description Lappajärvi Overview
Lappajärvi is a prominent meteorite impact crater located in the Southern Ostrobothnia region of Finland. The impact event occurred approximately 76 million years ago during the Late Cretaceous period, creating a crater with an original diameter of about 23 kilometers. Today, the structure is heavily eroded and filled with water, forming a large lake of the same name. Geological studies of the site have revealed impactite rocks such as suevite and impact melt breccia.
help Lappajärvi FAQ
Where is the Lappajärvi impact crater?
Lappajärvi is in Southern Ostrobothnia, Finland. The structure is now partly occupied by Lake Lappajärvi.
When did the Lappajärvi impact happen?
The impact occurred approximately 76 million years ago during the Late Cretaceous period. It formed a much larger crater than the lake visible today.
How wide was the original Lappajärvi crater?
The original crater was about 23 kilometers in diameter. Erosion and later geological changes have altered its surface expression.
Is Lappajärvi a meteorite crater or a volcanic crater?
Lappajärvi is a meteorite impact crater. Its origin is linked to a large extraterrestrial impact during the Late Cretaceous.
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