Where is the Kermadec Islands?

About Kermadec Islands:

• They are volcanic island group in the South Pacific Ocean, 600 mi (1,000 km) northeast of Auckland, New Zealand.
• They are a dependency of New Zealand.
• The islands are a volcanic island arc, formed at the convergent boundary where the Pacific Plate subducts under the Indo-Australian Plate.
• They are the tiny emergent part of a chain of submarine volcanoes that define the Kermadec ridge.
• They are uninhabited, except for Raoul Island where a team of Department of Conservation staff carry out weed control work and make meteorological observations.
• The climate of the islands is subtropical.
• The islands are seismically active.

 

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Q1) What is a tectonic plate?

A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest.

Source: 6.9 magnitude earthquake strikes Kermadec Islands in New Zealand