Moderate magnitude 4.0 earthquake at 10 km depth18 Aug 02:20 UTC: First to report: RaspberryShake after 22 minutes.18 Aug 02:22: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeAug 18, 2026 01:57:37 UTC - Local time at epicenterMonday, Aug 17, 2026, at 07:57 pm (America/Mexico City GMT -6)StatusconfirmedMagnitude4.00Depth9.6 kmEpicenter latitude / longitude16.743°N / 98.314°WOmetepec, Estado de Guerrero, MexicoSeismic antipode16.743°S / 81.686°EShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Weather at epicenter at time of quakeClear Sky 27°C (81 F), humidity: 86%, wind: 1 m/s (3 kts) from SSEEstimated 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 agoAug 18, 2026 01:57 GMT / Aug 17, 2026 07:57 pm (Mexico City time)Lat / Lng: 16.743 / -98.314: Guerrero, MexicoSource: EMSCOther sources: RaspberryShake: 4.0 / 9.6 km, SSN: 4.0 / 9.6 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23286574',16.74300,-98.31400,'39 minutes ago: Mag. 4.0, Guerrero, 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 Pinotepa Nacional, a town with 30,000 inhabitants in Mexico, in 53 km (33 mi) distance southeast of the epicenter. People likely experienced 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, 311 km (193 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(*)RegionCountry3 km (2 mi)SW of epicenterCumbre de Barranca Honda(pop: 1,220)IV: LightOmetepec, Estado de GuerreroMexico10 km (6 mi)NE of epicenterXochistlahuaca(pop: 4,150)IV: LightEstado de GuerreroMexico12 km (7 mi)SW of epicenterOmetepec(pop: 24,100)IV: LightEstado de GuerreroMexico13 km (8 mi)NW of epicenterSan Cristobal(pop: 1,300)IV: LightTlacoachistlahuaca, Estado de GuerreroMexico21 km (13 mi)W of epicenterQuetzalapa(pop: 1,640)III: WeakAzoyu, Estado de GuerreroMexico22 km (14 mi)SE of epicenterSan Juan Cacahuatepec(pop: 4,240)III: WeakEstado de OaxacaMexico24 km (15 mi)N of epicenterEl Carmen(pop: 1,280)III: WeakXochistlahuaca, Estado de GuerreroMexico28 km (18 mi)S of epicenterSantiago Llano Grande(pop: 1,880)III: WeakEstado de OaxacaMexico31 km (19 mi)W of epicenterAzoyu(pop: 4,210)III: WeakAzoyu, Estado de GuerreroMexico32 km (20 mi)S of epicenterCuajinicuilapa(pop: 10,300)III: WeakEstado de GuerreroMexico32 km (20 mi)E of epicenterIpalapa(pop: 1,910)III: WeakEstado de OaxacaMexico33 km (20 mi)SW of epicenterEl Pitahayo(pop: 1,620)III: WeakCuajinicuilapa, Estado de GuerreroMexico35 km (21 mi)SE of epicenterSan Antonio Tepetlapa(pop: 2,620)III: WeakEstado de OaxacaMexico35 km (21 mi)E of epicenterZacatepec(pop: 4,850)III: WeakEstado de OaxacaMexico37 km (23 mi)W of epicenterJuchitan(pop: 3,350)III: WeakJuchitan, Estado de GuerreroMexico42 km (26 mi)SW of epicenterSan Nicolas(pop: 3,270)III: WeakCuajinicuilapa, Estado de GuerreroMexico43 km (27 mi)NE of epicenterSanta Cruz Yucucani(pop: 1,270)III: WeakTlacoachistlahuaca, Estado de GuerreroMexico43 km (27 mi)NW of epicenterPueblo Hidalgo(pop: 3,720)III: WeakSan Luis Acatlan, Estado de GuerreroMexico44 km (27 mi)N of epicenterJicayan de Tovar(pop: 1,400)III: WeakTlacoachistlahuaca, Estado de GuerreroMexico45 km (28 mi)W of epicenterZoyatlan(pop: 1,120)III: WeakMarquelia, Estado de GuerreroMexico45 km (28 mi)W of epicenterSan Luis Acatlan(pop: 8,280)III: WeakEstado de GuerreroMexico46 km (28 mi)SE of epicenterSan Pedro Jicayan(pop: 4,710)III: WeakSan Pedro Jicayan, Estado de OaxacaMexico46 km (29 mi)E of epicenterSan Juan Cabeza del Rio(pop: 1,590)III: WeakSanta Maria Zacatepec, Estado de OaxacaMexico46 km (29 mi)S of epicenterSanto Domingo Armenta(pop: 2,580)III: WeakEstado de OaxacaMexico48 km (30 mi)S of epicenterEl Ciruelo(pop: 2,220)III: WeakSantiago Pinotepa Nacional, Estado de OaxacaMexico51 km (32 mi)N of epicenterMetlatonoc(pop: 3,590)III: WeakMetlatonoc, Estado de GuerreroMexico52 km (32 mi)NE of epicenterPutla Villa de Guerrero(pop: 10,900)III: WeakEstado de OaxacaMexico52 km (32 mi)NW of epicenterIliatenco(pop: 1,710)III: WeakEstado de GuerreroMexico53 km (33 mi)SE of epicenterPinotepa Nacional(pop: 29,600)III: WeakEstado de OaxacaMexico56 km (35 mi)NW of epicenterTlaxcalixtlahuaca(pop: 1,440)III: WeakSan Luis Acatlan, Estado de GuerreroMexico56 km (35 mi)W of epicenterMarquelia(pop: 6,550)III: WeakEstado de GuerreroMexico63 km (39 mi)SE of epicenterSan Andres Huaxpaltepec(pop: 4,150)II: Very weakSan Andres Huaxpaltepec, Estado de OaxacaMexico69 km (43 mi)N of epicenterPeras(pop: 3,510)II: Very weakEstado de GuerreroMexico72 km (45 mi)W of epicenterCopala(pop: 6,620)II: Very weakEstado de GuerreroMexico73 km (46 mi)W of epicenterCuautepec(pop: 3,570)II: Very weakEstado de GuerreroMexico73 km (46 mi)NE of epicenterSantiago Juxtlahuaca(pop: 9,570)II: Very weakEstado de OaxacaMexico73 km (46 mi)SE of epicenterSantiago Jamiltepec(pop: 10,100)II: Very weakEstado de OaxacaMexico89 km (55 mi)NE of epicenterHeroica Ciudad de Tlaxiaco(pop: 17,500)II: Very weakEstado de OaxacaMexico155 km (96 mi)NW of epicenterChilpancingo(pop: 187,300)II: Very weakEstado de GuerreroMexico311 km (193 mi)N 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 GMT2026-08-18EpicenterAgency4.09.6 km6 mi01:57:37GUERRERO, MEXICOEMSC (European-Mediterranean Seismological Centre)4.09.6 km6 mi01:57:37Near Coast of Guerrero, Mexico0 km (0 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.09.6 km6 mi01:57:3712 km al NORESTE de OMETEPEC, GRO0 km (0 mi) epicenter difference with EMSCSSN (Servicio Sismológico Nacional)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)Aug 17, 2026 07:57 pm (Mexico City)39 minutes ago4.09.6 km0 km - This quakeGuerrero, 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 1,900 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.09 quakes per year (or 1 quake every 11.5 years)Mag. 6 or higher: 0.26 quakes per year (or 1 quake every 3.9 years)Mag. 5 or higher: 2.7 quakes per yearMag. 4 or higher: 118 quakes per year (or 9.8 quakes per month)Mag. 3 or higher: 1,800 quakes per year (or 5 quakes per day)Mag. 2 or higher: 1,900 quakes per year (or 5.2 quakes per day)Mag. 1 or higher: 1,900 quakes per year (or 5.3 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 11 quakes above magnitude 7 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