Seismic and Volcanic hazards: key terms/concepts
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Last updated about 3 years ago
20 questions
Required
1
Which two of the waves listed below are surface waves?
Which two of the waves listed below are surface waves?
Required
1
Which of these definitions refers to the focus of an earthquake
Which of these definitions refers to the focus of an earthquake
Required
1
On the map suggest where the deepest (measured by focus depth) earthquakes may occur
On the map suggest where the deepest (measured by focus depth) earthquakes may occur
Required
1
Which of the descriptions below matches a strike slip fault?
Which of the descriptions below matches a strike slip fault?
Required
1
True or false: surface waves can travel through the earths core
True or false: surface waves can travel through the earths core
Required
5
Identify 5 different factors that can influence the impact of an earthquake event
Identify 5 different factors that can influence the impact of an earthquake event
Required
1
Which of the names below refer to ways of measuring earthquakes that are commonly used today
Which of the names below refer to ways of measuring earthquakes that are commonly used today
Required
1
Which of the factors below contributed to the worsening of the Haiti earthquake disaster in 2010? Tick all that apply
Which of the factors below contributed to the worsening of the Haiti earthquake disaster in 2010? Tick all that apply
Required
5
Match the geobite to the characteristic
Match the geobite to the characteristic
Wooden buildings set on fire | Avalanches | Extensive landslides | Lead to a tsunami | Tsunami lead to failure of a nuclear plant | |
|---|---|---|---|---|---|
Haiti 2010 | |||||
Kobe 1995 | |||||
Kashmir 2005 | |||||
Nepal | |||||
Sendai/Tohuko |
Required
1
Which of the definitions below is refering to ejecta?
Which of the definitions below is refering to ejecta?
Required
1
Which of the definitions below is refering to Tephra?
Which of the definitions below is refering to Tephra?
Required
1
Which of the combination of factors below cause volcanic eruptions?
Which of the combination of factors below cause volcanic eruptions?
Required
8
Most viscous | Least viscous | Greatest amount of exsolved gases | Greatest silica content | Found at divergent plate margins | Formed by oceanic crust being subducted under oceanic crust (island arcs) | Forms acid cone volcanoes | Associated with fissure volcanoes | |
|---|---|---|---|---|---|---|---|---|
Ryolitic | ||||||||
Andesitic | ||||||||
Basaltic |
Required
2
Draw an annotated diagram to expain the formation of caldera volcanoes
Draw an annotated diagram to expain the formation of caldera volcanoes
Required
1
Lava dome volcanoes require viscous magma to form
Lava dome volcanoes require viscous magma to form
1
Which of these descriptions fit a pyroclastic flow (select all that apply)
Which of these descriptions fit a pyroclastic flow (select all that apply)
1
Which of the hazards below can be found at constructive/divergent plate margins?
Which of the hazards below can be found at constructive/divergent plate margins?
Required
1
Name four secondary hazards associated with volcanoes
Name four secondary hazards associated with volcanoes
Required
6
Match the volcano geobite to the key characteristic
Match the volcano geobite to the key characteristic
Runny lava covering roads and homes, forcing evacuation | Phreatic eruption which took tourists by surprise | Thich deposits of ash caused the capital to be relocated | Eruption caused a tsunami | Large ash clouds and pyroclastic flows | Supervolcano that is also a caldera and could change the climate! | |
|---|---|---|---|---|---|---|
Kilauea | ||||||
Nyiragongo | ||||||
Mount Etna | ||||||
Montserrat | ||||||
Yellowstone | ||||||
White Island | ||||||
Mount Ontake | ||||||
Tonga | ||||||
Mount St Helens |
Required
1
All volcanoes occur on land
All volcanoes occur on land