Moderate magnitude 4.0 earthquake at 50 km depth28 Feb 09:35 UTC: First to report: SSN after 13 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeFeb 28, 2026 09:21:52 UTC - Local time at epicenter2026-02-28 03:21:52 (Hora de México)Statuspreliminary (automatic detection)Magnitude4.0Depth50 kmEpicenter latitude / longitude17.183°N / 99.603°WJuan R. Escudero, Estado de Guerrero, MexicoSeismic antipode17.183°S / 80.397°EShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceSSN (Servicio Sismológico Nacional)Nearest volcanoNevado de Toluca (215 km / 134 mi)Estimated 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 energy14 minutes agoFeb 28, 2026 09:21 GMT / 2026-02-28 03:21:52 (Hora de México)Lat / Lng: 17.183 / -99.603: Mexico: 42 km Al SUR De CHILPANCINGO, GROSource: SSNDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22760489',17.18300,-99.60300,'14 minutes ago: Mag. 4.0, Mexico: 42 km Al SUR De CHILPANCINGO, GRO',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 Acapulco de Juárez, a city with more than 660,000 inhabitants in Mexico, in 49 km (31 mi) distance southwest 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, 255 km (158 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 epicenterXolapa(pop: 959)III: WeakAcapulco de Juarez, Estado de GuerreroMexico8 km (5 mi)E of epicenterTierra Colorada(pop: 11,500)III: WeakJuan R. Escudero, Estado de GuerreroMexico14 km (9 mi)NE of epicenterBuena Vista de la Salud(pop: 2,230)III: WeakChilpancingo de los Bravo, Estado de GuerreroMexico15 km (9 mi)SW of epicenterXaltianguis(pop: 6,970)III: WeakAcapulco de Juarez, Estado de GuerreroMexico18 km (11 mi)N of epicenterCoacoyulillo(pop: 1,770)III: WeakChilpancingo de los Bravo, Estado de GuerreroMexico19 km (12 mi)S of epicenterDos Arroyos(pop: 1,850)III: WeakAcapulco de Juarez, Estado de GuerreroMexico25 km (15 mi)SE of epicenterLas Mesas(pop: 2,690)III: WeakSan Marcos, Estado de GuerreroMexico28 km (17 mi)N of epicenterEl Fresno(pop: 1,110)III: WeakChilpancingo de los Bravo, Estado de GuerreroMexico28 km (17 mi)SW of epicenterKilometro 30(pop: 6,300)III: WeakAcapulco de Juarez, Estado de GuerreroMexico28 km (17 mi)E of epicenterEl Terrero(pop: 1,060)III: WeakJuan R. Escudero, Estado de GuerreroMexico32 km (20 mi)NE of epicenterMazatlan(pop: 5,320)III: WeakChilpancingo de los Bravo, Estado de GuerreroMexico33 km (20 mi)S of epicenterBarrio Nuevo de los Muertos(pop: 1,170)III: WeakAcapulco de Juarez, Estado de GuerreroMexico34 km (21 mi)SE of epicenterXalpatlahuac(pop: 3,670)II: Very weakTecoanapa, Estado de GuerreroMexico37 km (23 mi)SE of epicenterOcotlan(pop: 1,250)II: Very weakTecoanapa, Estado de GuerreroMexico37 km (23 mi)W of epicenterSan Cristobal(pop: 1,080)II: Very weakChilpancingo de los Bravo, Estado de GuerreroMexico38 km (23 mi)N of epicenterSan Vicente(pop: 1,890)II: Very weakChilpancingo de los Bravo, Estado de GuerreroMexico40 km (25 mi)NW of epicenterJaleaca de Catalan(pop: 2,500)II: Very weakChilpancingo de los Bravo, Estado de GuerreroMexico40 km (25 mi)E of epicenterXochitepec(pop: 1,360)II: Very weakQuechultenango, Estado de GuerreroMexico41 km (25 mi)NE of epicenterMochitlan(pop: 5,270)II: Very weakMochitlan, Estado de GuerreroMexico41 km (25 mi)W of epicenterTixtlancingo(pop: 3,640)II: Very weakCoyuca de Benitez, Estado de GuerreroMexico41 km (25 mi)S of epicenterAmatillo(pop: 3,300)II: Very weakAcapulco de Juarez, Estado de GuerreroMexico42 km (26 mi)N of epicenterChilpancingo(pop: 187,300)II: Very weakEstado de GuerreroMexico43 km (27 mi)SW of epicenterTres Palos(pop: 5,000)II: Very weakAcapulco de Juarez, Estado de GuerreroMexico44 km (28 mi)E of epicenterColotepec(pop: 2,810)II: Very weakTecoanapa, Estado de GuerreroMexico46 km (29 mi)NE of epicenterQuechultenango(pop: 5,720)II: Very weakEstado de GuerreroMexico46 km (29 mi)SW of epicenterBajos del Ejido(pop: 6,170)II: Very weakCoyuca de Benitez, Estado de GuerreroMexico48 km (30 mi)NE of epicenterTixtla de Guerrero(pop: 22,800)II: Very weakEstado de GuerreroMexico48 km (30 mi)SE of epicenterSan Marcos(pop: 13,300)II: Very weakEstado de GuerreroMexico49 km (31 mi)SW of epicenterAcapulco de Juárez(pop: 658,600)II: Very weakEstado de GuerreroMexico53 km (33 mi)N of epicenterZumpango del Rio(pop: 24,700)II: Very weakEduardo Neri, Estado de GuerreroMexico54 km (33 mi)N of epicenterChichihualco(pop: 10,700)II: Very weakLeonardo Bravo, Estado de GuerreroMexico55 km (34 mi)W of epicenterTepetixtla(pop: 3,640)II: Very weakCoyuca de Benitez, Estado de GuerreroMexico55 km (34 mi)W of epicenterCoyuca de Benitez(pop: 13,600)II: Very weakCoyuca de Benitez, Estado de GuerreroMexico57 km (35 mi)NE of epicenterAyahualulco(pop: 3,990)II: Very weakChilapa de Alvarez, Estado de GuerreroMexico59 km (37 mi)SE of epicenterAyutla de los Libres(pop: 15,400)II: Very weakEstado de GuerreroMexico62 km (38 mi)SE of epicenterLas Vigas(pop: 4,500)II: Very weakSan Marcos, Estado de GuerreroMexico65 km (40 mi)NE of epicenterChilapa de Alvarez(pop: 31,200)II: Very weakChilapa de Alvarez, Estado de GuerreroMexico72 km (45 mi)NE of epicenterZitlala(pop: 6,070)II: Very weakEstado de GuerreroMexico72 km (45 mi)SE of epicenterCruz Grande(pop: 11,800)II: Very weakFlorencio Villarreal, Estado de GuerreroMexico255 km (158 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 GMT2026-02-28EpicenterAgency4.050 km31 mi09:21:5242 km al SUR de CHILPANCINGO, GROSSN (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)2026-02-28 03:21:52 (Hora de México)14 minutes ago4.050 km0 km - This quakeEstado de Guerrero, MexicoMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 56 years and our earthquake archive back to 1900, there are about 1,200 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.05 quakes per year (or 1 quake every 20.8 years)Mag. 6 or higher: 0.18 quakes per year (or 1 quake every 5.6 years)Mag. 5 or higher: 1.32 quakes per yearMag. 4 or higher: 95 quakes per year (or 8 quakes per month)Mag. 3 or higher: 1,100 quakes per year (or 2.9 quakes per day)Mag. 2 or higher: 1,200 quakes per year (or 3.3 quakes per day)Mag. 1 or higher: 1,200 quakes per year (or 3.3 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 6 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 20 to 25 years.Number of quakes per yearPrevious quakes in the same area of this earthquake