is an active
stratovolcano of the Kameda peninsula, which is itself part of the larger
Oshima Peninsula. It is in the rural, eastern region of
Hakodate,
Hokkaido,
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
. Mount E is part of
Esan Prefectural Natural Park.
Geology
Mount E consists of
non-alkali,
mafic,
volcanic rock.
The
andesitic volcano is topped with a
lava dome.
Eruptive history
Mount E last erupted on June 8, 1874. This eruption consisted of
phreatic explosions, and was rated a 1 on the
VEI scale.
The oldest recorded eruption started November 18, 1846. The eruption triggered
lahars damaging several houses and causing fatalities.
Radiocarbon dating
Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for Chronological dating, determining the age of an object containing organic material by using the properties of carbon-14, radiocarbon, a radioactive Isotop ...
and
tephrochronology indicate five other eruptions predating the historical records in the approximate years 1350, 550 BC, 1050 BC, 3900 BC ±100 years, 7050 BC. The eruption in 7050 BC was the largest with a VEI of 3.
References
External links
Esan- Japan Meteorological Agency
* - Japan Meteorological Agency
- Geological Survey of Japan
Esan: Global Volcanism Program- Smithsonian Institution
Mountains of Hokkaido
Stratovolcanoes of Japan
VEI-3 volcanoes
Volcanoes of Hokkaido
Geography of Hakodate
Lava domes of Japan
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