Laacher See

Laacher See
View of the caldera volcano
Laacher See is located in Rhineland-Palatinate
Laacher See
Laacher See
Location in Germany
Laacher See is located in Germany
Laacher See
Laacher See
Laacher See (Germany)
LocationAhrweiler, Rhineland-Palatinate
Coordinates50°24′45″N 07°16′12″E / 50.41250°N 7.27000°E / 50.41250; 7.27000
TypeVolcanic caldera lake
Primary inflowsNone
Primary outflowsFulbert-Stollen (canal)
Basin countriesGermany
Max. length1.964 km (1.220 mi)
Max. width1.186 km (0.737 mi)
Surface area3.31 km2 (1.28 sq mi)
Average depth31 m (102 ft)
Max. depth51 m (167 ft)
Water volume1.03 km3 (0.25 cu mi)
Shore length17.3 km (4.5 mi)
Surface elevation275 m (902 ft)
IslandsNone
1 Shore length is not a well-defined measure.

Laacher See (German pronunciation: [ˈlaːxɐ ˈzeː]), also known as Lake Laach or Laach Lake, is a volcanic caldera lake with a diameter of 2 km (1.2 mi) in Rhineland-Palatinate, Germany, about 24 km (15 mi) northwest of Koblenz, 37 km (23 mi) south of Bonn, and 8 km (5.0 mi) west of Andernach. It is in the Eifel mountain range, and is part of the East Eifel volcanic field within the larger Volcanic Eifel. The lake was formed by a Plinian eruption approximately 13,000 years BP with a Volcanic Explosivity Index (VEI) of 6, on the same scale as the Pinatubo eruption of 1991.[1][2][3][4][5] The volcanic discharge observable as mofettas on the southeastern shore of the lake is a sign of dormant volcanism.

  1. ^ Oppenheimer, Clive (2011). Eruptions that Shook the World. Cambridge University Press. pp. 216–217. ISBN 978-0-521-64112-8.
  2. ^ de Klerk, Pim; et al. (2008). "Environmental impact of the Laacher See eruption at a large distance from the volcano: Integrated palaeoecological studies from Vorpommern (NE Germany)". Palaeogeography, Palaeoclimatology, Palaeoecology. 270 (1–2): 196–214. Bibcode:2008PPP...270..196D. doi:10.1016/j.palaeo.2008.09.013.
  3. ^ Bogaard, Paul van den (1995). "40Ar/39Ar ages of sanidine phenocrysts from Laacher See Tephra (12,900 yr BP): Chronostratigraphic and petrological significance". Earth and Planetary Science Letters. 133 (1–2): 163–174. Bibcode:1995E&PSL.133..163V. doi:10.1016/0012-821X(95)00066-L.
  4. ^ "Geo-Education and Geopark Implementation in the Vulkaneifel European Geopark/Vulkanland Eifel National Geopark". The Geological Society of America. 2011. Archived from the original on 13 January 2019. Retrieved 8 January 2013.
  5. ^ Reinig, Frederick; Wacker, Lukas; Jöris, Olaf; Oppenheimer, Clive; Guidobaldi, Giulia; Nievergelt, Daniel; et al. (30 June 2021). "Precise date for the Laacher See eruption synchronizes the Younger Dryas". Nature. 595 (7865): 66–69. Bibcode:2021Natur.595...66R. doi:10.1038/S41586-021-03608-X. ISSN 1476-4687. Wikidata Q107389873. [Measurements] firmly date the [Laacher See eruption] to 13,006 ± 9 calibrated years before present (BP; taken as AD 1950), which is more than a century earlier than previously accepted.