Moderate magnitude 4.0 earthquake at 78 km depth23 Mar 00:42 UTC: First to report: VolcanoDiscovery after 4 minutes.23 Mar 00:42: Now using data updates from CSN23 Mar 00:45: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeMar 23, 2026 00:37:44 UTC - Local time at epicenterSunday, Mar 22, 2026, at 09:37 pm (America/Santiago GMT -3)Statusconfirmed (manually revised)Magnitude4.0Depth78 kmEpicenter latitude / longitude22.72°S / 69.56°WProvincia de Tocopilla, Region de Antofagasta, ChileSeismic antipode22.72°N / 110.44°EChinaShaking intensityII Very weak shakingFelt3 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoSan Pedro (151 km / 94 mi)Weather at epicenter at time of quakeFew Clouds 19.4°C (67 F), humidity: 46%, wind: 3 m/s (6 kts) from SSWEstimated 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 energy22 minutes ago reported feltMar 23, 2026 00:37 GMT / Mar 22, 2026 09:37 pm (Santiago time)Lat / Lng: -22.72 / -69.56: Antofagasta, ChileSource: EMSCOther sources: CSN: 4.2 / 88 km, GFZ: 4.1 / 90 km, 1 more...Detail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-22833897',-22.72000,-69.56000,'22 minutes ago: Mag. 4.0, Antofagasta, Chile',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 ChileNearby placesThe closest larger town where the quake might have been felt is Maria Elena, a town with 4,900 inhabitants in Chile, in 43 km (27 mi) distance north of the epicenter. People likely experienced very weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry31 km (19 mi)SE of epicenterSierra Gorda(pop: 1,070)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile43 km (27 mi)N of epicenterMaria Elena(pop: 4,900)II: Very weakProvincia de Tocopilla, Region de AntofagastaChile72 km (44 mi)NE of epicenterCalama(pop: 166,300)II: Very weakProvincia de El Loa, Region de AntofagastaChile74 km (46 mi)S of epicenterBaquedano(pop: 858)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile96 km (60 mi)NW of epicenterTocopilla(pop: 25,400)II: Very weakRegion de AntofagastaChile100 km (62 mi)SW of epicenterMejillones(pop: 14,100)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile118 km (73 mi)N of epicenterQuillagua(pop: 141)II: Very weakProvincia de Tocopilla, Region de AntofagastaChile134 km (84 mi)SW of epicenterAntofagasta(pop: 401,100)II: Very weakRegion de AntofagastaChile141 km (88 mi)E of epicenterSan Pedro de Atacama(pop: 2,000)II: Very weakProvincia de El Loa, Region de AntofagastaChile163 km (101 mi)N of epicenterCaleta Chipana(pop: 84)II: Very weakProvincia de Iquique, TarapacáChile201 km (125 mi)N of epicenterRio Seco(pop: 145)I: Not feltProvincia de Iquique, TarapacáChile206 km (128 mi)N of epicenterHuatacondo(pop: 55)I: Not feltProvincia del Tamarugal, TarapacáChile214 km (133 mi)NE of epicenterOllagüe(pop: 134)I: Not feltProvincia de El Loa, Region de AntofagastaChile220 km (137 mi)N of epicenterOficina Victoria(pop: 83)I: Not feltProvincia del Tamarugal, TarapacáChile232 km (144 mi)N of epicenterColonia Pintados(pop: 143)I: Not feltProvincia del Tamarugal, TarapacáChile233 km (145 mi)N of epicenterChanavayita(pop: 603)I: Not feltProvincia de Iquique, TarapacáChile244 km (152 mi)N of epicenterPlaya Quinteros(pop: 20)I: Not feltProvincia de Iquique, TarapacáChile249 km (155 mi)N of epicenterPica(pop: 9,300)I: Not feltProvincia del Tamarugal, TarapacáChile262 km (163 mi)N of epicenterLos Verdes(pop: 216)I: Not feltProvincia de Iquique, TarapacáChile265 km (165 mi)N of epicenterLa Tirana(pop: 1,530)I: Not feltProvincia del Tamarugal, TarapacáChile275 km (171 mi)N of epicenterPozo Almonte(pop: 16,900)I: Not feltProvincia del Tamarugal, TarapacáChile278 km (173 mi)N of epicenterAlto Hospicio(pop: 142,100)I: Not feltProvincia de Iquique, TarapacáChile285 km (177 mi)N of epicenterIquique(pop: 199,600)I: Not feltTarapacáChile288 km (179 mi)N of epicenterBaquedano(pop: 587)I: Not feltProvincia del Tamarugal, TarapacáChile291 km (181 mi)NE of epicenterCulpina K(pop: 71)I: Not feltDepartamento de PotosiBolivia297 km (184 mi)N of epicenterMamiña(pop: 319)I: Not feltProvincia del Tamarugal, TarapacáChile302 km (188 mi)NE of epicenterSan Cristobal(pop: 75)I: Not feltDepartamento de PotosiBolivia304 km (189 mi)N of epicenterHuara(pop: 2,860)I: Not feltProvincia del Tamarugal, TarapacáChile311 km (193 mi)N of epicenterTarapaca(pop: 121)I: Not feltProvincia del Tamarugal, TarapacáChile313 km (195 mi)S of epicenterTaltal(pop: 10,000)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile318 km (197 mi)N of epicenterPachica(pop: 168)I: Not feltProvincia del Tamarugal, TarapacáChile321 km (199 mi)N of epicenterCoscaya(pop: 10)I: Not feltProvincia del Tamarugal, TarapacáChile378 km (235 mi)NE of epicenterUyuni(pop: 10,300)I: Not feltDepartamento de PotosiBolivia383 km (238 mi)NE of epicenterColchani(pop: 12,000)I: Not feltDepartamento de PotosiBoliviaNotes:(*) 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 Chile. The quake was reported to have been felt in up to approx. 30 km (19 mi) distance.Most reports came from Calama (1 report), a city with more than 170,000 inhabitants in Region de Antofagasta in 72 km (44 mi) distance northeast of the epicenter, Chile, Santiago (1 report), the capital of Chile with 4,800,000 inhabitants in 1,199 km (745 mi) distance south of the epicenter, and Sierra Gorda (1 report) (31 km or 19 mi to the southeast). 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!TranslateSierra gorda (31.7 km ESE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Fuerte remezon de menos a más... Con ruido subterráneo Calama / Weak shaking (MMI III)Calama, 1 norte 1313 (71.6 km ENE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / very short : Estaba en mi pieza y vibró todo List of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsCalama, Region de Antofagasta, Chile(Pop.: 166,334)72 km (44 mi)NE of epicenterV: Moderate shaking1Santiago, Santiago Metropolitan, Chile(Pop.: 4,837,295)1,199 km (745 mi)S of epicenterIII: Weak shaking1Sierra Gorda, Region de Antofagasta, Chile(Pop.: 1,069)31 km (19 mi)SE of epicenterIII: Weak shaking1Note: 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 (*)III: Weak shaking132–32 km (19.7–19.7 mi)32 km (20 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.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 GMT2026-03-23EpicenterAgency4.078 km48 mi00:37:44ANTOFAGASTA, CHILEEMSC (European-Mediterranean Seismological Centre)4.288 km55 mi00:37:4224 km al NO de Sierra Gorda10.5 km (6.5 mi) epicenter difference with EMSCCSN (National Seismological Center (Centro Sismológico Nacional))4.1690 km56 mi00:37:42.36Northern Chile7.8 km (4.9 mi) epicenter difference with EMSCGFZ (German Research Centre for Geosciences)4.290 km56 mi00:37:42Northern Chile8.4 km (5.2 mi) epicenter difference with EMSCRaspberryShake (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 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)Mar 22, 2026 09:37 pm (Santiago)22 minutes ago - felt4.078 km0 km - This quakeProvincia de Tocopilla, 72 km SW of Calama, Provincia de El Loa, Region de Antofagasta, ChileMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 26 years and our earthquake archive back to 1900, there are about 418 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)Mag. 6 or higher: 0.13 quakes per year (or 1 quake every 7.9 years)Mag. 5 or higher: 1.81 quakes per yearMag. 4 or higher: 31.1 quakes per year (or 2.6 quakes per month)Mag. 3 or higher: 180 quakes per year (or 15 quakes per month)Mag. 2 or higher: 419 quakes per year (or 34.9 quakes per month)Mag. 1 or higher: 423 quakes per year (or 35.2 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 4 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 30 to 35 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 1 day 6 hours after a magnitude 4.2 earthquake had hit on Saturday, Mar 21, 2026, at 03:33 pm local time (America/Santiago GMT -3) in 49 km (30 mi) distance to the northwest:Mag. 4.2 earthquake 47 km southeast of Tocopilla - Region de Antofagasta, Chile - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 7.4. It had occurred 1 year 35 weeks earlier, on Thursday, Jul 18, 2024, at 09:50 pm local time (America/Santiago GMT -4) in Region de Antofagasta, Chile:Mag. 7.4 earthquake 115 km southeast of Calama - Region de Antofagasta, Chile - Jul 18, 2024 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 8.2. It had occurred 75 years ago earlier, on Saturday, Dec 9, 1950, at 09:38 pm local time (Universal Time GMT +0) in Region de Antofagasta, Chile:Mag. 8.2 earthquake Provincia de El Loa - Region de Antofagasta, Chile - Dec 9, 1950 - 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 TimeMagDepthDistanceLocationDetailsMapMar 21, 03:33 pm (Santiago)4.261 km49 km (30 mi) to the NW 47 km southeast of Tocopilla, Provincia de Tocopilla, Region de Antofagasta, Chile I FELT ITInfoFeb 16, 06:24 pm (Santiago)5.0103 km74 km (46 mi) to the NE 30 km northwest of Calama, Provincia de El Loa, Region de Antofagasta, Chile 6 reportsInfoFeb 4, 05:01 am (Santiago)4.8107 km90 km (56 mi) to the NE 39 km north of Calama, Provincia de El Loa, Region de Antofagasta, Chile 5 reportsInfoFeb 3, 01:39 pm (Santiago)4.577 km32 km (20 mi) to the SE 69 km SW of Calama, Chile 2 reportsInfoDec 26, 2025 04:05 pm (Santiago)4.7112 km88 km (55 mi) to the E 20 km east of Calama, Provincia de El Loa, Region de Antofagasta, Chile 1 reportInfoMar 6, 2025 01:21 pm (Santiago)6.194 km90 km (56 mi) to the SE 138 km east of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, Chile 28 reportsInfoJul 18, 2024 09:50 pm (Santiago)7.4145 km159 km (99 mi) to the E 115 km southeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile 170 reportsInfoJan 11, 2017 06:58 pm (Santiago)5.768 km14 km (8.8 mi) to the SW Northern Chile 15 reportsInfoApr 2, 2014 09:43 pm (GMT -5)7.722 km258 km (160 mi) to the NWSouth Pacific Ocean, 54 km southwest of Iquique, Provincia de Iquique, Tarapacá, Chile 7 reportsInfoFeb 12, 2014 07:43 am (Santiago)5.6100 km87 km (54 mi) to the NE 16 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile 1 reportInfoDec 26, 2007 07:40 pm (Santiago)5.5107 km100 km (62 mi) to the E 31 km east of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoDec 16, 2007 04:09 am (Santiago)6.745 km69 km (43 mi) to the SW 81 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoNov 20, 2007 01:55 pm (Santiago)6.115 km97 km (60 mi) to the WSouth Pacific Ocean, 82 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoNov 16, 2007 11:07 pm (Santiago)5.535 km83 km (51 mi) to the SW 68 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoNov 15, 2007 11:15 am (Santiago)5.629 km66 km (41 mi) to the W 98 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoNov 15, 2007 11:05 am (Santiago)6.826 km73 km (45 mi) to the W 82 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoNov 15, 2007 11:03 am (Santiago)6.327 km88 km (55 mi) to the WSouth Pacific Ocean, 87 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoNov 14, 2007 11:40 am (Santiago)7.740 km63 km (39 mi) to the NW 36 km southeast of Tocopilla, Provincia de Tocopilla, Region de Antofagasta, ChileInfoJun 14, 2007 06:41 am (Santiago)5.5105 km74 km (46 mi) to the SEProvincia de Antofagasta, 63 km south of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoMar 10, 2007 10:07 am (Santiago)5.550 km66 km (41 mi) to the S 81 km northeast of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoJun 26, 2006 10:07 pm (Santiago)5.5115 km89 km (55 mi) to the E 41 km southeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoJan 23, 2004 01:00 am (Santiago)5.972 km50 km (31 mi) to the SW 85 km northeast of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoJan 8, 2000 07:59 am (Santiago)6.436 km76 km (47 mi) to the SW 61 km northeast of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoJan 30, 1998 08:16 am (Santiago)7.142 km148 km (92 mi) to the SW Antofagasta, ChileInfoAug 3, 1995 10:19 am (Santiago)5.733 km90 km (56 mi) to the WSouth Pacific Ocean, 78 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoAug 2, 1995 07:05 am (Santiago)5.833 km97 km (60 mi) to the SW 59 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoJul 30, 1995 01:11 am (Santiago)8.046 km102 km (63 mi) to the SW 36 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoFeb 5, 1988 10:01 am (Santiago)7.237 km243 km (151 mi) to the S 123 km south of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoJan 19, 1988 03:30 am (Santiago)7.033 km244 km (152 mi) to the SW 119 km south of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoMar 5, 1987 06:55 am (Santiago)7.035 km229 km (142 mi) to the SWSouth Pacific Ocean, 99 km south of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoMar 5, 1987 05:17 am (Santiago)7.662 km195 km (121 mi) to the S 84 km SSE of Antofagasta, ChileInfoMay 14, 1979 07:04 pm (Santiago)5.985 km46 km (28 mi) to the EProvincia de Antofagasta, 44 km southwest of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoDec 8, 1971 12:05 pm (Santiago)6.130 km84 km (52 mi) to the WSouth Pacific Ocean, 94 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoDec 4, 1970 01:08 pm (Santiago)6.539 km71 km (44 mi) to the SW 63 km northeast of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoNov 12, 1970 08:09 pm (Santiago)5.736 km78 km (48 mi) to the NW 25 km east of Tocopilla, Provincia de Tocopilla, Region de Antofagasta, ChileInfoJun 19, 1970 06:56 am (Santiago)6.560 km90 km (56 mi) to the NW 20 km SSW of Tocopilla, ChileInfoDec 20, 1967 10:25 pm (Santiago)7.345 km103 km (64 mi) to the NW 37 km northeast of Tocopilla, Provincia de Tocopilla, Region de Antofagasta, ChileInfoDec 16, 1965 06:46 pm (Santiago)5.598 km92 km (57 mi) to the E 27 km east of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoDec 3, 1963 11:03 pm (GMT +0)6.335 km41 km (26 mi) to the WProvincia de Antofagasta, 71 km south of Tocopilla, Provincia de Tocopilla, Region de Antofagasta, ChileInfoDec 2, 1960 05:10 am (Santiago)7.335 km236 km (147 mi) to the S 121 km south of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoOct 30, 1960 05:32 pm (Santiago)6.867 km93 km (58 mi) to the E 65 km south of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoDec 6, 1953 11:05 pm (Santiago)7.40 km112 km (70 mi) to the NE 46 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoDec 9, 1950 09:38 pm (Universal Time)8.2114 km219 km (136 mi) to the SEProvincia de El Loa, 256 km east of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoDec 26, 1948 04:12 am (Santiago)7.00 km62 km (39 mi) to the NE 9.2 km southwest of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoJul 13, 1936 11:12 am (Universal Time)7.535 km230 km (143 mi) to the S 121 km south of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoFeb 23, 1933 08:09 am (Universal Time)7.235 km253 km (157 mi) to the NSouth Pacific Ocean, 35 km south of Iquique, Provincia de Iquique, Tarapacá, ChileInfoNov 20, 1928 08:35 pm (Universal Time)7.045 km70 km (44 mi) to the SW 65 km northeast of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoDec 23, 1916 09:24 am (Universal Time)6.875 km9.6 km (6 mi) to the SWProvincia de Tocopilla, 81 km southwest of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoAug 25, 1916 05:44 am (La Paz)7.50 km250 km (155 mi) to the NE 282 km southwest of Potosi, Departamento de Potosi, BoliviaInfoOct 4, 1910 11:00 pm (Universal Time)7.2120 km99 km (61 mi) to the NE 51 km north of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoMap 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]