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Alexander von Humboldt: „Facts Respecting Volcanos“, in: ders., Sämtliche Schriften digital, herausgegeben von Oliver Lubrich und Thomas Nehrlich, Universität Bern 2021. URL: <https://humboldt.unibe.ch/text/1823-Ueber_den_Bau-12-neu> [abgerufen am 23.04.2024].
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| Titel | Facts Respecting Volcanos | ||||
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| Jahr | 1850 | ||||
| Ort | Canterbury | ||||
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Nachweis in: Kentish Gazette, for East and West Kent, Sussex, Surrey, and Middlesex 135:9 (26. Februar 1850), [o. S.].
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| Sprache | Englisch | ||||
| Typografischer Befund | Antiqua; Spaltensatz; Auszeichnung: Kursivierung. | ||||
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|Seitenumbruch|
—These assemblages ofvolcanos, whether in rounded groups or in double lines,show in the most conclusive manner that the volcanic agen-cies do not depend on small or restricted causes in nearproximity to the surface of the earth, but that they aregreat phenomena of deep-seated origin. The whole of theeastern part of the American continent, which is poor inmetals, is, in its present state, without fire-emitting moun-tains, without masses of trachyte, and perhaps even with-out basalt containing olivine. All the American volcanosare on the side of the continent which is opposite to Asia,in the chain of the Andes which runs nearly in the directionof a meridian, and extends over a length of 7,200 geogra-phical miles. The whole plateau or high-land of Quito, ofwhich Pichinca, Cotopaxi, and Tunguragua form the sum-mits, is to be viewed as a single volcanic furnace. Thesubterranean fire breaks forth sometimes through one andsometimes through another of these openings, which ithas been customary to regard as separate and distinct vol-canos. The progressive march of the subterranean firehas been here directed for three centuries from north tosouth. Even the earthquakes which occasion such dreadfulravages in this part of the world afford remarkable proofsof the existence of subterranean communications, not onlybetween countries where there are no volcanos, (a factwhich had long been known,) but also between fire-emittingopenings situated at great distances asunder. Thus in 1797the volcano of Pasto, east of the Guaytara river, emitteduninterruptedly for three months a lofty column of smoke,which column disappeared at the instant when, at a dis-tance of 240 geographical miles, the great earthquake ofRiobamba and the immense eruption of mud called “Moya”took place, causing the death of between thirty and fortythousand persons.—Humboldt’s Aspects of Nature.
Facts Respecting Volcanos.