California ? Dozens of small earthquakes are shaking the desert of southeastern California, the day after a moderate temblor struck on the edge of the Salton Sea.

The largest of Wednesday’s earthquakes was a magnitude-3.7 recorded at 12:59 p.m. and a magnitude-3.9 at 8:25 p.m. Earlier in the day, swarms of smaller ones shook the sparsely populated area 90 miles east of San Diego. A magnitude-3.5 quake struck shortly before 1 a.m.

Tuesday’s magnitude-4.8 quake struck before dawn near the small town of Bombay Beach.

There have been no reports of damage or injury from any of the quakes.