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The depth of the quake could not be determined, but is assumed to be shallow.The quake was not felt (or at least not reported so).Quake Data | Interactive map | User reports | Aftershocks | Earlier quakes here | Quakes in India | Quakes in Indonesia | Quakes in Thailand | Quakes in Myanmar | Union Territory of Andaman and Nicobar Islands | Nanggroe Aceh Darussalam Province | Changwat PhangngaHint: Click on the image to see different maps of this quake!Moderate magnitude 4.9 earthquake at unknown depth29 Jul 16:29 UTC: First to report: BMKG after 5 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 29, 2025 16:24:21 UTC - Local time at epicenterTuesday, Jul 29, 2025, at 04:24 pm (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude4.9Depth10 kmEpicenter latitude / longitude9.78°N / 93.63°EIndiaSeismic antipode9.78°S / 86.37°WShaking intensityV Moderate shaking near epicenterFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Estimated seismic energy released1.4 x 1012 joules (392 megawatt hours, equivalent to 338 tons of TNT) | equivalent to ONE quake of magnitude 4.9 | about seismic energy5 minutes agoJul 29, 2025 16:24 GMT / Jul 29, 2025 04:24 pm (Universal Time)Lat / Lng: 9.78 / 93.63: Nicobar Islands, India RegionSource: BMKGDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22002964',9.78000,93.63000,'5 minutes ago: Mag. 4.9, Nicobar Islands, India Region',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 IndiaNearby placesThe closest larger town where the quake might have been felt is Port Blair, a city with more than 110,000 inhabitants in India, in 231 km (144 mi) distance northwest of the epicenter. People likely experienced very weak shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry231 km (144 mi)NW of epicenterPort Blair(pop: 112,100)II: Very weakSouth Andaman, Union Territory of Andaman and Nicobar IslandsIndia236 km (146 mi)NW of epicenterBamboo Flat(pop: 7,410)II: Very weakUnion Territory of Andaman and Nicobar IslandsIndia471 km (293 mi)SE of epicenterSabang(pop: 42,100)II: Very weakNanggroe Aceh Darussalam ProvinceIndonesia507 km (315 mi)S of epicenterBanda Aceh(pop: 255,000)I: Not feltNanggroe Aceh Darussalam ProvinceIndonesia522 km (325 mi)E of epicenterKhao Lak(pop: 1,700)I: Not feltAmphoe Thai Mueang, Changwat PhangngaThailand540 km (335 mi)E of epicenterKawthoung(pop: 57,900)I: Not feltKawthaung, Tanintharyi RegionMyanmar546 km (339 mi)E of epicenterBan Mai Khao(pop: 5,000)I: Not feltAmphoe Thalang, PhuketThailand549 km (341 mi)E of epicenterRanong(pop: 24,600)I: Not feltChangwat RanongThailand550 km (342 mi)E of epicenterBan Kamala(pop: 22,300)I: Not feltKathu, PhuketThailand552 km (343 mi)SE of epicenterSigli(pop: 17,500)I: Not feltKabupaten Pidie, Nanggroe Aceh Darussalam ProvinceIndonesia554 km (344 mi)E of epicenterPatong(pop: 14,800)I: Not feltKathu, PhuketThailand557 km (346 mi)E of epicenterKathu(pop: 34,800)I: Not feltPhuketThailand558 km (347 mi)E of epicenterPhang Nga(pop: 9,680)I: Not feltChangwat PhangngaThailand561 km (348 mi)E of epicenterChalong(pop: 18,100)I: Not feltAmphoe Mueang Phuket, PhuketThailand562 km (349 mi)E of epicenterRawai(pop: 13,600)I: Not feltAmphoe Mueang Phuket, PhuketThailand563 km (350 mi)E of epicenterKo Kaeo(pop: 10,100)I: Not feltAmphoe Mueang Phuket, PhuketThailand563 km (350 mi)E of epicenterWichit(pop: 38,700)I: Not feltAmphoe Mueang Phuket, PhuketThailand564 km (350 mi)E of epicenterBan Talat Nua(pop: 23,400)I: Not feltAmphoe Mueang Phuket, PhuketThailand564 km (351 mi)E of epicenterBan Ratsada(pop: 33,500)I: Not feltAmphoe Mueang Phuket, PhuketThailand565 km (351 mi)E of epicenterPhuket(pop: 79,300)I: Not feltPhuketThailand565 km (351 mi)E of epicenterTalat Yai(pop: 52,200)I: Not feltAmphoe Mueang Phuket, PhuketThailand574 km (357 mi)E of epicenterBan Nam Yuen(pop: 12,300)I: Not feltAmphoe Phato, Changwat ChumphonThailand580 km (361 mi)E of epicenterAo Luek(pop: 9,630)I: Not feltChangwat KrabiThailand582 km (361 mi)E of epicenterBan Phru Nai(pop: 5,710)I: Not feltAmphoe Ko Yao, Changwat PhangngaThailand586 km (364 mi)SE of epicenterReuleuet(pop: 40,400)I: Not feltKabupaten Pidie Jaya, Nanggroe Aceh Darussalam ProvinceIndonesia590 km (367 mi)E of epicenterTha Khanon(pop: 7,300)I: Not feltAmphoe Khiri Rat Nikhom, Changwat Surat ThaniThailand597 km (371 mi)E of epicenterLang Suan(pop: 16,100)I: Not feltChangwat ChumphonThailand601 km (373 mi)E of epicenterBan Ao Nang(pop: 8,000)I: Not feltAmphoe Mueang Krabi, Changwat KrabiThailand609 km (378 mi)E of epicenterPhi Phi Don(pop: 1000)I: Not feltAmphoe Mueang Krabi, Changwat KrabiThailand611 km (379 mi)E of epicenterKrabi(pop: 31,200)I: Not feltChangwat KrabiThailand611 km (380 mi)SE of epicenterBireun(pop: 47,700)I: Not feltKabupaten Bireuen, Nanggroe Aceh Darussalam ProvinceIndonesia616 km (383 mi)E of epicenterChai Buri(pop: 6,130)I: Not feltChangwat Surat ThaniThailand618 km (384 mi)NE of epicenterMyeik(pop: 173,300)I: Not feltTanintharyi RegionMyanmar620 km (385 mi)E of epicenterNuea Khlong(pop: 12,200)I: Not feltChangwat KrabiThailand641 km (399 mi)E of epicenterSaladan(pop: 7,950)I: Not feltAmphoe Ko Lanta, Changwat KrabiThailand642 km (399 mi)SE of epicenterLhokseumawe(pop: 196,100)I: Not feltNanggroe Aceh Darussalam ProvinceIndonesia650 km (404 mi)E of epicenterKo Lanta(pop: 6,090)I: Not feltChangwat KrabiThailand689 km (428 mi)NE of epicenterDawei(pop: 136,800)I: Not feltTanintharyi RegionMyanmar760 km (472 mi)SE of epicenterLangsa(pop: 194,700)I: Not feltNanggroe Aceh Darussalam ProvinceIndonesia795 km (494 mi)NE of epicenterSangkhla Buri(pop: 10,000)I: Not feltChangwat KanchanaburiThailandNotes:(*) 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 GMT2025-07-29EpicenterAgency4.910 km6.2 mi(*)16:24:21Nicobar Islands, India RegionBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)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 8 km2 (3 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 5 km (3 mi).[More info]Recorded aftershocks, latest first (0 quake)Jul 29, 2025 04:24 pm (Universal Time)5 minutes ago4.910 km0 km - This quakeNicobar Islands, India RegionMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake5 minutes agoJul 29, 2025 16:24 GMT / Jul 29, 2025 04:24 pm (Universal Time)Lat / Lng: 9.78 / 93.63: Nicobar Islands, India RegionSource: BMKGDetail info | You felt it? - Report it!',4.9,49, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',9.78,93.63,'5 minutes ago: Mag. 4.9, Nicobar Islands, India Region','Earthquake: Mag 4.9 / 10 km (6.2 mi) depth5 minutes agoJul 29, 2025 16:24 GMT / Jul 29, 2025 04:24 pm (Universal Time)Lat / Lng: 9.78 / 93.63: Nicobar Islands, India RegionSource: BMKGDetail info | You felt it? - Report it!','default'); // this will be local to this table obj function putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex) { qTableOlder.putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex); } map2.circleScale=0.5;qTableOlder.usePalette=1;qTableOlder.startVal=qTableOlder.referenceTime-(80*365.25*86400);qTableOlder.endVal=qTableOlder.referenceTime; qTableOlder.assignMap(map2); (async function(){await new Promise(r => setTimeout(r,4000));map2.map.setZoom(7)})(); })(); (async function(){while(typeof mkRequest=="undefined")await new Promise(r=>setTimeout(r,500));mkRequest("https://server2.allquakes.com/api/getPrevious.php?quakeId=22002964","get","",function(httpObj){let r=httpObj.responseText,d=document;if(""!=r&&200==httpObj.status){let o=JSON.parse(r);if(!o){d.getElementById("olderQuakesSection").remove();return};let table=d.getElementById("qTableOlder");table.innerHTML+=o.tableRows,qTableOlder.alternateBg(),d.getElementById("placeholder_largestQText").innerHTML=o.html,d.getElementById("sectionPreviousCWrap").style.display="",eval(o.js)}})})();]]>Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.