Very weakCanton Samborondon, Provincia del GuayasEcuador174 km (108 mi)SE of epicenterEloy Alfaro(pop: 315,700)II: Very weakDuran, Provincia del GuayasEcuador184 km (114 mi)SE of epicenterYaguachi Nuevo(pop: 27,900)II: Very weakCanton Yaguachi, Provincia del GuayasEcuador186 km (116 mi)E of epicenterVentanas(pop: 38,200)II: Very weakProvincia de Los RiosEcuador187 km (116 mi)E of epicenterBabahoyo(pop: 76,300)II: Very weakProvincia de Los RiosEcuador187 km (116 mi)SE of epicenterPosorja(pop: 30,900)II: Very weakGuayaquil, Provincia del GuayasEcuador187 km (116 mi)E of epicenterQuevedo(pop: 213,800)II: Very weakProvincia de Los RiosEcuador196 km (121 mi)SE of epicenterMilagro(pop: 133,500)II: Very weakProvincia del GuayasEcuador210 km (130 mi)SE of epicenterNaranjito(pop: 34,200)II: Very weakProvincia del GuayasEcuador229 km (142 mi)SE of epicenterNaranjal(pop: 32,000)II: Very weakProvincia del GuayasEcuador236 km (147 mi)SE of epicenterLa Troncal(pop: 36,400)II: Very weakCanarEcuador239 km (149 mi)E of epicenterGuaranda(pop: 22,200)II: Very weakProvincia de BolivarEcuador246 km (153 mi)NE of epicenterSanto Domingo de los Colorados(pop: 458,600)II: Very weakSanto Domingo, Provincia de Santo Domingo de los TsachilasEcuador256 km (159 mi)SE of epicenterMachala(pop: 289,100)II: Very weakProvincia de El OroEcuador257 km (160 mi)NE of epicenterRosa Zarate(pop: 42,100)II: Very weakCanton Quininde, Provincia de EsmeraldasEcuador271 km (168 mi)SE of epicenterPasaje(pop: 44,900)I: Not feltProvincia de El OroEcuador297 km (185 mi)SE of epicenterCuenca(pop: 637,000)I: Not feltProvincia del AzuayEcuador312 km (194 mi)E of epicenterQuito(pop: 2,781,600)I: Not feltProvincia de PichinchaEcuadorNotes:(*) 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 GMT2025-09-18EpicenterAgency4.35 km3.1 mi21:55:20Off Coast of EcuadorIGEPN (Institute of Geophysics of the National Polytechnic School in Quito)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 2 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 2 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Sep 18, 2025 04:55 pm (GMT -5)7 minutes ago4.35 km0 km - This quakeOff Coast of EcuadorMain 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 45 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.13 quakes per year (or 1 quake every 7.8 years)Mag. 5 or higher: 0.87 quakes per year (or 1 quake every 1.2 years)Mag. 4 or higher: 12.6 quakes per yearMag. 3 or higher: 43 quakes per year (or 3.6 quakes per month)Mag. 2 or higher: 44 quakes per year (or 3.7 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 16 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 5 to 10 years.Number of quakes per yearPrevious quakes in the same area of this earthquake