Hunga Tonga

Hunga Tonga is a Submarine Volcano/Seamount

Located in the Pacific Ocean
Off the Coast of Tonga
Inside the Pacific Ring of Fire
On the Subduction boundary Between The Pacific Plate and The Australian Plate
Near the Country of Tonga and Fiji
Near Nuku'alofa which is the capitol of Tonga

The first eruption was in 1912
The most recent eruption was March 18th 2009, the eruption previous to that was in 1988.
Hunga Tonga never had a famous eruption but the eruption in 2009 was known around the world due to the press coverage and civilian videos

The Volcano is only 149m above the sea level. The Seamount is very close to an large submarine caldera. The islands are andesitic. The volcano has one vent for the eruption

The eruptions arent explosive but they send ash and smoke up to 40 kilometers in the air. Which will disrupt air travel in the surrounding area. The lava is Basaltic which makes it fast flowing but the volcano is too far away from land for the lava to make much of a difference. The eruptions arent very dangerous because there isnt much lava, but the ash and debris disrupts air travel and since the volcano is oceanic there is a possible risk of a tsumani

The soil around the seamount will be fertile but since it is an undersea volcano the soil fertility isnt important. The volcano isn't really threatening to property other that boats and airplanes near the volcano. The volcano sends a lot of ash into the atmosphere which can cause damage to the atmosphere which can help spur Global Warming, and cause trouble for Commercial, Civilian, and military, air travel