A moderately strong, 5.2-magnitude earthquake struck in Southern California on Monday, according to the United States Geological Survey. The temblor happened at 10:08 a.m. Pacific time about 2 miles south of Julian, Calif., data from the agency shows. U.S.G.S. data earlier reported that the magnitude was 6.

So with Earth Day coming up, here are 10 things you can do in honor of Earth Day. 10 a.m.-2 p.m., Saturday, April 19 at 1367 North California St., San Bernardino. akomaunitycenter.org. The Center’s celebration will include gardening workshops, kite making classes, face painting and earthworm composting.