Moderate magnitude 4.0 earthquake at 18 km depth21 Sep 03:32 UTC: First to report: RaspberryShake after 22 minutes.21 Sep 03:36: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeSep 21, 2026 03:09:40 UTC - Local time at epicenterSunday, Sep 20, 2026, at 09:09 pm (GMT -6)StatusconfirmedMagnitude4.00Depth18 kmEpicenter latitude / longitude14.418°N / 94.325°WMexicoSeismic antipode14.418°S / 85.675°EShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Weather at epicenter at time of quakeLight Rain 30.3°C (87 F), humidity: 75%, wind: 5 m/s (11 kts) from WNWEstimated 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 energy29 minutes agoSep 21, 2026 03:09 GMT / Sep 20, 2026 09:09 pm (GMT -6)Lat / Lng: 14.418 / -94.325: Off Coast OF Chiapas, MexicoSource: EMSCOther sources: RaspberryShake: 4.0 / 18 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23379419',14.41800,-94.32500,'29 minutes ago: Mag. 4.0, Off Coast OF Chiapas, Mexico',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 MexicoNearby placesThe closest larger town where the quake might have been felt is El Yahital (Barra el Mapache), a town with 23 inhabitants in Mexico, in 169 km (105 mi) distance northeast of the epicenter. People likely experienced very weak shaking there. In the capital of Mexico, Mexico City, 756 km (470 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(*)RegionCountry169 km (105 mi)NE of epicenterEl Yahital (Barra el Mapache)(pop: 23)II: Very weakPijijiapan, Estado de ChiapasMexico169 km (105 mi)NE of epicenterEl Palmarcito(pop: 1,140)II: Very weakPijijiapan, Estado de ChiapasMexico170 km (105 mi)NE of epicenterLa Conquista(pop: 473)II: Very weakPijijiapan, Estado de ChiapasMexico171 km (106 mi)NE of epicenterBarrita de Pajon(pop: 375)II: Very weakMapastepec, Estado de ChiapasMexico174 km (108 mi)NE of epicenterManuel Avila Camacho (Ponte Duro)(pop: 1,780)II: Very weakTonala, Estado de ChiapasMexico178 km (110 mi)NE of epicenterZacapulco(pop: 385)II: Very weakAcapetahua, Estado de ChiapasMexico178 km (110 mi)NE of epicenterLa Piaña(pop: 118)II: Very weakPijijiapan, Estado de ChiapasMexico178 km (111 mi)NE of epicenterLas Brisas(pop: 1,720)II: Very weakPijijiapan, Estado de ChiapasMexico179 km (111 mi)NE of epicenterIbarra(pop: 470)II: Very weakMapastepec, Estado de ChiapasMexico180 km (112 mi)NE of epicenterTamaulipas(pop: 1,570)II: Very weakPijijiapan, Estado de ChiapasMexico182 km (113 mi)NE of epicenterColonia Central(pop: 816)I: Not feltPijijiapan, Estado de ChiapasMexico185 km (115 mi)NE of epicenterPijijiapan(pop: 50,100)I: Not feltEstado de ChiapasMexico189 km (117 mi)NE of epicenterNicolas Bravo Dos Anexo Emiliano Zapata(pop: 678)I: Not feltMapastepec, Estado de ChiapasMexico190 km (118 mi)NE of epicenterHermenegildo Galeana(pop: 1,160)I: Not feltPijijiapan, Estado de ChiapasMexico190 km (118 mi)NE of epicenterMapastepec(pop: 17,900)I: Not feltEstado de ChiapasMexico193 km (120 mi)NE of epicenterLa Fe de San José (Los Claveria)(pop: 10)I: Not feltPijijiapan, Estado de ChiapasMexico196 km (121 mi)NE of epicenterPlan de Ayala(pop: 662)I: Not feltPijijiapan, Estado de ChiapasMexico201 km (125 mi)NE of epicenterEl Palmar (El Rosario)(pop: 64)I: Not feltPijijiapan, Estado de ChiapasMexico203 km (126 mi)NE of epicenterTres de Mayo(pop: 473)I: Not feltMapastepec, Estado de ChiapasMexico207 km (128 mi)NE of epicenterSanta Anita(pop: 148)I: Not feltLa Concordia, Estado de ChiapasMexico214 km (133 mi)NE of epicenterLoma Bonita(pop: 23)I: Not feltLa Concordia, Estado de ChiapasMexico215 km (134 mi)NE of epicenterPlan de la Libertad(pop: 638)I: Not feltLa Concordia, Estado de ChiapasMexico756 km (470 mi)NW of epicenterMexico City(pop: 12,294,200): Not feltCiudad de MexicoMexicoNotes:(*) 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 GMT2026-09-21EpicenterAgency4.018 km11 mi03:09:40OFF COAST OF CHIAPAS, MEXICOEMSC (European-Mediterranean Seismological Centre)4.018 km11 mi03:09:40Off Coast of Chiapas, Mexico0 km (0 mi) epicenter difference with EMSCRaspberryShake (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)Sep 20, 2026 09:09 pm (GMT -6)29 minutes ago4.018 km0 km - This quakeNorth Pacific Ocean, 185 km SW of Pijijiapan, Estado de Chiapas, MexicoMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 26 years and our earthquake archive back to 1900, there are about 533 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.1 quakes per year (or 1 quake every 10.5 years)Mag. 5 or higher: 2.1 quakes per yearMag. 4 or higher: 186 quakes per year (or 15.5 quakes per month)Mag. 3 or higher: 531 quakes per year (or 44 quakes per month)Mag. 2 or higher: 531 quakes per year (or 44 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 12 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 10 to 15 years.Number of quakes per yearPrevious quakes in the same area of this earthquake