Easter Sunday marks nine years since the last major earthquake shook the San Diego region. The magnitude 7.2 Baja California earthquake caused significant damage in Mexicali in 2010.

Nearly five years have passed since an earthquake of magnitude 6 or stronger occurred in California. Researchers with the U.S. Geological Survey recently published a study detailing how the state is in the midst of an earthquake drought, defined as a span of 100 years with no major, ground-rupturing earthquakes. Scientists say it’s possible the pattern could change in the years ahead with a period of more frequent, destructive earthquakes.

Dr. Thomas Rockwell, a San Diego State University geology professor and paleoseismologist, discussed the study findings and the history of earthquakes in the San Diego region.

Video: San Diego Earthquake Professor Talks Earthquake Drought