Megata
Sign in to saveMegata is a volcanic group on the Oga Peninsula in northwestern Honshu, Japan. It consists of three basaltic-to-dacitic maars at the edge of the peninsula. These maars measuring between and across are filled with water, forming freshwater lakes. Ichinomegata is the widest and oldest of the three. These features date to around the Pleistocene although pottery discovered between layers of tephra has been dated to 4,000 years before present. An older and larger maar is located offshore on the western coast of the peninsula, known as Toga (Togowan), it formed 450,000 years ago. The western wall of
Wikidata facts
- Instance of
- volcanic group
- Country
- Japan
- Located in
- Oga
- Elevation
- 291
- Image
- Ninomegata and Toga Bay from Hachibodai 20200118.jpg
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- Commons category
- Megata
- located in/on physical feature
- Oga Peninsula
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Encyclopedic overview
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Megata is a volcanic group on the Oga Peninsula in northwestern Honshu, Japan. It consists of three basaltic-to-dacitic maars at the edge of the peninsula. These maars measuring between and across are filled with water, forming freshwater lakes. Ichinomegata is the widest and oldest of the three. These features date to around the Pleistocene although pottery discovered between layers of tephra has been dated to 4,000 years before present. An older and larger maar is located offshore on the western coast of the peninsula, known as Toga (Togowan), it formed 450,000 years ago. The western wall of Toga maar is breached, forming a bay.
Ichinomegata maar has a depth of . The depth of Ninomegata is .
Excerpted from Wikipedia’s “Megata” article, available under the CC BY-SA 4.0 licence.
On the map
2 mapped locations