“Even the global sea level is now half a millimeter higher than it was before the temblor.”

“In the 70 years prior to the 1906 earthquake, a temblor of at least magnitude 6 struck the region an average of every four years, she said.”

“There have been over 500 aftershocks since the temblor, causing interruptions in the rescue effort.”

“Seismic instruments will be installed along both plates in a section of the fault where small temblors of magnitude 2.0 are frequent.”

“During a typical year, 18 major temblors and one great earthquake occur worldwide.”

“In recent decades, quakes felt in San Diego, a city lacking a big disaster in its history, have tended to be far-away temblors with a long reach.”