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The quake had a very shallow depth of 17.1 km (11 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 ChiapasHint: Click on the image to see different maps of this quake!Moderate magnitude 4.0 earthquake at 17 km depth15 Jul 04:30 UTC: First to report: SSN after 34 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 15, 2026 03:55:36 UTC - Local time at epicenterTuesday, Jul 14, 2026, at 09:55 pm (America/Mexico_City GMT -6)Statuspreliminary (automatic detection)Magnitude4.0Depth17.1 kmEpicenter latitude / longitude15.536°N / 94.588°WMexicoSeismic antipode15.536°S / 85.412°EShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceSSN (Servicio Sismológico Nacional)Nearest volcanoEl Chichón (249 km / 155 mi)Weather at epicenter at time of quakeClear Sky 29.3°C (85 F), humidity: 77%, wind: 12 m/s (23 kts) from NNWEstimated 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 energy39 minutes agoJul 15, 2026 03:55 GMT / Jul 14, 2026 09:55 pm (Mexico_City time)Lat / Lng: 15.536 / -94.588: Mexico: 97 km Al SURESTE De SALINA CRUZ, OAXSource: SSNDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23186760',15.53600,-94.58800,'39 minutes ago: Mag. 4.0, Mexico: 97 km Al SURESTE De SALINA CRUZ, OAX',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 Salina Cruz, a town with 84,000 inhabitants in Mexico, in 96 km (60 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, 647 km (402 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(*)RegionCountry76 km (47 mi)NE of epicenterPortillo Guayaba(pop: 10)II: Very weakSan Francisco del Mar, Estado de OaxacaMexico78 km (48 mi)N of epicenterSan Francisco del Mar Viejo(pop: 4,030)II: Very weakSan Francisco del Mar, Estado de OaxacaMexico80 km (50 mi)NE of epicenterCachimbo(pop: 124)II: Very weakSan Francisco del Mar, Estado de OaxacaMexico81 km (51 mi)N of epicenterSanta Maria del Mar(pop: 771)II: Very weakHeroica Ciudad de Juchitan de Zaragoza, Estado de OaxacaMexico82 km (51 mi)NE of epicenterPesqueria Rancho Salinas(pop: 593)II: Very weakSan Pedro Tapanatepec, Estado de OaxacaMexico86 km (54 mi)NW of epicenterSan Mateo del Mar(pop: 5,730)II: Very weakEstado de OaxacaMexico90 km (56 mi)NW of epicenterLa Reforma(pop: 210)II: Very weakMexico90 km (56 mi)NE of epicenterEmiliano Zapata(pop: 3,350)II: Very weakArriaga, Estado de ChiapasMexico91 km (56 mi)NE of epicenterPunta Flor(pop: 931)II: Very weakArriaga, Estado de ChiapasMexico96 km (60 mi)NE of epicenterParedon(pop: 6,130)II: Very weakTonala, Estado de ChiapasMexico96 km (60 mi)NW of epicenterSalina Cruz(pop: 84,400)II: Very weakEstado de OaxacaMexico100 km (62 mi)NW of epicenterGuelaguechi(pop: 515)II: Very weakSanto Domingo Tehuantepec, Estado de OaxacaMexico107 km (67 mi)NE of epicenterArriaga(pop: 24,400)II: Very weakEstado de ChiapasMexico109 km (68 mi)NW of epicenterRincon Moreno(pop: 1,020)II: Very weakSanto Domingo Tehuantepec, Estado de OaxacaMexico647 km (402 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 GMT2026-07-15EpicenterAgency4.017 km10.6 mi03:55:3697 km al SURESTE de SALINA CRUZ, OAXSSN (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: 275 km / 171 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: 480 km / 298 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 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)Jul 14, 2026 09:55 pm (Mexico_City)39 minutes ago4.017 km0 km - This quakeMexico: 97 km Al SURESTE De SALINA CRUZ, OAXMain 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 1,400 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.17 quakes per year (or 1 quake every 5.9 years)Mag. 5 or higher: 3.3 quakes per yearMag. 4 or higher: 347 quakes per year (or 28.9 quakes per month)Mag. 3 or higher: 1,400 quakes per year (or 3.7 quakes per day)Mag. 2 or higher: 1,400 quakes per year (or 3.7 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 21 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