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Intra-Plate volcanism:

Hawaiian Volcanic observatory.
Mauna Loa is among Earth's most active volcanoes, having erupted 33 times
since its first well-documented historical eruption in 1843. Its most recent
eruption was in 1984.
Mauna Loa is the largest volcano on our planet.
A'a lava is the most common lava…

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Inter-Plate seismicity:
Destructive Seismicity:
Sendai (Pacific Ring of Fire) 11th March 2011
Magnitude: 8.9
Duration: 3-5 minutes
Frequency: 1000 weak tremors a year. Strongest for 300 years
Areal Extent: 516km². Tremors as far as Tokyo, Tsunami waves moderately felt
as far as West coast of America.
Epicentre: 129km from Sendai…

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Inter-Plate Volcanism:
Destructive volcanism
Montserrat: 1995-1997 Soufriere Hills - Began 18th July
Magnitude: VEI 3 vulcanian (<20km)
Duration: 2 years
Extrusion Rate: 10 cubic meters / sec
Cause: Phreatic eruption, which are caused by volcanically heated rock coming
into contact with water, from a Strato volcano. The Oceanic North American…


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