Is it true that little earthquakes are precursors to big ones?

Sometimes. Statistically speaking, both large and small earthquakes are a little more likely to happen after an area has experienced some small to moderate earthquakes. read more

Statistically speaking, both large and small earthquakes are a little more likely to happen after an area has experienced some small to moderate earthquakes. This is because seismic events tend to cluster in time, as the release of strain on one fault section increases the stress on adjacent fault sections. read more

When you are in an earthquake prone zone, say for example the San Andreas region. Over year, you can predict the number of quakes per year. When you go for a long period of time with no earthquake you have a greater chance of having one. read more