Geological Phenomena and Events
By Andrew Alden, About.com Guide to Geology
When something is happening, come here to find out more.
Current Earthquakes, Eruptions and Tsunamis
Fast access to information on these geologic hazards.
About Earthquakes
Background and detail on earthquakes and how to prepare for them.
- Earthquakes in a Nutshell
- About Aftershocks
- Seismic Liquefaction
- The 3 Types of Earthquake Faults
- Richter Scale: Earthquake Magnitude
- Mercalli Scale: Earthquake Intensity
- The San Andreas Fault
- Maps of World Earthquake Hazard
- Historic Earthquakes
- Earthquake Preparedness
- Predicting Earthquakes
- Forensic Seismology
- Infrasonics
About Volcanoes
Background and detail on volcanoes and the processes that make them.
About Tsunamis
Tsunamis are giant sea waves created by earthquakes, landslides and cosmic impacts.
- Introducing Tsunamis
- Six-Point Tsunami Intensity Scale
- 12-Point Tsunami Scale of 2001
- Deadliest Tsunamis in 4 Oceans
Other Geologic Hazards
Newsworthy threats beyond the Big Three of quakes, eruptions and tsunamis.
Climate Change
Global warming is the political problem; climate change is the scientific problem.
- Global Warming in a Nutshell
- Geoengineering and Climateering
- Parameters in Climate Modeling
- Deeper Resources on Climate Change
Geology in the News
Whatever the topic is, here is help finding more about it.
