levo

Tectonic Hazards

Contrasting volcanic eruptions

  • 2 things to know
  • Component 3 Section A

Overview

Two eruptions set against each other — the hazards each produced, who was exposed, and why the death tolls differed so sharply between a wealthy country and a poor one.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Numbers

When did Soufrière Hills begin erupting, and what type of volcano is it?

Numbers

Describe the main impacts of the Montserrat eruption.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    When did Soufrière Hills begin erupting, and what type of volcano is it?

    Model answer

    Soufrière Hills on Montserrat began erupting on 18 July 1995 after centuries of dormancy. The volcano is a composite cone that repeatedly grows and collapses lava domes.

  2. 2

    Describe the main impacts of the Montserrat eruption.

    Model answer

    Plymouth, the island's capital, was buried under ash and mud and then abandoned. Pyroclastic flows on 25 June 1997 killed 19 people in the farming villages to the north.

  3. 3

    How much of Montserrat became uninhabitable?

    Model answer

    An exclusion zone covers roughly two-thirds of the island, including the former capital. The remaining population is concentrated in the north.

  4. 4

    How did the Montserrat eruption change the island's population?

    Model answer

    Montserrat's population fell from around 11,000 before the eruption to about 4,000 by 1998. Most of those who left settled in the United Kingdom.

  5. 5

    What long-term responses followed the Montserrat eruption?

    Model answer

    A new administrative centre was developed at Brades and a new airport opened in 2005. The Montserrat Volcano Observatory now monitors the dome continuously.

  6. 6

    Describe the Eyjafjallajökull eruption of 2010.

    Model answer

    Eyjafjallajökull in southern Iceland erupted explosively from 14 April 2010 beneath an ice cap. Meltwater fragmented the magma and produced a fine ash plume reaching about 9 km.

Other ways to work this

The same content, four other ways.

What is inside Levo

Six ways to work the same material.

1Closed book
2Open book
3Closed book

The 3-step method, run for you

Answer cold, learn it, then prove it stuck. Levo tracks the jump between your first attempt and your last.

Coastal Landscapes
Glaciated Landscapes
Changing Places
Water and Carbon Cycles

Cram a whole paper in one sitting

Sort every topic into what you know and what you do not, then drill only the weak ones.

One therefore represents 250 metres.
centimetremetremillimetre

Blank Blitz makes facts automatic

Rapid timed gap-fills on the terms and numbers you need to recall without thinking.

ACustomary rights are often unwritten.
BA government can lease the same land to an investor.
COccupants then have no legal defence against eviction.

Build It gets the exam shape right

Assemble a full-mark answer from its marking points, in the order an examiner wants them.

Due west is a bearing of 270°.
TrueFalse

Test It catches misconceptions

Spot the fault in a statement. The traps are the mistakes students actually make.

721941163128510

Brain Breaks between sessions

Short focus games to reset attention, so the next set lands better than the last.

Every question in Tectonic Hazards, on a schedule.

Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.

Or £46 a year, about £3.83 a month. Cancel anytime.