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The quake had a moderate depth of 99 km (62 mi) and was not felt (or at least not reported so).Quake Data | Interactive map | Seismograms | User reports | Aftershocks | Earlier quakes here | Quakes in Mexico | Estado de Oaxaca | Estado de Veracruz-Llave | Ciudad de MexicoHint: Click on the image to see different maps of this quake!Moderate magnitude 4.2 earthquake at 99 km depth18 Jul 21:12 UTC: First to report: RaspberryShake after 24 minutes.18 Jul 21:14: Now using data updates from SSN18 Jul 21:15: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeJul 18, 2026 20:47:57 UTC - Local time at epicenterSaturday, Jul 18, 2026, at 02:47 pm (GMT -6)StatusconfirmedMagnitude4.20Depth99 kmEpicenter latitude / longitude16.959°N / 95.148°WSan Juan Guichicovi, Estado de Oaxaca, MexicoSeismic antipode16.959°S / 84.852°EShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoSan Martín (179 km / 111 mi)Weather at epicenter at time of quakeLight Rain 28.5°C (83 F), humidity: 59%, wind: 5 m/s (10 kts) from NEstimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | equivalent to ONE quake of magnitude 4.2 | about seismic energy38 minutes agoJul 18, 2026 20:47 GMT / Jul 18, 2026 02:47 pm (GMT -6)Lat / Lng: 16.959 / -95.148: Oaxaca, MexicoSource: EMSCOther sources: RaspberryShake: 4.2 / 99 km, SSN: 4.2 / 99 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23196786',16.95900,-95.14800,'38 minutes ago: Mag. 4.2, 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 60 km (37 mi) distance south 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, 502 km (312 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(*)RegionCountry2 km (1 mi)E of epicenterEl Ocotalito(pop: 323)II: Very weakSan Juan Guichicovi, Estado de OaxacaMexico12 km (8 mi)E of epicenterEstacion Mogone(pop: 1,470)II: Very weakSan Juan Guichicovi, Estado de OaxacaMexico15 km (9 mi)SE of epicenterMatias Romero Avendano(pop: 18,900)II: Very weakMatias Romero Avendano, Estado de OaxacaMexico16 km (10 mi)S of epicenterSanto Domingo Petapa(pop: 5,430)II: Very weakEstado de OaxacaMexico22 km (14 mi)NE of epicenterPalomares(pop: 3,760)II: Very weakMatias Romero Avendano, Estado de OaxacaMexico32 km (20 mi)N of epicenterDonaji(pop: 2,360)II: Very weakMatias Romero Avendano, Estado de OaxacaMexico32 km (20 mi)NE of epicenterCuauhtemoc(pop: 2,260)II: Very weakMatias Romero Avendano, Estado de OaxacaMexico33 km (20 mi)W of epicenterSan Juan Mazatlan(pop: 1,790)II: Very weakSan Juan Mazatlan, Estado de OaxacaMexico33 km (20 mi)SW of epicenterSanta Maria Guenagati(pop: 1,490)II: Very weakSanta Maria Guienagati, Estado de OaxacaMexico40 km (25 mi)SE of epicenterLazaro Cardenas(pop: 1,380)II: Very weakAsuncion Ixtaltepec, Estado de OaxacaMexico42 km (26 mi)S of epicenterSantiago Laollaga(pop: 2,550)II: Very weakEstado de OaxacaMexico45 km (28 mi)S of epicenterIxtepec(pop: 25,400)II: Very weakEstado de OaxacaMexico49 km (30 mi)N of epicenterLos Angeles(pop: 1,140)II: Very weakMatias Romero Avendano, Estado de OaxacaMexico49 km (30 mi)NW of epicenterConstitucion Mexicana(pop: 1,220)II: Very weakSan Juan Mazatlan, Estado de OaxacaMexico49 km (31 mi)W of epicenterSantiago Malacatepec(pop: 1,170)II: Very weakSan Juan Mazatlan, Estado de OaxacaMexico50 km (31 mi)E of epicenterSanta Maria Chimalapa(pop: 2,540)II: Very weakSanta Maria Chimalapa, Estado de OaxacaMexico50 km (31 mi)SE of epicenterLa Ventosa(pop: 4,880)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico51 km (31 mi)SE of epicenterSan Miguel Chimalapa(pop: 1,440)II: Very weakEstado de OaxacaMexico51 km (32 mi)SW of epicenterSantiago Lachiguiri(pop: 1,650)II: Very weakEstado de OaxacaMexico55 km (34 mi)N of epicenterJesus Carranza(pop: 4,020)II: Very weakJesus Carranza, Estado de Veracruz-LlaveMexico56 km (35 mi)SE of epicenterLa Venta(pop: 2,160)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico58 km (36 mi)N of epicenterEl Porvenir(pop: 1,580)II: Very weakSan Juan Cotzocon, Estado de OaxacaMexico60 km (37 mi)S of epicenterHeroica Ciudad de Juchitan de Zaragoza(pop: 88,300)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico61 km (38 mi)NW of epicenterSanta Maria Puxmetacan(pop: 1,380)II: Very weakSan Juan Cotzocon, Estado de OaxacaMexico61 km (38 mi)SW of epicenterJalapa(pop: 8,290)II: Very weakEstado de OaxacaMexico62 km (38 mi)W of epicenterSantiago Quiavicuzas(pop: 1,460)II: Very weakSan Carlos Yautepec, Estado de OaxacaMexico62 km (39 mi)NW of epicenterMaria Lombardo de Caso(pop: 3,860)II: Very weakSan Juan Cotzocon, Estado de OaxacaMexico64 km (40 mi)SE of epicenterUnion Hidalgo(pop: 13,700)II: Very weakUnion Hidalgo, Estado de OaxacaMexico65 km (41 mi)W of epicenterSan Miguel Quetzaltepec(pop: 3,860)II: Very weakEstado de OaxacaMexico70 km (44 mi)NW of epicenterSan Juan Jaltepec(pop: 1,120)II: Very weakSantiago Yaveo, Estado de OaxacaMexico71 km (44 mi)S of epicenterHeroica Villa de San Blas Atempa(pop: 12,000)II: Very weakSan Blas Atempa, Estado de OaxacaMexico71 km (44 mi)S of epicenterSanto Domingo Tehuantepec(pop: 67,700)II: Very weakEstado de OaxacaMexico71 km (44 mi)W of epicenterSan Juan Cotzocon(pop: 3,700)II: Very weakSan Juan Cotzocon, Estado de OaxacaMexico72 km (45 mi)SE of epicenterNiltepec(pop: 3,290)II: Very weakEstado de OaxacaMexico74 km (46 mi)S of epicenterAlvaro Obregon(pop: 3,560)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico75 km (47 mi)W of epicenterGuadalupe Victoria(pop: 1,150)II: Very weakSan Juan Juquila Mixes, Estado de OaxacaMexico79 km (49 mi)SW of epicenterMagdalena Tequisistlan(pop: 3,830)II: Very weakMagdalena Tequisistlan, Estado de OaxacaMexico87 km (54 mi)SE of epicenterLas Amilpas(pop: 8,800)II: Very weakSan Dionisio del Mar, Estado de OaxacaMexico168 km (104 mi)W of epicenterOaxaca(pop: 255,000)II: Very weakEstado de OaxacaMexico502 km (312 mi)NW of epicenterMexico City(pop: 12,294,200)I: 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 GMT2026-07-18EpicenterAgency4.299 km62 mi20:47:57OAXACA, MEXICOEMSC (European-Mediterranean Seismological Centre)4.299 km62 mi20:47:57Oaxaca, Mexico0 km (0 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.299 km62 mi20:47:5715 km al NOROESTE de MATIAS ROMERO, OAX0 km (0 mi) epicenter difference with EMSCSSN (Servicio Sismológico Nacional)"; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}]]>SeismogramsSeismic station: COMITAN (CCIG/MX network) | Distance from quake: 330 km / 205 mi | Show on map | Station InfoSeismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-5.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: TLAPA (TLIG/MX network) | Distance from quake: 369 km / 229 mi | Show on map | Station InfoShow moreAftershocks 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 (1 mi).[More info]Recorded aftershocks, latest first (0 quake)Jul 18, 2026 02:47 pm (GMT -6)38 minutes ago4.299 km0 km - This quake15 km NW of Matias Romero Avendano, Estado de Oaxaca, MexicoMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake38 minutes agoJul 18, 2026 20:47 GMT / Jul 18, 2026 02:47 pm (GMT -6)Lat / Lng: 16.959 / -95.148: Oaxaca, MexicoSource: EMSCOther sources: RaspberryShake: 4.2 / 99 km, SSN: 4.2 / 99 kmDetail info | You felt it? - Report it!',4.2,42, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',16.959,-95.148,'38 minutes ago: Mag. 4.2, Oaxaca, Mexico','Earthquake: Mag 4.2 / 99 km (62 mi) depth38 minutes agoJul 18, 2026 20:47 GMT / Jul 18, 2026 02:47 pm (GMT -6)Lat / Lng: 16.959 / -95.148: Oaxaca, MexicoSource: EMSCOther sources: RaspberryShake: 4.2 / 99 km, SSN: 4.2 / 99 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)})(); })(); (function(){let done=false;async function loadPrevious(){if(done)return;done=true;while(typeof mkRequest=="undefined")await new Promise(r=>setTimeout(r,500));mkRequest("https://server2.allquakes.com/api/getPrevious.php?quakeId=23196786","get","",function(httpObj){let r=httpObj.responseText,d=document;if(""!=r&&200==httpObj.status){let o=JSON.parse(r);if(!o){let s=d.getElementById("olderQuakesSection");if(s)s.remove();return};let table=d.getElementById("qTableOlder");if(!table)return;table.innerHTML+=o.tableRows,qTableOlder.alternateBg();let ph=d.getElementById("placeholder_largestQText");if(ph)ph.innerHTML=o.html;let wrap=d.getElementById("sectionPreviousCWrap");if(wrap)wrap.style.display="";eval(o.js)}})}let d=document,target=d.getElementById("sectionPreviousCWrap")||d.getElementById("placeholder_largestQText")||d.getElementById("qTableOlder");if(!target||!("IntersectionObserver" in window)){loadPrevious();return}let obs=new IntersectionObserver(function(entries){if(entries.some(e=>e.isIntersecting)){obs.disconnect();loadPrevious()}},{rootMargin:"300px 0px"});obs.observe(target)})();]]>Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.