Moderate magnitude 4.0 earthquake at unknown depth20 Oct 15:14 UTC: First to report: SSN after 30 minutes.20 Oct 15:15: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeOct 20, 2026 14:43:49 UTC - Local time at epicenterTuesday, Oct 20, 2026, at 08:43 am (GMT -6)StatusconfirmedMagnitude4.00Depth10 kmEpicenter latitude / longitude15.576°N / 97.191°WEstado de Oaxaca, MexicoSeismic antipode15.576°S / 82.809°EShaking intensityIV Light shaking near epicenterFelt1 reportPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Weather at epicenter at time of quakeLight Rain 26.3°C (79 F), humidity: 88%, wind: 4 m/s (8 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 energy51 minutes ago reported feltOct 20, 2026 14:43 GMT / Oct 20, 2026 08:43 am (GMT -6)Lat / Lng: 15.576 / -97.191: Offshore Oaxaca, MexicoSource: EMSCOther sources: RaspberryShake: 4.0 / 10 km, SSN: 4.0 / 10 kmDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23451889',15.57600,-97.19100,'51 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 Puerto Escondido, a town with 30,000 inhabitants in Mexico, in 35 km (21 mi) distance north of the epicenter. People likely experienced weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of Mexico, Mexico City, 475 km (295 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(*)RegionCountry33 km (20 mi)NE of epicenterLa Barra de Colotepec(pop: 1,220)III: WeakSanta Maria Colotepec, Estado de OaxacaMexico35 km (21 mi)N of epicenterPuerto Escondido(pop: 29,900)III: WeakSan Pedro Mixtepec -Dto. 22 -, Estado de OaxacaMexico37 km (23 mi)NE of epicenterEl Tomatal(pop: 628)III: WeakSanta Maria Colotepec, Estado de OaxacaMexico45 km (28 mi)N of epicenterSan Jose Manialtepec(pop: 933)III: WeakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico45 km (28 mi)NE of epicenterSanta Maria Colotepec(pop: 1,370)III: WeakSanta Maria Colotepec, Estado de OaxacaMexico45 km (28 mi)N of epicenterEl Cacalote(pop: 763)III: WeakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico47 km (29 mi)NE of epicenterSan Bernardino(pop: 893)III: WeakSanta Maria Tonameca, Estado de OaxacaMexico47 km (29 mi)N of epicenterSan Andres Copala(pop: 840)III: WeakSan Pedro Mixtepec -Dto. 22 -, Estado de OaxacaMexico47 km (29 mi)N of epicenterComuncito(pop: 132)III: WeakSan Pedro Mixtepec -Dto. 22 -, Estado de OaxacaMexico55 km (34 mi)NW of epicenterRio Grande(pop: 12,900)III: WeakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico57 km (35 mi)NE of epicenterSan Francisco Cozoaltepec(pop: 2,120)III: WeakSanta Maria Tonameca, Estado de OaxacaMexico59 km (37 mi)NE of epicenterSan Jose Llano Cieneguilla(pop: 972)II: Very weakSan Sebastian Coatlan, Estado de OaxacaMexico59 km (37 mi)NE of epicenterPaso Ancho(pop: 408)II: Very weakSan Bartolome Loxicha, Estado de OaxacaMexico59 km (37 mi)N of epicenterSantos Reyes Nopala(pop: 5,200)II: Very weakEstado de OaxacaMexico59 km (37 mi)NW of epicenterEl Zapotalito(pop: 980)II: Very weakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico64 km (40 mi)E of epicenterSan Isidro del Palmar(pop: 807)II: Very weakSanta Maria Tonameca, Estado de OaxacaMexico64 km (40 mi)N of epicenterLas Palmas(pop: 650)II: Very weakSan Jeronimo Coatlan, Estado de OaxacaMexico67 km (42 mi)NW of epicenterSantiago Jocotepec(pop: 1,770)II: Very weakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico68 km (42 mi)NE of epicenterSan Bartolome Loxicha(pop: 1,410)II: Very weakSan Bartolome Loxicha, Estado de OaxacaMexico70 km (44 mi)NE of epicenterSan Jose Piedras Negras(pop: 1,140)II: Very weakSanto Domingo de Morelos, Estado de OaxacaMexico72 km (45 mi)NE of epicenterSanta Catarina Loxicha(pop: 3,080)II: Very weakEstado de OaxacaMexico74 km (46 mi)NW of epicenterLa Luz(pop: 2,440)II: Very weakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico74 km (46 mi)N of epicenterSanta Catarina Juquila(pop: 6,220)II: Very weakEstado de OaxacaMexico77 km (48 mi)NW of epicenterSanta Ana Tututepec(pop: 609)II: Very weakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico78 km (48 mi)NW of epicenterEl Azufre(pop: 524)II: Very weakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico79 km (49 mi)NE of epicenterSan Agustin Loxicha(pop: 2,270)II: Very weakSan Agustin Loxicha, Estado de OaxacaMexico79 km (49 mi)NW of epicenterSan Jose del Progreso(pop: 4,110)II: Very weakVilla de Tututepec de Melchor Ocampo, Estado de OaxacaMexico80 km (50 mi)NE of epicenterSan Sebastian Coatlan(pop: 1,260)II: Very weakSan Sebastian Coatlan, Estado de OaxacaMexico80 km (50 mi)E of epicenterSan Pedro Pochutla(pop: 13,700)II: Very weakEstado de OaxacaMexico84 km (52 mi)NE of epicenterCandelaria Loxicha(pop: 2,070)II: Very weakEstado de OaxacaMexico86 km (53 mi)N of epicenterTepenixtlahuaca(pop: 2,550)II: Very weakTataltepec de Valdes, Estado de OaxacaMexico87 km (54 mi)NE of epicenterSan Miguel Coatlan(pop: 1,940)II: Very weakSan Miguel Coatlan, Estado de OaxacaMexico96 km (60 mi)NE of epicenterSan Miguel Suchixtepec(pop: 1,800)II: Very weakEstado de OaxacaMexico101 km (63 mi)NE of epicenterSanto Tomas Tamazulapam(pop: 1,560)II: Very weakSanto Tomas Tamazulapan, Estado de OaxacaMexico104 km (64 mi)NW of epicenterSantiago Jamiltepec(pop: 10,100)II: Very weakEstado de OaxacaMexico105 km (65 mi)NW of epicenterJose Maria Morelos(pop: 2,330)II: Very weakSanta Maria Huazolotitlan, Estado de OaxacaMexico172 km (107 mi)N of epicenterOaxaca(pop: 255,000)II: Very weakEstado de OaxacaMexico475 km (295 mi)NW of epicenterMexico City(pop: 12,294,200)I: Not feltCiudad de MexicoMexico7042 km (4376 mi)E of epicenterAcu(pop: 56,500): Not feltAcu, Rio Grande do NorteBrazilNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quake (1)So far, we have received 1 report for this quake from Mexico.It came from near Mexico City, the capital of Mexico with 12,000,000 inhabitants in Ciudad de Mexico in 475 km (295 mi) distance northwest of the epicenter.This section is being updated as new data comes in.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.Translatelos tamarindos (475.1 km NNW of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / very shortList of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsMexico City, Ciudad de Mexico, Mexico(Pop.: 12,294,193)475 km (295 mi)NW of epicenterIV: Light shaking1Note: Only reports with latitude/longitude coordinate positions given (1 in total) could be used for statistics.What is Intensity and the Mercalli Intensity Scale?The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,...IX, X, and often displayed with color codes ranging from light blue to dark red.Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.Read more about the MMI scale!Get the Android appI didn't feel itI felt this quakeIf you were near the epicenter and felt it, please share your experience and submit a short "I felt it" report! Other users would love to hear about it!If you did NOT feel the quake although you were in the area, please report it as well! Your contribution is valuable to earthquake science and seismic hazard analysis.Compare 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 GMT2026-10-20EpicenterAgency4.010 km6.2 mi(*)14:43:49OFFSHORE OAXACA, MEXICOEMSC (European-Mediterranean Seismological Centre)4.010 km6.2 mi(*)14:43:49Near Coast of Oaxaca, Mexico0 km (0 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.010 km6.2 mi(*)14:43:4934 km al SUROESTE de PUERTO ESCONDIDO, OAX0 km (0 mi) epicenter difference with EMSCSSN (Servicio Sismológico Nacional)Notes:(*) A depth given as 10 km often means that the the depth of the quake could be not determined with sufficient accuracy.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)Oct 20, 2026 08:43 am (GMT -6)51 minutes ago4.010 km0 km - This quakeNorth Pacific Ocean, 35 km S of Puerto Escondido, Estado de Oaxaca, 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 1,100 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.04 quakes per year (or 1 quake every 25.6 years)Mag. 6 or higher: 0.09 quakes per year (or 1 quake every 10.6 years)Mag. 5 or higher: 0.65 quakes per year (or 1 quake every 1.5 years)Mag. 4 or higher: 112 quakes per year (or 9.3 quakes per month)Mag. 3 or higher: 1,100 quakes per year (or 2.9 quakes per day)Mag. 2 or higher: 1,100 quakes per year (or 3 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 5 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 25 to 30 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 2 minutes after a magnitude 4.3 earthquake had hit on Tuesday, Oct 20, 2026, at 08:41 am local time (America/Mexico City GMT -6) in 16.6 km (10 mi) distance to the north:Mag. 4.3 earthquake North Pacific Ocean - 24 km southwest of Puerto Escondido, Mexico -The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 7.2. It had occurred 9 years earlier, on Friday, Feb 16, 2018, at 05:39 pm local time (America/Mexico City GMT -6) in Pinotepa de Don Luis, Mexico:Mag. 7.2 earthquake 9.4 km northeast of Pinotepa Nacional - Estado de Oaxaca, Mexico - Feb 16, 2018 -The strongest-ever (since 1900) recorded quake in this area measured magnitude 7.9. It had occurred 98 years ago earlier, on Sunday, Jun 17, 1928, at 03:19 am local time (Universal Time GMT +0) in Estado de Oaxaca, Mexico:Mag. 7.9 earthquake 47 km southwest of Miahuatlan de Porfirio Diaz - Estado de Oaxaca, Mexico - Jun 17, 1928 -Below is a list and map of larger or recent quakes that had occurred near the epicenter before this earthquake (within up to 100 km/61 mi distance, up to 300 km/183 mi for very large quakes above mag. 7). Filter and sort the list by magnitude or time.Max results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageDate and TimeMagDepthDistanceLocationDetailsMapOct 20, 08:41 am (Mexico City)4.310 km17 km (10.3 mi) to the NNorth Pacific Ocean, 24 km southwest of Puerto Escondido, Mexico I felt it - 4 reportsInfoOct 18, 08:39 am (Mexico City)4.013 km69 km (43 mi) to the NW 56 km southeast of Pinotepa Nacional, Estado de Oaxaca, Mexico I felt itInfoOct 2, 03:43 am (Mexico City)4.231 km62 km (39 mi) to the N 32 km north of Puerto Escondido, Estado de Oaxaca, Mexico 3 reportsInfoOct 1, 02:16 am (Mexico City)4.04.3 km99 km (62 mi) to the NW 26 km southeast of Pinotepa Nacional, Estado de Oaxaca, MexicoInfoSep 18, 07:55 am (Mexico City)4.07.1 km36 km (23 mi) to the NNorth Pacific Ocean, 26 km west of Puerto Escondido, Estado de Oaxaca, MexicoInfoFeb 8, 03:42 pm (Mexico City)5.719 km84 km (52 mi) to the NE 3 km S of San Miguel Coatlán, Mexico 128 reportsInfoApr 3, 2023 08:11 pm (Mexico City)5.431 km60 km (38 mi) to the N 26 km north of Puerto Escondido, Estado de Oaxaca, Mexico 149 reportsInfoJun 23, 2020 03:29 pm (Universal Time)7.110 km176 km (110 mi) to the NE 62 km west of Salina Cruz, Estado de Oaxaca, Mexico 469 reportsInfoFeb 19, 2018 12:56 am (Mexico City)5.922 km98 km (61 mi) to the NW 35 km east of Pinotepa Nacional, Estado de Oaxaca, Mexico 134 reportsInfoFeb 16, 2018 06:36 pm (Mexico City)5.83.5 km97 km (60 mi) to the NW 29 km southeast of Pinotepa Nacional, Estado de Oaxaca, Mexico 28 reportsInfoFeb 16, 2018 05:39 pm (Mexico City)7.222 km123 km (77 mi) to the NW 9.4 km northeast of Pinotepa Nacional, Estado de Oaxaca, Mexico 276 reportsInfoJun 14, 2017 05:58 pm (GMT -6)5.510 km43 km (27 mi) to the S Near Coast of Oaxaca, MexicoInfoMar 20, 2012 12:02 pm (Mexico City)7.420 km151 km (94 mi) to the NW 6.3 km east of Santiago Llano Grande, Estado de Oaxaca, MexicoInfoFeb 8, 2010 06:47 pm (Mexico City)5.740 km50 km (31 mi) to the NE 22 km east of Puerto Escondido, Estado de Oaxaca, MexicoInfoMar 15, 2007 07:13 am (Mexico City)5.313 km55 km (34 mi) to the N 5.9 km southwest of Cerro del Aire, Estado de Oaxaca, MexicoInfoAug 18, 2006 11:41 pm (Mexico City)5.632 km73 km (45 mi) to the N Oaxaca, MexicoInfoJan 13, 2004 03:28 pm (Mexico City)5.528 km65 km (40 mi) to the NE 44 km southwest of Miahuatlan de Porfirio Diaz, Estado de Oaxaca, MexicoInfoJun 7, 2002 11:00 am (Mexico City)5.633 km76 km (47 mi) to the NE 30 km southwest of Miahuatlan de Porfirio Diaz, Estado de Oaxaca, MexicoInfoJun 7, 2002 11:02 am (Mexico City)5.333 km77 km (48 mi) to the NE 6 km E of Santa Catarina Loxicha, MexicoInfoSep 30, 1999 10:31 am (Mexico City)7.561 km60 km (38 mi) to the NE 26 km northeast of Puerto Escondido, Estado de Oaxaca, MexicoInfoApr 4, 1999 04:37 am (Mexico City)5.433 km60 km (37 mi) to the N Oaxaca, MexicoInfoMar 20, 1996 12:08 pm (Mexico City)5.333 km45 km (28 mi) to the N Oaxaca, MexicoInfoMar 19, 1996 10:53 pm (Mexico City)5.433 km43 km (27 mi) to the N 13 km SW of Santiago Cuixtla, MexicoInfoMar 19, 1996 11:12 am (Mexico City)5.933 km33 km (20 mi) to the N 21 km WSW of Bajos De Chila, MexicoInfoFeb 25, 1996 07:37 pm (Mexico City)5.533 km77 km (48 mi) to the NW 21 km SSW of San José Del Progreso, MexicoInfoFeb 25, 1996 03:17 am (Mexico City)6.212 km100 km (62 mi) to the NW 28 km southeast of Pinotepa Nacional, Estado de Oaxaca, MexicoInfoFeb 24, 1996 08:08 pm (Mazatlan)7.121 km104 km (65 mi) to the NWNorth Pacific Ocean, 40 km south of Pinotepa Nacional, Estado de Oaxaca, MexicoInfoSep 14, 1995 08:04 am (Mexico City)7.423 km201 km (125 mi) to the NW 5 km N of Azoyú, MexicoInfoJul 4, 1994 03:36 pm (GMT -6)6.515 km78 km (48 mi) to the S off the coast of Oaxaca, MexicoInfoDec 13, 1984 02:10 am (Mexico City)5.544 km101 km (62 mi) to the NE 20 km southeast of Miahuatlan de Porfirio Diaz, Estado de Oaxaca, MexicoInfoJun 7, 1982 04:59 am (Mexico City)7.034 km166 km (103 mi) to the NW 16 km south of Ometepec, Estado de Guerrero, MexicoInfoJul 21, 1959 05:29 am (Mazatlan)5.920 km101 km (63 mi) to the NW offshore Oaxaca, MexicoInfoJul 28, 1957 02:40 am (Mexico City)7.638 km261 km (162 mi) to the NW Guerrero, MexicoInfoApr 9, 1957 10:12 pm (GMT -7)6.015 km97 km (60 mi) to the W offshore Oaxaca, MexicoInfoMay 15, 1946 10:10 pm (Universal Time)6.315 km66 km (41 mi) to the ENorth Pacific Ocean, 63 km southeast of Puerto Escondido, MexicoInfoNov 2, 1931 12:32 am (Universal Time)6.435 km98 km (61 mi) to the NE 7.5 km southwest of Miahuatlan de Porfirio Diaz, Estado de Oaxaca, MexicoInfoJul 17, 1931 09:13 am (Universal Time)6.035 km72 km (45 mi) to the NE 6 km NW of San Baltazar Loxicha, MexicoInfoMay 16, 1931 08:47 pm (Universal Time)6.025 km102 km (64 mi) to the N 10 km WSW of Villa Sola De Vega, MexicoInfoJan 15, 1931 01:50 am (Universal Time)7.635 km92 km (57 mi) to the NE 33 km south of Miahuatlan de Porfirio Diaz, Estado de Oaxaca, MexicoInfoOct 9, 1928 03:01 am (Universal Time)7.525 km78 km (48 mi) to the N 13 km northeast of Santa Maria Acatepec, Estado de Oaxaca, MexicoInfoJun 17, 1928 03:19 am (Universal Time)7.920 km60 km (38 mi) to the NE 47 km southwest of Miahuatlan de Porfirio Diaz, Estado de Oaxaca, MexicoInfoApr 16, 1928 04:26 pm (Mexico City)7.80 km242 km (150 mi) to the N 86 km northwest of Oaxaca, Estado de Oaxaca, MexicoInfoDec 29, 1917 10:50 pm (Universal Time)7.120 km47 km (29 mi) to the ENorth Pacific Ocean, 71 km west of Crucecita, Estado de Oaxaca, MexicoInfoJul 30, 1909 10:51 am (Universal Time)7.520 km269 km (167 mi) to the WNorth Pacific Ocean, 59 km southeast of Acapulco de Juárez, MexicoInfoApr 15, 1907 06:08 am (Universal Time)7.830 km115 km (71 mi) to the N 2.8 km northwest of Santo Domingo Teojomulco, Estado de Oaxaca, MexicoInfoJan 13, 1903 06:47 pm (GMT -7)7.70 km108 km (67 mi) to the SWNorth Pacific Ocean, 267 km southwest of Oaxaca, Estado de Oaxaca, MexicoInfoMap of earlier quakes in the area of this quakeMax results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageOldest quakes are shown in yellow, most recent in red.[quakes -][quakes +][smaller][bigger]