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Laacher See | |
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![]() View of the caldera volcano | |
Location in Germany | |
Location | Ahrweiler, Rhineland-Palatinate |
Coordinates | 50°24′45″N 07°16′12″E / 50.41250°N 7.27000°E |
Type | Volcanic caldera lake |
Primary inflows | None |
Primary outflows | Fulbert-Stollen (canal) |
Basin countries | Germany |
Max. length | 1.964 km (1.220 mi) |
Max. width | 1.186 km (0.737 mi) |
Surface area | 3.31 km2 (1.28 sq mi) |
Average depth | 31 m (102 ft) |
Max. depth | 51 m (167 ft) |
Water volume | 1.03 km3 (0.25 cu mi) |
Shore length1 | 7.3 km (4.5 mi) |
Surface elevation | 275 m (902 ft) |
Islands | None |
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.
[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.
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