Megata

Megata (Japan) is a maar or tuff cone. It rises to 160 m above sea level. The GVP records 2 confirmed eruptions in the Holocene, the latest in 2,050 BCE.

Elevation: 160 m
Last eruption: 2,050 BCE
Confirmed eruptions: 2
Max VEI: —
Country: Japan
Location: 39.95° N, 139.73° E
Region (GVP): Northeast Japan Volcanic Arc
GVP type: Maar(s)
Tectonic setting: Subduction zone / Continental crust (> 25 km)
Main rock type: Andesite / Basaltic Andesite

Show on the timeline GVP entry ↗

Other volcanoes and strong earthquakes within 300 km

Eruption history

VEI – Volcanic Explosivity Index: 0 = lava outpouring, 4 = like Eyjafjallajökull 2010, 6 = like Pinatubo 1991, 7 = like Tambora 1815. The scale is logarithmic – each step is about 10 times more material.

Start	End	VEI	Vent and dating
c. 2,050 BCE	—	?	Correlation: Tephrochronology
c. 7,050 BCE	—	?	Correlation: Tephrochronology

Data: Global Volcanism Program, Smithsonian Institution (#283262)