Moderate magnitude 4.0 earthquake at 30 km depth5 Sep 01:08 UTC: First to report: EMSC after 6 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeSep 5, 2025 01:02:39 UTC - Local time at epicenterThursday, Sep 4, 2025, at 07:02 pm (GMT -6)Statuspreliminary (automatic detection)Magnitude4.0Depth30 kmEpicenter latitude / longitude12.65°N / 88.68°WEl SalvadorSeismic antipode12.65°S / 91.32°EShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoUsulután (88 km / 55 mi)Weather at epicenter at time of quakeBroken Clouds 29°C (84 F), humidity: 74%, wind: 4 m/s (8 kts) from WEstimated 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 energy7 minutes agoSep 5, 2025 01:02 GMT / Sep 4, 2025 07:02 pm (GMT -6)Lat / Lng: 12.65 / -88.68: Offshore EL SalvadorSource: EMSCDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22135387',12.65000,-88.68000,'7 minutes ago: Mag. 4.0, Offshore EL Salvador',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 El SalvadorNearby placesThe closest larger town where the quake might have been felt is Usulutan, a town with 52,000 inhabitants in El Salvador, in 82 km (51 mi) distance north of the epicenter. People likely experienced very weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of Honduras, Tegucigalpa, 225 km (140 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(*)RegionCountry72 km (45 mi)N of epicenterPuerto El Triunfo(pop: 19,100)II: Very weakDepartamento de UsulutanEl Salvador82 km (51 mi)N of epicenterUsulutan(pop: 51,900)II: Very weakDepartamento de UsulutanEl Salvador82 km (51 mi)NE of epicenterJucuaran(pop: 1,640)II: Very weakDepartamento de UsulutanEl Salvador86 km (54 mi)NE of epicenterChirilagua(pop: 6,390)II: Very weakDepartamento de San MiguelEl Salvador88 km (54 mi)N of epicenterSan Agustin(pop: 2,150)II: Very weakDepartamento de UsulutanEl Salvador89 km (55 mi)NE of epicenterSan Rafael Oriente(pop: 19,100)II: Very weakDepartamento de San MiguelEl Salvador95 km (59 mi)N of epicenterSantiago de Maria(pop: 15,000)II: Very weakDepartamento de UsulutanEl Salvador96 km (60 mi)N of epicenterBerlin(pop: 11,300)II: Very weakDepartamento de UsulutanEl Salvador97 km (60 mi)N of epicenterZacatecoluca(pop: 39,600)II: Very weakDepartamento de La PazEl Salvador102 km (63 mi)N of epicenterJucuapa(pop: 10,600)II: Very weakDepartamento de UsulutanEl Salvador107 km (67 mi)NE of epicenterSan Miguel(pop: 247,100)II: Very weakDepartamento de San MiguelEl Salvador110 km (68 mi)N of epicenterSan Vicente(pop: 41,500)II: Very weakDepartamento de San VicenteEl Salvador116 km (72 mi)NW of epicenterLa Libertad(pop: 16,900)II: Very weakDepartamento de La LibertadEl Salvador119 km (74 mi)NE of epicenterLa Union(pop: 26,800)II: Very weakDepartamento de La UnionEl Salvador122 km (76 mi)N of epicenterCojutepeque(pop: 48,400)II: Very weakDepartamento de CuscatlanEl Salvador125 km (78 mi)NW of epicenterSan Marcos(pop: 54,600)II: Very weakDepartamento de San SalvadorEl Salvador126 km (78 mi)N of epicenterIlopango(pop: 38,900)II: Very weakDepartamento de San SalvadorEl Salvador128 km (80 mi)NW of epicenterSan Salvador(pop: 526,000)II: Very weakDepartamento de San SalvadorEl Salvador128 km (80 mi)NW of epicenterSoyapango(pop: 329,700)II: Very weakDepartamento de San SalvadorEl Salvador129 km (80 mi)N of epicenterSan Martin(pop: 39,400)II: Very weakDepartamento de CuscatlanEl Salvador129 km (80 mi)NW of epicenterAntiguo Cuscatlan(pop: 33,800)II: Very weakDepartamento de La LibertadEl Salvador130 km (81 mi)NW of epicenterDelgado(pop: 71,600)II: Very weakDepartamento de San SalvadorEl Salvador131 km (82 mi)NW of epicenterSanta Tecla(pop: 124,700)II: Very weakDepartamento de La LibertadEl Salvador132 km (82 mi)NW of epicenterMejicanos(pop: 160,300)II: Very weakDepartamento de San SalvadorEl Salvador132 km (82 mi)NW of epicenterCuscatancingo(pop: 44,400)II: Very weakDepartamento de San SalvadorEl Salvador133 km (82 mi)NE of epicenterSan Francisco(pop: 16,200)II: Very weakDepartamento de MorazanEl Salvador133 km (83 mi)NW of epicenterAyutuxtepeque(pop: 25,400)II: Very weakDepartamento de San SalvadorEl Salvador135 km (84 mi)N of epicenterSensuntepeque(pop: 20,400)II: Very weakDepartamento de CabanasEl Salvador140 km (87 mi)NW of epicenterApopa(pop: 112,200)II: Very weakDepartamento de San SalvadorEl Salvador146 km (91 mi)NW of epicenterQuezaltepeque(pop: 28,900)II: Very weakQuezaltepeque, Departamento de La LibertadEl Salvador156 km (97 mi)N of epicenterAguilares(pop: 21,400)II: Very weakDepartamento de San SalvadorEl Salvador156 km (97 mi)N of epicenterChalatenango(pop: 19,400)II: Very weakDepartamento de ChalatenangoEl Salvador162 km (101 mi)NW of epicenterIzalco(pop: 19,200)II: Very weakDepartamento de SonsonateEl Salvador163 km (101 mi)NW of epicenterAcajutla(pop: 22,800)II: Very weakDepartamento de SonsonateEl Salvador164 km (102 mi)NW of epicenterSonsonate(pop: 59,500)II: Very weakDepartamento de SonsonateEl Salvador165 km (102 mi)NW of epicenterSonzacate(pop: 15,400)II: Very weakDepartamento de SonsonateEl Salvador177 km (110 mi)NW of epicenterSanta Ana(pop: 176,700)II: Very weakDepartamento de Santa AnaEl Salvador184 km (114 mi)NW of epicenterChalchuapa(pop: 32,300)I: Not feltDepartamento de Santa AnaEl Salvador189 km (118 mi)NW of epicenterAhuachapan(pop: 34,100)I: Not feltDepartamento de AhuachapanEl Salvador225 km (140 mi)NE of epicenterTegucigalpa(pop: 850,800)I: Not feltDistrito Central, Departamento de Francisco MorazanHondurasNotes:(*) 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 GMT2025-09-5EpicenterAgency4.030 km19 mi01:02:39OFFSHORE EL SALVADOREMSC (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)Sep 4, 2025 07:02 pm (GMT -6)7 minutes ago4.030 km0 km - This quakeOffshore EL SalvadorMain 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 943 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.04 quakes per year (or 1 quake every 25 years)Mag. 6 or higher: 0.21 quakes per year (or 1 quake every 4.8 years)Mag. 5 or higher: 4.5 quakes per yearMag. 4 or higher: 89 quakes per year (or 7.5 quakes per month)Mag. 3 or higher: 512 quakes per year (or 43 quakes per month)Mag. 2 or higher: 925 quakes per year (or 77 quakes per month)Mag. 1 or higher: 940 quakes per year (or 78 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 5 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 23 to 27 years.Number of quakes per yearPrevious quakes in the same area of this earthquake