Moderate mag. 4.1 earthquake - Portugal: Atlántico-Marruecos on Friday, Mar 20, 2026, at 04:18 am (Universal Time)

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The depth of the quake could not be determined, but is assumed to be shallow.The quake was not felt (or at least not reported so).Quake Data | Interactive map | User reports | Aftershocks | Earlier quakes here | Quakes in Portugal | Madeira | Distrito de LisboaHint: Click on the image to see different maps of this quake!Moderate magnitude 4.1 earthquake at unknown depth20 Mar 04:30 UTC: First to report: IGN after 12 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeMar 20, 2026 04:18:32 UTC - Local time at epicenterFriday, Mar 20, 2026, at 04:18 am (GMT +0)StatusconfirmedMagnitude4.1DepthUnknownEpicenter latitude / longitude33.0629°N / 13.4477°WPortugalSeismic antipode33.0629°S / 166.5523°EShaking intensityV Moderate shaking near epicenterFelt0 reportsPrimary data sourceIGN (Instituto Geográfico Nacional)Weather at epicenter at time of quakeHeavy Intensity Rain 15.4°C (60 F), humidity: 82%, wind: 10 m/s (20 kts) from SSEEstimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | equivalent to ONE quake of magnitude 4.1 | about seismic energy13 minutes agoMar 20, 2026 04:18 GMT / Mar 20, 2026 04:18 am (GMT +0)Lat / Lng: 33.0629 / -13.4477: Portugal: Atlántico-MarruecosSource: IGNOther sources: RaspberryShake: 4.1 / 0 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22825169',33.06290,-13.44770,'13 minutes ago: Mag. 4.1, Portugal: Atlántico-Marruecos',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+="&notFelt=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 MadeiraNearby placesThe closest larger town near the epicenter is Camacha, a town with 5,100 inhabitants in Portugal, in 270 km (168 mi) distance to the west, but it is unlikely that the quake was felt there. DistancePlaceMax. shaking intensity(*)RegionCountry270 km (168 mi)W of epicenterCamacha(pop: 5,150)I: Not feltPorto Santo, MadeiraPortugal312 km (194 mi)W of epicenterMachico(pop: 12,600)I: Not feltMadeiraPortugal320 km (199 mi)W of epicenterCanico(pop: 23,400)I: Not feltSanta Cruz, MadeiraPortugal322 km (200 mi)W of epicenterSantana(pop: 8,800)I: Not feltMadeiraPortugal739 km (459 mi)NE of epicenterLisbon(pop: 517,800): Not feltDistrito de LisboaPortugalNotes:(*) 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!Get the Android appCompare 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 GMT2026-03-20EpicenterAgency4.10 km0 mi04:18:32ATLÁNTICO-MARRUECOSIGN (Instituto Geográfico Nacional)4.10 km0 mi04:18:32Madeira Islands, Portugal Region0 km (0 mi) epicenter difference with IGNRaspberryShake (RaspberryShake)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)Mar 20, 2026 04:18 am (GMT +0)13 minutes ago4.10 km0 km - This quakePortugal: Atlántico-MarruecosMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake13 minutes agoMar 20, 2026 04:18 GMT / Mar 20, 2026 04:18 am (GMT +0)Lat / Lng: 33.0629 / -13.4477: Portugal: Atlántico-MarruecosSource: IGNOther sources: RaspberryShake: 4.1 / 0 kmDetail info | You felt it? - Report it!',4.1,41, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',33.0629,-13.4477,'13 minutes ago: Mag. 4.1, Portugal: Atlántico-Marruecos','Earthquake: Mag 4.1 / 0 km (0 mi) depth13 minutes agoMar 20, 2026 04:18 GMT / Mar 20, 2026 04:18 am (GMT +0)Lat / Lng: 33.0629 / -13.4477: Portugal: Atlántico-MarruecosSource: IGNOther sources: RaspberryShake: 4.1 / 0 kmDetail info | You felt it? - Report it!','default'); // this will be local to this table obj function putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex) { qTableOlder.putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex); } map2.circleScale=0.5;qTableOlder.usePalette=1;qTableOlder.startVal=qTableOlder.referenceTime-(80*365.25*86400);qTableOlder.endVal=qTableOlder.referenceTime; qTableOlder.assignMap(map2); (async function(){await new Promise(r => setTimeout(r,4000));map2.map.setZoom(7)})(); })(); (async function(){while(typeof mkRequest=="undefined")await new Promise(r=>setTimeout(r,500));mkRequest("https://server2.allquakes.com/api/getPrevious.php?quakeId=22825169","get","",function(httpObj){let r=httpObj.responseText,d=document;if(""!=r&&200==httpObj.status){let o=JSON.parse(r);if(!o){d.getElementById("olderQuakesSection").remove();return};let table=d.getElementById("qTableOlder");table.innerHTML+=o.tableRows,qTableOlder.alternateBg(),d.getElementById("placeholder_largestQText").innerHTML=o.html,d.getElementById("sectionPreviousCWrap").style.display="",eval(o.js)}})})();]]>Support Us – Help Us Enhance Our Services!We’re passionate about delivering the latest volcano and earthquake data from around the globe — just for you. 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