What series of San Diego-area earthquakes mean for 'big one' likelihood

SAN DIEGO – After a series of small earthquakes rattled the eastern San Diego region last weekend, many residents might be asking themselves why there were so many shocks all of a sudden or if something bigger is on the horizon.

Experts say that the back-to-back shocks are something that residents should be aware of, but not all too concerned about for forecasting the future likelihood of a major earthquake.

The earthquakes that hit the region last week are part of what scientists call a “swarm,” which is a series of dozens of smaller earthquakes within a span of a couple days up to several weeks.

In the last week, there were a few different areas nearby San Diego that had a swarm event, according to the U.S. Geological Survey<...