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Chaitén (volcano)

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Chaitén, completely destroying a significant part of it by July 2008. Some defensive work has been undertaken by the government. There were plans to move town some 10 kilometres (6 mi) north but these have not been concluded as yet. The town of Chaiten is slowly recovering. Its current population is about 900 people.
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Through the remainder of May and June 2008 the eruption continued as a variable but gradually decreasing emission of ash, with intermittent seismic activity and pyroclastic flows. On May 21, a new lava dome was observed to be forming in the crater, which by May 24 exceeded the height of the old dome.
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Forests near the volcano have been burned by pyroclastic flows and lateral explosions. Large parts of southern Argentina and Chile have been coated with ash, with possible longer term consequences for agriculture, although not only negative as ash adds new minerals to the soil. Large amounts of ash
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As of July 3, 2008, Chaitén continued to erupt, with associated seismic activity, an eruptive column of ash up to 3,000 metres (9,800 ft), and a growing lava dome. Whether the dome will be stable remains uncertain, and there is an ongoing risk of collapse and explosive pyroclastic eruption. In
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Beginning on May 12, lahars caused flooding in the town of Chaitén, depositing ash mud to a depth of up to a metre or more, damaging many buildings, and completely filling the original course of the Chaitén River past the town. Over the subsequent weeks, the river excavated a new course through
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located 75 kilometres (47 mi) southeast to a depth of 30 centimetres (12 in). Ash thickness estimates are often exaggerated during volcanic crises; later field investigations suggest that the average ash thickness deposited across Futaleufú was less than 5–10 cm (2–4 in).
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August 2008, an expedition reached the summit of Chaiten volcano. The summit crater contained a 120 metres (390 ft) high lava dome. Earthquakes were felt at the summit. The lava dome was loudly degassing, and avalanches of lava boulders fell from the dome side to the crater floor.
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The initial phase of the actual eruption in 2008 was characterised by ash emissions and seismic activity; local seismic measurements in 2005 registered earthquakes up to magnitude 3.6 MW below the Chaitén volcano. On May 6, 2008, the force of eruption increased significantly, producing
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Initially, the dome extended towards the north side of the caldera, but following the emergence of two new vents in the south of the old dome around June 11 and a later one to the west, the expansion moved to the south, eventually blocking the drainage from the caldera floor.
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Lange, D.; Cembrano, J.; Rietbrock, A.; Haberland, C.; Dahm, T.; Bataille, K. (April 2008). "First seismic record for intra-arc strike-slip tectonics along the Liquiñe-Ofqui fault zone at the obliquely convergent plate margin of the southern Andes".
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On February 19, 2009, a partial dome collapse caused pyroclastic flows to descend through the Chaitén river valley reaching down to approximately 5 kilometres (3 mi) from the town of Chaitén. The ash once again reached Futaleufú and parts of
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In the early phase of the eruption (May 2, 2008), two separate vents had developed in the old lava dome. An overflight on May 6, 2008, found that these had fused into one vent roughly 800 metres (2,600 ft) across.
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SFL Watt et al., 2009, Fallout and distribution of volcanic ash over Argentina following the May 2008 explosive eruption of Chaiten, Chile, Journal of Geophysical Research (Solid Earth) 114, B04207
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from the volcano suggested that its last previous eruption was in 7420 BC ± 75 years. However, recent studies have found that the volcano is more active than thought. According to the
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The Chaitén volcano entered a new eruptive phase for the first time since around 1640 on the morning of May 3, 2008. The Chilean government began an evacuation of the nearby town of
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On May 8, 2008, the government said it would force the last residents from the danger area, but this was later legally challenged by some residents and left to no effect by the
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to a height of perhaps 30,000 metres (98,000 ft). The remaining personnel and almost all inhabitants of Chaitén and nearby villages were evacuated, as was Futaleufú.
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that reached a height of 962 metres (3,156 ft), partly devoid of vegetation. Two small lakes occupied the caldera floor on the west and north sides of the lava dome.
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cultures as a raw material for artifacts and has been found as far away as 400 kilometres (250 mi) to the south and north, for example in
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A team of scientists from the US was dispatched to the area to assess the air quality and the risks from chemicals in the falling ash.
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A Folch et al., 2008, Volcanic ash forecast – application to the May 2008 Chaitén eruption, Nat. Hazards Earth Syst. Sci., 8, 927–940
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This eruption is known as the first major explosive eruption of rhyolite magma in nearly a century, since the 1912 eruption of
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The caldera rim reaches 1,122 metres (3,681 ft) above sea level. Before the current eruption, it was mostly filled by a
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M Reich et al., 2009, Formation of cristobalite nanofibers during explosive volcanic eruptions, Geology 37, 435–438
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in the past, these are relatively scarce and there is no historic rhyolitic eruption of the magnitude of Chaitén.
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LE Lara, 2009, The 2008 eruption of the Chaitén volcano: a preliminary report, Andean Geology 36, 125–129
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filled the river bed—the river flooded and buried large parts of the town with volcanic material.
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3 kilometres (2 mi) in diameter, 17 kilometres (11 mi) west of the elongated ice-capped
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warned of possible major pyroclastic incidents, and the likelihood of prolonged activity.
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The caldera is the circular feature visible in the lower part of the image. The town of
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Watt, S.F.L.; Pyle, D.M.; Mather, T.A.; Martin, R.S.; Matthews, N.E. (2009).
582: 310: 277:. The most recent eruptive phase of the volcano erupted on 2008. Originally, 262: 216: 102: 89: 2097: 1576: 590: 2145: 2107: 1884: 1824: 1749: 804: 334: 330: 1431: 1321:"Informe N° 270 12/05/08 Actividad Volcán Chaitén (Actualiza Información)" 404: 2102: 1952: 1819: 1814: 1804: 1744: 1551: 782: 838: 2012: 1844: 1839: 1799: 1769: 1679: 1646: 1641: 1601: 1436: 724:"Informe Nª- 248 04/05/08- Actividad Volcánica (Actualiza Información)" 48: 1401: 1072:"Actividad Eruptiva del Volcán Chaitén ha Decaído al Tipo Subpliniano" 755: 326: 266: 166: 59:
is to the top. (This image is aligned roughly southwest, around 220°.)
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Region de los Lagos regional government photographs of the emergency.
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The Chaitén Volcano seen from a commercial flight, October 2008.
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volcano and 10 kilometres (6 mi) northeast of the town of
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Note: volcanoes are ordered by latitude from north to south
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Chaiten Volcano Still Active – The Big Picture – Boston.com
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Active volcano in Palena Province, Los Lagos Region, Chile
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TerraDaily: Chilean volcano turns Chaiten into ghost town
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BBC, November 1, 2008, Alert at smoking Chile volcano
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2003 photograph from the International Space Station.
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Image of the ash cloud taken on March 6, 2009. EO-1.
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By the afternoon of May 3, the plume of 1517: 1503: 1176: 751: 749: 661: 1416:Scientific Papers on the Chaitén eruption 837: 781: 572: 488:Areal view of Chaitén after the volcanic 798: 650: 483: 403: 379: 352: 238: 746: 165:10 kilometres (6 mi) northeast of 14: 2173: 1498: 1454:Images and videos of current eruption 514: 512: 510: 508: 506: 1524: 1489:Southern Andean Volcano Observatory 1291:"Informa acerca del Volcán Chaitén" 1275:. February 19, 2009. Archived from 1253:. February 19, 2009. Archived from 1217:"Informa acerca del Volcán Chaitén" 906: 597: 361:from 2008 eruption stretching into 24: 914:"Chile eruption spurs evacuations" 503: 25: 2232: 1347: 1187:"informa sobre el volcán Chaitén" 666:. Patagonia Times. Archived from 289:, its last eruption was in 2011. 1369:Dagbladet: Vulkanen blir sintere 662:Malinowski, Matt (May 5, 2008). 320: 136: 129: 47: 1313: 1283: 1261: 1239: 1223:. June 27, 2008. Archived from 1209: 1160:. June 22, 2008. Archived from 1146: 1138:. June 13, 2008. Archived from 1124: 1094: 1064: 1038: 974:. Cooperativa.cl. July 11, 2008 964: 934: 876: 846: 762:Journal of Geophysical Research 574:10.4067/S0716-02082004000200003 137: 1327:. May 12, 2008. Archived from 1323:(Press release) (in Spanish). 1297:. June 5, 2008. Archived from 1293:(Press release) (in Spanish). 1271:(Press release) (in Spanish). 1249:(Press release) (in Spanish). 1219:(Press release) (in Spanish). 1193:. July 3, 2008. Archived from 1189:(Press release) (in Spanish). 1156:(Press release) (in Spanish). 1134:(Press release) (in Spanish). 1108:. May 22, 2008. Archived from 1104:(Press release) (in Spanish). 1078:. May 26, 2008. Archived from 1074:(Press release) (in Spanish). 944:(Press release) (in Spanish). 886:(Press release) (in Spanish). 856:(Press release) (in Spanish). 726:(Press release) (in Spanish). 716: 630:(Press release) (in Spanish). 620: 543: 13: 1: 2201:Volcanoes of Los Lagos Region 948:. May 6, 2008. Archived from 890:. May 6, 2008. Archived from 860:. May 6, 2008. Archived from 730:. May 4, 2008. Archived from 700:. May 4, 2008. Archived from 634:. May 3, 2008. Archived from 496: 2211:21st-century volcanic events 1402:Chaiten Volcano – John Seach 1397:The Volcanism Blog – Chaitén 397:explosions, and raising the 75:1,122 m (3,681 ft) 7: 830:10.1016/j.tecto.2008.04.014 10: 2237: 615:Revista Geológica de Chile 560:Revista Geológica de Chile 29: 2159: 2116: 1938: 1665: 1532: 464: 457:for several communities. 447: 227: 215: 203: 198: 184: 161: 123: 118: 79: 69: 64: 46: 41: 525:Global Volcanism Program 440:province in neighboring 287:Global Volcanism Program 30:Not to be confused with 530:Smithsonian Institution 1939:Southern Volcanic Zone 1725:Andagua volcanic field 1533:Northern Volcanic Zone 1485:Chaitén caldera webcam 1374:March 3, 2016, at the 493: 479:Southern Volcanic Zone 409: 385: 374: 251: 2196:Volcanic crater lakes 2117:Austral Volcanic Zone 2043:Puyehue-Cordón Caulle 1715:Huambo volcanic field 1666:Central Volcanic Zone 1257:on February 25, 2009. 487: 407: 383: 356: 305:The translucent grey 242: 103:42.83722°S 72.64806°W 1652:Licto volcanic field 1227:on December 26, 2008 1197:on December 26, 2008 1164:on December 26, 2008 1112:on December 26, 2008 952:on December 26, 2008 894:on December 26, 2008 864:on December 26, 2008 783:10.1029/2008JB006219 609:and Navarro, Rayen. 108:-42.83722; -72.64806 2221:Lava domes of Chile 2206:South Volcanic Zone 822:2008Tectp.455...14L 774:2009JGRB..11404207W 222:South Volcanic Zone 150:Location of Chaitén 99: /  2181:Mountains of Chile 2038:Carrán-Los Venados 1983:Nevados de Chillán 1968:Descabezado Grande 922:. BBC. May 6, 2008 494: 410: 393:and possibly some 386: 375: 279:radiocarbon dating 252: 65:Highest point 2216:Holocene calderas 2191:Calderas of Chile 2168: 2167: 1978:Nevado de Longaví 1920:Cueros de Purulla 1900:Cordón del Azufre 1562:Nevado del Tolima 1142:on June 17, 2008. 391:pyroclastic flows 271:Gulf of Corcovado 237: 236: 16:(Redirected from 2228: 2186:Active volcanoes 2163: 2033:Mocho-Choshuenco 1567:Nevado del Huila 1526:Andean volcanoes 1519: 1512: 1505: 1496: 1495: 1474: 1466: 1458: 1411: 1388: 1380: 1341: 1340: 1338: 1336: 1331:on June 16, 2008 1317: 1311: 1310: 1308: 1306: 1301:on June 17, 2008 1287: 1281: 1280: 1279:on July 7, 2011. 1265: 1259: 1258: 1243: 1237: 1236: 1234: 1232: 1213: 1207: 1206: 1204: 1202: 1183: 1174: 1173: 1171: 1169: 1150: 1144: 1143: 1128: 1122: 1121: 1119: 1117: 1098: 1092: 1091: 1089: 1087: 1068: 1062: 1061: 1059: 1057: 1042: 1036: 1035: 1033: 1031: 1016: 1010: 1009: 1007: 1005: 990: 984: 983: 981: 979: 968: 962: 961: 959: 957: 938: 932: 931: 929: 927: 910: 904: 903: 901: 899: 880: 874: 873: 871: 869: 850: 844: 843: 841: 802: 796: 795: 785: 753: 744: 743: 741: 739: 734:on June 11, 2008 720: 714: 713: 711: 709: 686: 680: 679: 677: 675: 659: 648: 647: 645: 643: 638:on June 11, 2008 624: 618: 605: 601: 595: 594: 576: 556: 547: 541: 540: 538: 536: 516: 188: 175:Los Lagos Region 140: 139: 133: 114: 113: 111: 110: 109: 104: 100: 97: 96: 95: 92: 51: 39: 38: 21: 2236: 2235: 2231: 2230: 2229: 2227: 2226: 2225: 2171: 2170: 2169: 2164: 2161: 2155: 2118: 2112: 1940: 1934: 1930:Ojos del Salado 1860:Aguas Calientes 1667: 1661: 1557:Nevado del Ruiz 1534: 1528: 1523: 1472: 1464: 1456: 1409: 1386: 1378: 1376:Wayback Machine 1350: 1345: 1344: 1334: 1332: 1319: 1318: 1314: 1304: 1302: 1289: 1288: 1284: 1267: 1266: 1262: 1245: 1244: 1240: 1230: 1228: 1215: 1214: 1210: 1200: 1198: 1185: 1184: 1177: 1167: 1165: 1152: 1151: 1147: 1130: 1129: 1125: 1115: 1113: 1100: 1099: 1095: 1085: 1083: 1082:on May 29, 2008 1070: 1069: 1065: 1055: 1053: 1044: 1043: 1039: 1029: 1027: 1018: 1017: 1013: 1003: 1001: 1000:on May 11, 2008 992: 991: 987: 977: 975: 970: 969: 965: 955: 953: 940: 939: 935: 925: 923: 912: 911: 907: 897: 895: 882: 881: 877: 867: 865: 852: 851: 847: 803: 799: 754: 747: 737: 735: 722: 721: 717: 707: 705: 698:Thomson Reuters 688: 687: 683: 673: 671: 660: 651: 641: 639: 626: 625: 621: 603: 602: 598: 554: 548: 544: 534: 532: 518: 517: 504: 499: 467: 450: 399:eruption column 363:San Jorge Basin 323: 186: 171:Palena Province 157: 156: 155: 154: 153: 151: 148: 147: 146: 145: 141: 107: 105: 101: 98: 93: 90: 88: 86: 85: 60: 54: 35: 28: 23: 22: 18:Chaitén Volcano 15: 12: 11: 5: 2234: 2224: 2223: 2218: 2213: 2208: 2203: 2198: 2193: 2188: 2183: 2166: 2165: 2160: 2157: 2156: 2154: 2153: 2148: 2143: 2138: 2133: 2128: 2122: 2120: 2114: 2113: 2111: 2110: 2105: 2100: 2095: 2090: 2085: 2080: 2075: 2070: 2065: 2060: 2055: 2050: 2045: 2040: 2035: 2030: 2025: 2020: 2015: 2010: 2005: 2000: 1995: 1990: 1985: 1980: 1975: 1970: 1965: 1960: 1955: 1950: 1944: 1942: 1936: 1935: 1933: 1932: 1927: 1922: 1917: 1912: 1907: 1902: 1897: 1892: 1887: 1882: 1877: 1872: 1867: 1862: 1857: 1852: 1850:Purico complex 1847: 1842: 1837: 1832: 1827: 1822: 1817: 1812: 1807: 1802: 1797: 1792: 1787: 1782: 1777: 1772: 1767: 1762: 1757: 1752: 1747: 1742: 1737: 1732: 1727: 1722: 1717: 1712: 1707: 1702: 1697: 1692: 1687: 1682: 1677: 1671: 1669: 1663: 1662: 1660: 1659: 1654: 1649: 1644: 1639: 1634: 1629: 1624: 1619: 1614: 1609: 1604: 1599: 1594: 1589: 1584: 1579: 1574: 1569: 1564: 1559: 1554: 1549: 1544: 1538: 1536: 1530: 1529: 1522: 1521: 1514: 1507: 1499: 1493: 1492: 1476: 1475: 1467: 1459: 1451: 1440: 1439: 1434: 1429: 1424: 1413: 1412: 1404: 1399: 1394: 1389: 1381: 1379:(in Norwegian) 1366: 1361: 1349: 1348:External links 1346: 1343: 1342: 1312: 1282: 1260: 1238: 1208: 1175: 1145: 1123: 1093: 1063: 1052:. 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Retrieved 523: 468: 459: 451: 434: 430: 426: 419: 411: 387: 376: 331:Puerto Montt 324: 304: 291: 273:in southern 254: 253: 233:2008 to 2011 187:Parent range 36: 2119:(49°–55° S) 2103:Mate Grande 1953:Tupungatito 1941:(33°–46° S) 1820:Olca-Paruma 1815:Irruputuncu 1805:Tata Sabaya 1745:Pichu Pichu 1675:Quimsachata 1668:(14°–27° S) 1552:Cerro Bravo 1443:Photography 1384:SERNAGEOMIN 1295:SERNAGEOMIN 1251:SERNAGEOMIN 1221:SERNAGEOMIN 1191:SERNAGEOMIN 1158:SERNAGEOMIN 1136:SERNAGEOMIN 1106:SERNAGEOMIN 1076:SERNAGEOMIN 946:SERNAGEOMIN 607:Pino, Mario 269:, near the 106: / 81:Coordinates 2175:Categories 2063:Hornopirén 2048:Casablanca 2018:Villarrica 2013:Sollipulli 1973:Cerro Azul 1845:Licancabur 1840:Sairecabur 1800:Guallatiri 1790:Parinacota 1770:Purupuruni 1680:Auquihuato 1647:Tungurahua 1642:Chimborazo 1602:Reventador 1577:Doña Juana 768:(B04207). 694:Reuters UK 497:References 94:72°38′53″W 91:42°50′14″S 2083:Corcovado 2003:Lonquimay 1963:Calabozos 1948:Tupungato 1925:Incahuasi 1890:Lastarria 1870:Chiliques 1710:Sabancaya 1690:Sara Sara 1607:Pichincha 1542:Paipa-Iza 1050:La Nación 1024:Bloomberg 583:0716-0208 520:"Chaitén" 471:Novarupta 442:Argentina 359:ash cloud 347:Futaleufú 339:Argentina 315:Chan-Chan 300:lava dome 281:of older 248:lava dome 245:rhyolitic 119:Geography 71:Elevation 2151:Fueguino 2136:Aguilera 2088:Mentolat 1998:Callaqui 1835:Zapaleri 1765:Yucamane 1760:Tutupaca 1730:Chachani 1700:Coropuna 1695:Solimana 1637:Quilotoa 1632:Cotopaxi 1627:Illiniza 1612:Antisana 1372:Archived 1353:Articles 1335:July 10, 1305:July 10, 1231:July 11, 1201:July 11, 1168:July 10, 1116:July 10, 1086:July 10, 1056:July 10, 1030:July 10, 919:BBC News 792:53137424 591:61022562 307:obsidian 297:obsidian 294:rhyolite 162:Location 152:in Chile 2126:Lautaro 2078:Chaitén 2058:Calbuco 1993:Copahue 1910:Peinado 1895:Lazufre 1880:Socompa 1785:Taapaca 1755:Ticsani 1597:Cayambe 1587:Azufral 1582:Galeras 1547:Romeral 1479:Webcams 1004:July 9, 956:July 9, 926:May 13, 898:July 9, 868:July 9, 818:Bibcode 770:Bibcode 738:July 9, 708:May 13, 674:May 13, 642:July 9, 617:, 2005. 365:in the 341:to the 327:Chaitén 267:Chaitén 259:caldera 255:Chaitén 210:Caldera 199:Geology 167:Chaitén 144:Chaitén 57:Chaitén 42:Chaitén 2146:Burney 2141:Reclus 2131:Viedma 2108:Hudson 2068:Huequi 2053:Osorno 2008:Llaima 1988:Antuco 1875:Aracar 1865:Lascar 1855:Pacana 1830:Azufre 1810:Isluga 1780:Tacora 1775:Casiri 1740:Ubinas 1720:Ampato 1685:Firura 1657:Sangay 1592:Chiles 1572:Puracé 978:May 2, 790:  589:  581:  535:May 2, 490:tephra 475:Alaska 465:Rarity 455:lahars 448:Damage 438:Chubut 283:tephra 2028:Lanín 1958:Maipo 1905:Galán 1795:Lauca 1735:Misti 1622:Soche 1617:Aliso 1325:ONEMI 1273:ONEMI 888:ONEMI 858:ONEMI 788:S2CID 728:ONEMI 632:ONEMI 555:(PDF) 473:, in 415:OVDAS 371:MODIS 275:Chile 193:Andes 179:Chile 2098:Macá 1337:2008 1307:2008 1233:2008 1203:2008 1170:2008 1118:2008 1088:2008 1058:2008 1032:2008 1006:2008 980:2013 958:2008 928:2008 900:2008 870:2008 740:2008 710:2008 676:2008 644:2008 587:OCLC 579:ISSN 537:2018 395:lava 2093:Cay 834:hdl 826:doi 814:455 778:doi 766:114 569:doi 335:ash 2177:: 1178:^ 1022:. 916:. 832:. 824:. 812:. 786:. 776:. 764:. 760:. 748:^ 696:. 692:. 652:^ 613:. 585:. 577:. 565:31 563:. 557:. 528:. 522:. 505:^ 369:. 317:. 177:, 173:, 169:, 1518:e 1511:t 1504:v 1491:) 1487:( 1339:. 1309:. 1235:. 1205:. 1172:. 1120:. 1090:. 1060:. 1034:. 1008:. 982:. 960:. 930:. 902:. 872:. 842:. 836:: 828:: 820:: 794:. 780:: 772:: 742:. 712:. 678:. 646:. 593:. 571:: 539:. 34:. 20:)

Index

Chaitén Volcano
Cerro Chaltén

Chaitén
Elevation
Coordinates
42°50′14″S 72°38′53″W / 42.83722°S 72.64806°W / -42.83722; -72.64806
Chaitén is located in Chile
Chaitén
Palena Province
Los Lagos Region
Chile
Parent range
Andes
Mountain type
Caldera
Volcanic belt
South Volcanic Zone
Last eruption

rhyolitic
lava dome
caldera
Michinmahuida
Chaitén
Gulf of Corcovado
Chile
radiocarbon dating
tephra
Global Volcanism Program

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