Laacher See volcano

caldera 407 m
Deutschland, 50.42°N / 7.28°E
Current status: normal or dormant (1 out of 5)
Last update: 26 Mar 2019
The Laacher See lake in Germany (photo: Tobias Schorr)
The Laacher See lake in Germany (photo: Tobias Schorr)

Laacher See or Laach Lake (in English) is a crater lake or more exactly a caldera lake in the Rhineland-Palatinate, Germany, situated close to the cities of Koblenz, Mayen (11 km), and Andernach (14 km). It fills a volcanic caldera in the Eifel mountain range, the only caldera in Central Europe. It is part of the area of the "east Eifel volcanic field".

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Typical eruption style: Plinian eruptions, interaction between hot magma and water, hydrothermal explosions
Laacher See volcano eruptions: 10900 B.C. - 9191 B.C.

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Sun, 20 Jun 2021 (GMT) (2 earthquakes)
20 Jun 2021 08:24:54 GMT
0.6

6 km
13 km (8.1 mi)
Germany: OCHTENDUNG
20 Jun 2021 08:24:26 GMT
0.5

7.9 km
13 km (8.1 mi)
Germany: OCHTENDUNG
Thu, 17 Jun 2021 (GMT) (3 earthquakes)
17 Jun 2021 19:28:51 GMT
0.4

3 km
5.8 km (3.6 mi)
Germany: W
17 Jun 2021 04:36:53 GMT
0.3

10 km
9.4 km (5.8 mi)
Germany: ANDERNACH
17 Jun 2021 02:46:02 GMT
0.7

14 km
4.6 km (2.9 mi)
Germany: W

Background

The caldera of Laacher See was formed after the Laacher volcano erupted, between 12,900 and 11,200 years ago. The remaining crust collapsed into the empty magma chamber below, only two or three days after the eruption. With an estimated Volcanic Explosivity Index value of 6, this eruption was 250 times larger than the eruption of Mount St. Helens in 1980. Remains of this eruption can be found all over Europe and is often used for dating of sediments. A number of unique minerals, like Hauyn can be found in the region, and quaries to mine the stone as a building material.

The Laacher is still considered to be an active volcano, proven by seismic activities and heavy thermal anomalies under the lake. Carbon dioxide (CO2) gas from magma still bubbles up at the southeastern shore (mofettes), and scientists believe that a new eruption can happen at any time, which, today, would be a disaster beyond all description.

Laacher See Photos

Carbon dioxide emanations at the shore of the Laacher See volcanic lake, Eifel region, Germany (Photo: Janka)
Carbon dioxide emanations at the shore of the Laacher See volcanic lake, Eifel region, Germany (Photo: Janka)
The caldera of Laacher See volcano on a cloudy day, Eifel region, Germany (Photo: Janka)
The caldera of Laacher See volcano on a cloudy day, Eifel region, Germany (Photo: Janka)
Cave in the ash flow "trass" deposit of the Laacher See eruption in the valley of the little creek Brohl, Eifel region, Germany (Photo: Janka)
Cave in the ash flow "trass" deposit of the Laacher See eruption in the valley of the little creek Brohl, Eifel region, Germany (Photo: Janka)
Mofette at Laacher See, Vulkaneifel, Germany, Aug 2013; (Photo: Steinbrenner)
Mofette at Laacher See, Vulkaneifel, Germany, Aug 2013; (Photo: Steinbrenner)
 



See also: Sentinel hub | Landsat 8
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