Lendyra event

Lendyra event
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Location of the event and the crater in Mascylla (modern map)
EventExplosion in Lendyra Sea (30–55 megatons of TNT)
Time9,800 years ago
PlaceHolocene Mascylla
EffectsImpact resulting in 50 meters high tidal wave, destroying Edwhart dam and draining the Sea into the White Sea
DamageDevastation to local plants and animals
Draining of Lendyra Sea
Creation of the Central Basin
Deaths0 confirmed, 1,000 possible
CauseImpact event of moderatly sized iron asteroid

The Lendyra event, sometimes called the Lendyra Holocene Impact or simply the Lendyra impact, describes the sudden draining of Lendyra Sea by the breach of the Edwahrt dam around 9,800 years ago. The breach was caused by a tidal wave resulting from the impact of an iron asteroid near today Flussmund, Mascylla. The object hit the water surface of the sea with the equivalent force of 30 to 55 megatons of TNT, that created a tidal wave up to 50 meters high. The waves destroyed and temporarily flooded surrounding coasts and opened the Edwahrt dam, which subsequently followed with most of the Lendrya Sea flowing into the White Sea as massive waves. The Halstein and Kreshitean hills and basins were severly flooded, leading to the creation of today's island and islet systems. After the event, most of the once filled up lake remained as a wasteland, although nutritious and fertile in composition, and established the Central Mascyllary Basin in its current form. The impact itself caused relatively little damage, however it led to the extinction of a number of plants and animals in Alemannia and changed Central Mascylla's geography greatly.

The Lendyra event is one of the largest impact events in human history. Studies have yielded different estimates on the meteoroid's size, on the order of 200 to 320 meters, though scientists can't agree on the numbers. Estimates suggest the released energy of the impact to range from 30 to 55 megatons of TNT, a force about 2,000 to 3,600 times larger than that of the first Midrasian atomic bomb tested in Renneque. Nevertheless, the event is also one of the most important geographical and environmental changes for Alemannia in the early Holocene, since the lake had a considerable importance in the controlling of weather patterns, climate, erosion processes, and human colonisation in the region, which was largely halted during and immediately after the event.