FAQs - Realtime Earthquake Information
- How do I find what I want?
- What pages should I bookmark?
- Why are squares used for the earthquakes?
- How were the symbol sizes chosen?
- How were the colors chosen?
- Why do so many earthquakes occur at a depth of 10km?
- Why don't the maps show topography?
- What do "last hour", "last day" and "last week" mean?
- How do the earthquakes get here?
- Why do some earthquakes disappear?
- Why isn't the distance to the nearest fault provided?
- How did you decide which places to use for computing the distance to individual earthquakes?
- What is the reference point for the places?
- How did you decide which places to plot on the maps?