Moderate mag. 4.0 earthquake - 40 km southeast of Tandag, Province of Surigao del Sur, Caraga, Philippines, on Wednesday, Oct 1, 2025, at 03:51 am (GMT +8)

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Moderate magnitude 4.0 earthquake at unknown depth30 Sep 20:00 UTC: First to report: PHIVOLCS after 10 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeSep 30, 2025 19:51:00 UTC - Local time at epicenter01 October 2025 - 03:51 AM (PST)Statuspreliminary (automatic detection)Magnitude4.0Depth10 kmEpicenter latitude / longitude8.84°N / 126.47°ESurigao del Sur, Caraga, PhilippinesSeismic antipode8.84°S / 53.53°WShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourcePHIVOLCS (Philippine Institute of Volcanology and Seismology)Nearest volcanoPaco (134 km / 83 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 energy10 minutes agoSep 30, 2025 19:51 GMT / 01 October 2025 - 03:51 AM (PST)Lat / Lng: 8.84 / 126.47: Philippines: 019 km N 76° E of Marihatag (Surigao Del Sur)Source: PHIVOLCSDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22221484',8.84000,126.47000,'10 minutes ago: Mag. 4.0, Philippines: 019 km N 76° E of Marihatag (Surigao Del Sur)',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+="&notFelt=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 PhilippinesNearby placesThe closest larger town where the quake might have been felt is Bislig, a town with 68,000 inhabitants in the Philippines, in 72 km (44 mi) distance south 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 the  Philippines, Manila, 876 km (545 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(*)RegionCountry18 km (11 mi)W of epicenterAras-asan(pop: 5,100)III: WeakProvince of Surigao del Sur, CaragaPhilippines28 km (17 mi)NW of epicenterLa Paz(pop: 2,310)III: WeakProvince of Surigao del Sur, CaragaPhilippines32 km (20 mi)SW of epicenterSalvacion(pop: 2,090)III: WeakProvince of Surigao del Sur, CaragaPhilippines40 km (25 mi)NW of epicenterTandag(pop: 29,000)III: WeakProvince of Surigao del Sur, CaragaPhilippines43 km (26 mi)SW of epicenterGamut(pop: 3,480)III: WeakProvince of Surigao del Sur, CaragaPhilippines47 km (29 mi)SW of epicenterLianga(pop: 13,600)III: WeakProvince of Surigao del Sur, CaragaPhilippines51 km (32 mi)SW of epicenterBarobo(pop: 9,890)III: WeakProvince of Surigao del Sur, CaragaPhilippines54 km (34 mi)S of epicenterHinatuan(pop: 10,100)III: WeakProvince of Surigao del Sur, CaragaPhilippines54 km (34 mi)SW of epicenterTagbina(pop: 10,700)III: WeakProvince of Surigao del Sur, CaragaPhilippines57 km (35 mi)NW of epicenterBurgos(pop: 3,510)III: WeakProvince of Surigao del Sur, CaragaPhilippines59 km (37 mi)W of epicenterSan Miguel(pop: 2,980)II: Very weakProvince of Surigao del Sur, CaragaPhilippines66 km (41 mi)NW of epicenterCarmen(pop: 2,810)II: Very weakProvince of Surigao del Sur, CaragaPhilippines66 km (41 mi)SW of epicenterBah-Bah(pop: 28,600)II: Very weakProvince of Agusan del Sur, CaragaPhilippines66 km (41 mi)SW of epicenterSan Francisco(pop: 18,500)II: Very weakProvince of Agusan del Sur, CaragaPhilippines71 km (44 mi)SW of epicenterLapinigan(pop: 4,330)II: Very weakProvince of Agusan del Sur, CaragaPhilippines72 km (44 mi)S of epicenterBislig(pop: 67,600)II: Very weakProvince of Surigao del Sur, CaragaPhilippines76 km (47 mi)S of epicenterBarcelona(pop: 3,540)II: Very weakProvince of Surigao del Sur, CaragaPhilippines77 km (48 mi)NW of epicenterCantilan(pop: 9,410)II: Very weakProvince of Surigao del Sur, CaragaPhilippines78 km (48 mi)W of epicenterBayugan(pop: 40,600)II: Very weakProvince of Agusan del Sur, CaragaPhilippines87 km (54 mi)SW of epicenterTalacogon(pop: 15,600)II: Very weakProvince of Agusan del Sur, CaragaPhilippines89 km (55 mi)NW of epicenterAdlay(pop: 2,550)II: Very weakProvince of Surigao del Sur, CaragaPhilippines92 km (57 mi)SW of epicenterBunawan(pop: 15,500)II: Very weakProvince of Agusan del Sur, CaragaPhilippines97 km (60 mi)SW of epicenterLa Paz(pop: 3,620)II: Very weakProvince of Agusan del Sur, CaragaPhilippines99 km (62 mi)SW of epicenterLoreto(pop: 5,730)II: Very weakProvince of Agusan del Sur, CaragaPhilippines102 km (64 mi)W of epicenterButuan(pop: 309,700)II: Very weakProvince of Agusan del Norte, CaragaPhilippines876 km (545 mi)NW of epicenterManila(pop: 1,600,000): Not feltCapital, National Capital RegionPhilippinesNotes:(*) 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!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 GMT2025-09-30EpicenterAgency4.010 km6.2 mi(*)19:51:00019 km N 76° E of Marihatag (Surigao Del Sur)PHIVOLCS (Philippine Institute of Volcanology and Seismology)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)01 October 2025 - 03:51 AM (PST)10 minutes ago4.010 km0 km - This quakePhilippines: 019 km N 76° E of Marihatag (Surigao Del Sur)Main 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 2,300 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.07 quakes per year (or 1 quake every 13.9 years)Mag. 6 or higher: 0.63 quakes per year (or 1 quake every 1.6 years)Mag. 5 or higher: 10.4 quakes per yearMag. 4 or higher: 166 quakes per year (or 13.9 quakes per month)Mag. 3 or higher: 489 quakes per year (or 41 quakes per month)Mag. 2 or higher: 1,800 quakes per year (or 4.8 quakes per day)Mag. 1 or higher: 2,300 quakes per year (or 6.4 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 9 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 earthquakeLat / Lng: 8.84 / 126.47: Philippines: 019 km N 76° E of Marihatag (Surigao Del Sur)Lat / Lng: 8.84 / 126.47: Philippines: 019 km N 76° E of Marihatag (Surigao Del Sur)