It can be both basaltic and andesitic.
Basaltic magma has the lowest silica content and is, therefore, the fastest due to a low viscosity. Basaltic magma is also the hottest at around 1200 *C.
Laki Iceland, 1783-84
Kilauea Hawaii, 2018
Krafla Iceland, 1975
El Chichon Mexico, 1982
Toba Indonesia, 75,00 ya
Hawaiian eruptions take their name from the Hawaiian volcanic eruptions; often in fissure form. Strombolian eruptions take their name from Stromboli; a volcano in Italy. It eruptions produce 'fire or lava fountains'.
Most do not produce a climatic effect as they produce small to no volcanic plumes. Their volatiles cannot reach the stratosphere. Eruptions such as Laki have had a long duration, low energy, high volume eruption which has been able to produce a climatic effect (decreasing N. hemisphere temperatures by 1 *C)
All are named aptly; describing the shape/ look of the tephra.
All of these answers.
Pele's hair/ tears
Basaltic pumice (Scoria)
The high amount of this aerosol emitted into the atmosphere is what allowed Laki to have an effect on climate.
20 Million tonnes (Mt)
Although it has very recently become more violent, Kilauea has been continuously erupting for 35 years and is one of the most active volcanoes on the planet.
Around 2000 people have been evacuated.
36 buildings have been lost.
There are 14 different fissures counted so far.
Trumps wall can/ is stopping the lava flow.
The current event is due to a 6.9 magnitude earthquake.
选择要在Apple App Store上查看的Topgrade应用程序。