Moderate magnitude 4.0 earthquake at 68 km depth1 Oct 06:08 UTC: First to report: EMSC after 16 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeOct 1, 2026 05:52:00 UTC - Local time at epicenterWednesday, Sep 30, 2026, at 11:52 pm (GMT -6)StatusconfirmedMagnitude4.00Depth68 kmEpicenter latitude / longitude16.01°N / 94.689°WSan Francisco del Mar, Estado de Oaxaca, MexicoSeismic antipode16.01°S / 85.311°EShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoEl Chichón (216 km / 134 mi)Weather at epicenter at time of quakeLight Rain 28.8°C (84 F), humidity: 83%, wind: 3 m/s (6 kts) from ESEEstimated 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 energy19 minutes agoOct 1, 2026 05:52 GMT / Sep 30, 2026 11:52 pm (GMT -6)Lat / Lng: 16.01 / -94.689: Offshore Oaxaca, MexicoSource: EMSCOther sources: RaspberryShake: 4.0 / 68 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23402807',16.01000,-94.68900,'19 minutes ago: Mag. 4.0, Offshore Oaxaca, 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 Heroica Ciudad de Juchitan de Zaragoza, a town with 88,000 inhabitants in Mexico, in 59 km (37 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 Mexico, Mexico City, 605 km (376 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(*)RegionCountry25 km (16 mi)N of epicenterSan Francisco del Mar Viejo(pop: 4,030)II: Very weakSan Francisco del Mar, Estado de OaxacaMexico30 km (18 mi)NW of epicenterSanta Maria del Mar(pop: 771)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico34 km (21 mi)NE of epicenterCerro Grande(pop: 548)II: Very weakSan Francisco Ixhuatan, Estado de OaxacaMexico36 km (22 mi)N of epicenterSan Dionisio del Mar(pop: 3,140)II: Very weakEstado de OaxacaMexico38 km (24 mi)NW of epicenterSan Mateo del Mar(pop: 5,730)II: Very weakEstado de OaxacaMexico40 km (25 mi)N of epicenterLas Amilpas(pop: 8,800)II: Very weakSan Dionisio del Mar, Estado de OaxacaMexico44 km (27 mi)NE of epicenterSan Francisco Ixhuatan(pop: 5,410)II: Very weakSan Francisco Ixhuatan, Estado de OaxacaMexico46 km (29 mi)NW of epicenterLa Reforma(pop: 210)II: Very weakMexico47 km (29 mi)NE of epicenterRincon de Juarez(pop: 941)II: Very weakSan Pedro Tapanatepec, Estado de OaxacaMexico51 km (32 mi)NE of epicenterPesqueria Rancho Salinas(pop: 593)II: Very weakSan Pedro Tapanatepec, Estado de OaxacaMexico53 km (33 mi)NW of epicenterAlvaro Obregon(pop: 3,560)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico54 km (33 mi)N of epicenterUnion Hidalgo(pop: 13,700)II: Very weakUnion Hidalgo, Estado de OaxacaMexico57 km (35 mi)NE of epicenterHuanacastal(pop: 783)II: Very weakSanto Domingo Zanatepec, Estado de OaxacaMexico57 km (35 mi)W of epicenterSalina Cruz(pop: 84,400)II: Very weakEstado de OaxacaMexico59 km (37 mi)NW of epicenterHeroica Ciudad de Juchitan de Zaragoza(pop: 88,300)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico61 km (38 mi)NE of epicenterChahuites(pop: 10,800)II: Very weakEstado de OaxacaMexico62 km (39 mi)N of epicenterNiltepec(pop: 3,290)II: Very weakEstado de OaxacaMexico64 km (40 mi)N of epicenterLa Venta(pop: 2,160)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico64 km (40 mi)NE of epicenterSanto Domingo Zanatepec(pop: 7,250)II: Very weakEstado de OaxacaMexico66 km (41 mi)NE of epicenterGeneral Pascual Fentes(pop: 1,080)II: Very weakSanto Domingo Zanatepec, Estado de OaxacaMexico66 km (41 mi)NW of epicenterLa Ventosa(pop: 4,880)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico67 km (42 mi)NW of epicenterRancho el Llano(pop: 718)II: Very weakSan Blas Atempa, Estado de OaxacaMexico67 km (42 mi)NW of epicenterHeroica Villa de San Blas Atempa(pop: 12,000)II: Very weakSan Blas Atempa, Estado de OaxacaMexico69 km (43 mi)NW of epicenterSanto Domingo Tehuantepec(pop: 67,700)II: Very weakEstado de OaxacaMexico69 km (43 mi)E of epicenterCachimbo(pop: 124)II: Very weakSan Francisco del Mar, Estado de OaxacaMexico69 km (43 mi)E of epicenterEmiliano Zapata(pop: 3,350)II: Very weakArriaga, Estado de ChiapasMexico71 km (44 mi)W of epicenterRincon Moreno(pop: 1,020)II: Very weakSanto Domingo Tehuantepec, Estado de OaxacaMexico74 km (46 mi)NE of epicenterEl Espinal(pop: 7,620)II: Very weakEstado de OaxacaMexico74 km (46 mi)W of epicenterMorro de Mazatan(pop: 2,630)II: Very weakSanto Domingo Tehuantepec, Estado de OaxacaMexico76 km (47 mi)NW of epicenterIxtepec(pop: 25,400)II: Very weakEstado de OaxacaMexico77 km (48 mi)E of epicenterPunta Flor(pop: 931)II: Very weakArriaga, Estado de ChiapasMexico78 km (48 mi)NW of epicenterMagdalena Tlacotepec(pop: 1,180)II: Very weakEstado de OaxacaMexico79 km (49 mi)NE of epicenterRamon Escobar Balboa(pop: 120)II: Very weakSan Miguel Chimalapa, Estado de OaxacaMexico79 km (49 mi)N of epicenterSan Miguel Chimalapa(pop: 1,440)II: Very weakEstado de OaxacaMexico79 km (49 mi)N of epicenterSantiago Ixtaltepec(pop: 1,160)II: Very weakAsuncion Ixtaltepec, Estado de OaxacaMexico80 km (50 mi)NW of epicenterMena(pop: 221)II: Very weakAsuncion Ixtaltepec, Estado de OaxacaMexico83 km (51 mi)E of epicenterAzteca(pop: 1,830)II: Very weakArriaga, Estado de ChiapasMexico83 km (52 mi)NE of epicenterNueva Tenochtitlan (Rizo de Oro)(pop: 1,640)II: Very weakCintalapa, Estado de ChiapasMexico247 km (153 mi)NW of epicenterOaxaca(pop: 255,000)I: Not feltEstado de OaxacaMexico605 km (376 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 GMT2026-10-1EpicenterAgency4.068 km42 mi05:52:00OFFSHORE OAXACA, MEXICOEMSC (European-Mediterranean Seismological Centre)4.068 km42 mi05:52:00Oaxaca, 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 30, 2026 11:52 pm (GMT -6)19 minutes ago4.068 km0 km - This quakeNorth Pacific Ocean, 57 km E of Salina Cruz, Estado de Oaxaca, 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 1,800 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 years)Mag. 5 or higher: 2.6 quakes per yearMag. 4 or higher: 373 quakes per year (or 31.1 quakes per month)Mag. 3 or higher: 1,800 quakes per year (or 5 quakes per day)Mag. 2 or higher: 1,800 quakes per year (or 5 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 13 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