California had a few small earthquake. This reminds us that big earthquakes are possible there.
Small Earthquake Hit California
California had four small earthquakes in a short time. Most people didn’t even feel them.
The San Andreas Fault
These quakes happened on the San Andreas Fault. This is a big crack in the ground. Big earthquakes can happen there.
Big Earthquake in the Past
Big earthquakes have happened on this fault before. They caused lots of damage.
When Will the Next Big One Hit?
No one knows when the next big earthquake will hit. But people should be ready.
Lots of Little Quakes
California has many small earthquakes every year. These remind us that a big one is possible.
Source: USGS
