(Unconfirmed) Moderate magnitude 4.5 earthquake at 113 km depth30 Sep 04:00 UTC: First to report: VolcanoDiscovery after 4 minutes.30 Sep 04:20: Now using data updates from RaspberryShakeI didn't feel itI felt this quakeEarthquake detailsDate & timeSep 30, 2025 03:56:01 UTC - Local time at epicenterTuesday, Sep 30, 2025, at 03:56 am (Universal Time GMT +0)Statusunconfirmed (automatic detection)Magnitude4.5Depth113 kmEpicenter latitude / longitude16.597°N / 94.286°WSan Miguel Chimalapa, Estado de Oaxaca, MexicoSeismic antipode16.597°S / 85.714°EShaking intensityIII Weak shaking near epicenterFelt3 reportsPrimary data sourceRaspberryShake (RaspberryShake)Nearest volcanoEl Chichón (2 km / 1 mi)Weather at epicenter at time of quakeLight Rain 22.4°C (72 F), humidity: 91%, wind: 2 m/s (4 kts) from NWEstimated seismic energy released3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | equivalent to ONE quake of magnitude 4.5 | about seismic energy25 minutes ago reported feltSep 30, 2025 03:56 GMT / Sep 30, 2025 03:56 am (Universal Time)Lat / Lng: 16.597 / -94.286: Oaxaca, MexicoSource: RaspberryShakeDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-22217798',16.59700,-94.28600,'25 minutes ago: Mag. 4.5, 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 Juchitan de Zaragoza, a town with 75,000 inhabitants in Mexico, in 80 km (50 mi) distance west 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, 601 km (374 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(*)RegionCountry12 km (7 mi)NE of epicenterSan Antonio(pop: 359)III: WeakSan Miguel Chimalapa, Estado de OaxacaMexico14 km (9 mi)SW of epicenterSanto Domingo Zanatepec(pop: 7,250)III: WeakEstado de OaxacaMexico18 km (11 mi)S of epicenterGeneral Pascual Fentes(pop: 1,080)III: WeakSanto Domingo Zanatepec, Estado de OaxacaMexico26 km (16 mi)SE of epicenterNueva Tenochtitlan (Rizo de Oro)(pop: 1,640)II: Very weakCintalapa, Estado de ChiapasMexico32 km (20 mi)SE of epicenterEl Espinal(pop: 7,620)II: Very weakEstado de OaxacaMexico35 km (21 mi)SW of epicenterSan Francisco Ixhuatan(pop: 5,410)II: Very weakSan Francisco Ixhuatan, Estado de OaxacaMexico35 km (22 mi)W of epicenterNiltepec(pop: 3,290)II: Very weakEstado de OaxacaMexico36 km (22 mi)S of epicenterChahuites(pop: 10,800)II: Very weakEstado de OaxacaMexico40 km (25 mi)E of epicenterVillamorelos(pop: 1,680)II: Very weakCintalapa, Estado de ChiapasMexico44 km (27 mi)SW of epicenterLas Amilpas(pop: 8,800)II: Very weakSan Dionisio del Mar, Estado de OaxacaMexico45 km (28 mi)E of epicenterPomposo Castellanos(pop: 1,490)II: Very weakCintalapa, Estado de ChiapasMexico48 km (30 mi)SE of epicenterLazaro Cardenas(pop: 1,170)II: Very weakArriaga, Estado de ChiapasMexico49 km (30 mi)SE of epicenterLos Corazones(pop: 1,100)II: Very weakEstado de OaxacaMexico50 km (31 mi)SE of epicenterTiltepec(pop: 2,010)II: Very weakJiquipilas, Estado de ChiapasMexico51 km (32 mi)W of epicenterSan Miguel Chimalapa(pop: 1,440)II: Very weakEstado de OaxacaMexico53 km (33 mi)E of epicenterEmiliano Zapata(pop: 1,510)II: Very weakCintalapa, Estado de ChiapasMexico54 km (34 mi)NW of epicenterSanta Maria Chimalapa(pop: 2,540)II: Very weakSanta Maria Chimalapa, Estado de OaxacaMexico55 km (34 mi)SW of epicenterSan Francisco del Mar Viejo(pop: 4,030)II: Very weakSan Francisco del Mar, Estado de OaxacaMexico57 km (35 mi)W of epicenterLa Venta(pop: 2,160)II: Very weakHeroica de Juchitan de Zaragoza, Estado de OaxacaMexico58 km (36 mi)SE of epicenterArriaga(pop: 24,400)II: Very weakEstado de ChiapasMexico59 km (37 mi)SW of epicenterSan Dionisio del Mar(pop: 3,140)II: Very weakEstado de OaxacaMexico59 km (37 mi)E of epicenterJose Maria Pino Suarez(pop: 2,090)II: Very weakJiquipilas, Estado de ChiapasMexico60 km (37 mi)W of epicenterUnion Hidalgo(pop: 13,700)II: Very weakUnion Hidalgo, Estado de OaxacaMexico61 km (38 mi)NE of epicenterFrancisco I. Madero(pop: 1,440)II: Very weakCintalapa, Estado de ChiapasMexico61 km (38 mi)E of epicenterCintalapa de Figueroa(pop: 42,500)II: Very weakCintalapa, Estado de ChiapasMexico63 km (39 mi)W of epicenterLazaro Cardenas(pop: 1,380)II: Very weakAsuncion Ixtaltepec, Estado de OaxacaMexico69 km (43 mi)N of epicenterLa Horqueta (Poblado Doce)(pop: 1,490)II: Very weakUxpanapa, Estado de Veracruz-LlaveMexico70 km (44 mi)E of epicenterNueva Palestina(pop: 1,120)II: Very weakJiquipilas, Estado de ChiapasMexico71 km (44 mi)W of epicenterLa Ventosa(pop: 4,880)II: Very weakHeroica de Juchitan de Zaragoza, Estado de OaxacaMexico74 km (46 mi)N of epicenterHelio Garcia Alfaro(pop: 1,630)II: Very weakUxpanapa, Estado de Veracruz-LlaveMexico75 km (47 mi)E of epicenterVicente Guerrero(pop: 1,380)II: Very weakJiquipilas, Estado de ChiapasMexico75 km (47 mi)SE of epicenterParedon(pop: 6,130)II: Very weakTonala, Estado de ChiapasMexico78 km (48 mi)N of epicenterPoblado 10(pop: 3,320)II: Very weakUxpanapa, Estado de Veracruz-LlaveMexico80 km (50 mi)SE of epicenterTonala(pop: 35,300)II: Very weakTonala, Estado de ChiapasMexico80 km (50 mi)W of epicenterJuchitan de Zaragoza(pop: 74,800)II: Very weakHeroica de Juchitan de Zaragoza, Estado de OaxacaMexico85 km (53 mi)NW of epicenterCuauhtemoc(pop: 2,260)II: Very weakMatias Romero Avendano, Estado de OaxacaMexico86 km (53 mi)SW of epicenterSan Mateo del Mar(pop: 5,730)II: Very weakEstado de OaxacaMexico98 km (61 mi)NE of epicenterRaudales Malpaso(pop: 6,820)II: Very weakTecpatan, Estado de ChiapasMexico265 km (164 mi)W of epicenterOaxaca(pop: 255,000)II: Very weakEstado de OaxacaMexico601 km (374 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 quake (3)The first report about ground shaking reached us after only 4 minutes, before other agencies reported it. So far, we have received 3 reports for this quake from Mexico. The quake was reported to have been felt in up to approx. 130 km (81 mi) distance, with isolated cases to have felt the quake even 130 km (81 mi) away.Most reports came from Tuxtla (3 reports), a city with more than 600,000 inhabitants in Estado de Chiapas in 126 km (78 mi) distance east of the epicenter, Mexico. Further below is a list of places where most people reported this quake.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.Contribute:Leave a comment if you find a particular report interesting or want to add to it.Flag as inappropriate.Mark as helpful or interesting.Send your own user report!TranslateTuxtla gutiérrez (130.2 km E of epicenter) [Map] / Very weak shaking (MMI II) : Aaaaaa Tuxtla Gutiérrez Chiapas (130.3 km E of epicenter) [Map] / Weak shaking (MMI III) : Temblor tuxtla gutiérrez, chispas (128.2 km E of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s : the bed was moving and the felling was like someone pushing it List of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsTuxtla, Estado de Chiapas, Mexico(Pop.: 604,147)126 km (78 mi)E of epicenterII: Very weak shaking3Note: Only reports with latitude/longitude coordinate positions given (3 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!Number of reports by intensityShaking intensityNumber of reportsMin-Max distance from epicenter (*)Average distance (*)II: Very weak shaking2128–130 km (80–81 mi)129 km (80 mi)III: Weak shaking1130–130 km (81–81 mi)130 km (81 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (3 in total) could be used for geographic statistics.I 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 GMT2025-09-30EpicenterAgency4.5113 km70 mi03:56:01Oaxaca, MexicoRaspberryShake (RaspberryShake)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 3 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 3 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Sep 30, 2025 03:56 am (Universal Time)25 minutes ago - felt4.5113 km0 km - This quakeEstado de Oaxaca, 126 km W of Tuxtla, Estado de Chiapas, MexicoMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 25 years and our earthquake archive back to 1900, there are about 1,300 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.11 quakes per year (or 1 quake every 9.3 years)Mag. 5 or higher: 1.66 quakes per yearMag. 4 or higher: 246 quakes per year (or 20.5 quakes per month)Mag. 3 or higher: 1,300 quakes per year (or 3.5 quakes per day)Mag. 2 or higher: 1,300 quakes per year (or 3.6 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 14 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