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1. Title

   Asia: earthquake density map

   Description

   This map illustrates the average number of earthquakes per year in Asia, of magnitude 5 and above at all depths. It shows major tectonic boundaries, subduction zones, ridges and transform faults. The map is provided by the United States Geological Survey (USGS).

   Publisher

   United States Geological Survey (USGS)

   http://earthquake.usgs.gov/earthquakes/world/asia/density.php

2. Title

   Asia: seismic hazard map

   Description

   This map of Asia displays seismic hazards in terms of peak ground acceleration (PGA). It also includes all major plate boundaries in the region: subduction zones, transform margins; and spreading centres. The map was developed by the Global Seismic Hazards Assessment Program (GSHAP) of the United States Geological Survey (USGS).

   Publisher

   United States Geological Survey (USGS)

   http://earthquake.usgs.gov/earthquakes/world/asia/gshap.php

3. Title

   Asia: seismicity map: 1900 to 2012

   Description

   This map illustrates the number of earthquakes of magnitude 7.5 and above occurring in Asia from 1900 to 2012 at all depths. It also shows plate boundaries. The map is provided by the United States Geological Survey (USGS).

   Publisher

   United States Geological Survey (USGS)

   http://earthquake.usgs.gov/earthquakes/world/asia/seismicity.php

4. Title

   FAQ about relationships between earthquakes and volcanic eruptions

   Description

   This resource from the United States Geological Survey (USGS) answers the question, Is there a relationship between earthquakes larger than magnitude 6 that occur along major fault zones and nearby volcanic eruptions?

   Publisher

   United States Geological Survey (USGS)

   http://volcanoes.usgs.gov/about/faq/faqeq.php

5. Title

   FAQs about volcanic eruptions

   Description

   This resource answers questions about the relationships between different volcanoes and between earthquakes and volcanoes. Can an eruption at one volcano trigger an eruption at another nearby volcano? Is there evidence for a cause and effect relationship between eruptions that occur at about the same time from volcanoes located hundreds to thousands of km apart? Is there a relationship between large earthquakes (>M 6) that occur along major fault zones and nearby volcanic eruptions? The FAQ is provided by the United States Geological Survey (USGS).

   Publisher

   United States Geological Survey (USGS)

   http://volcanoes.usgs.gov/about/faq/faqerupt.php

6. Title

   Plate tectonics: LearningSpace: Open University

   Description

   This intermediate module focuses on the theory of plate tectonics. It covers tectonic plates, crustal growth and heat transfer mechanisms, plate boundary types, the difference between relative and true plate motion, and forces influencing plate motion at plate boundaries. The module is expected to take fifteen hours to complete and is provided by the UK Open University as part of its LearningSpace, a collection of over 800 free online courses (as at July 2016).

   Publisher

   Open University

   http://www.open.edu/openlearn/science-maths-technology/science/geology/plate-tectonics/content-section-0

7. Title

   Volcanic gases and their effects

   Description

   This resource provides information about the types of gases emitted by volcanoes before, during, and after volcanic eruptions, and the effects of those gases on the local, regional, and global environment. It is provided by the United States Geological Survey (USGS).

   Publisher

   United States Geological Survey (USGS)

   http://volcanoes.usgs.gov/about/hazard/gas/