Good morning, and welcome to the Essential California newsletter. It is Saturday, Sept. 9. Here’s what you don’t want to miss this weekend:
A grave warning
The magnitude 8-plus earthquake that ravaged southern Mexico Thursday was the largest to shake the country in nearly a century. Like California, Mexico is a seismically active region that has seen smaller quakes that have caused death and destruction. But Thursday’s temblor is a reminder that even larger...