Japan and Indonesia Flashcards
(32 cards)
Which tectonic plates surround Japan?
Pacific, Philippine, Eurasian and North American
How many volcanic eruptions have occurred in Japan in the last 2000 years?
Approximately 1200
Where is Mount Ontake?
200km west of Tokyo
What kind of volcano is Mt. Ontake?
A strato-volcano
When did Mt. Ontake have a series of eruptions after centuries of being dormant?
Between October 1979 and April 1980
Why did people visit Mt. Ontake?
The area was popular with climbers and trekkers, and it was also a place of spiritual pilgrimage.
When did Mt Ontake erupt?
27th September 2014, just before midday
Was Mt. Ontake under any alerts or warnings before the 2014 eruption?
No, but there had been some increase in earthquake activity before the eruption took place
How many people were killed by the Mt. Ontake eruption?
63
What were large areas surrounding Mt. Ontake affected by?
Ash fall, pyroclastic flows, volcanic bombs and lahars
Who were most of the casualties of the Mt. Ontake eruption?
Climbers and hikers on the slopes of the volcano
How many survivors made it down the mountain?
More than 200, and S&R teams were deployed to rescue those seriously injured
Why was the air space in the vicinity of the Mt. Ontake eruption temporarily closed?
As a precaution against the potentially damaging effects of fine volcanic ash on aircraft jet engines.
What did Shinzo Abe (Japan’s Prime Minister) do in response to the Mt. Ontake eruption?
He ordered the military to assist with emergency rescue operations.
How long is Indonesia’s archipelago?
3000km
What do the plate movements around Indonesia produce?
High levels of seismic and volcanic activity
How many of Indonesia’s dated volcanic eruptions have occurred since 1900?
80%
What type of volcano is Merapi?
A strato-volcano
How tall is Merapi?
Nearly 3000m
When did Merapi erupt?
Between the 26th October and 12th November 2010
How far did the pyroclastic flow from Merapi travel to the north?
4km
How far did the pyroclastic flow from Merapi travel to the west?
11.5km
How far did the pyroclastic flow from Merapi travel to the east?
7km
How far did the pyroclastic flow from Merapi travel to the south?
15km
