But when there is a storm like this you take it with a grain of salt and you live in california but it is something that you go i wonder if i should increase might earthquake insurance now that there have been some money swarms and i have felt at home and at work is a little concerned so many swarms pam although this may sound alarming to some. Seisomologists say, swarms are somewhat typical in that region of the bay area. Kron fours grant lodes explains. we have had four significant swarms since 1970 and some of the have lasted a couple of months they are sort of these pesky little swarms grant one of the biggest of magnitude 3. 5 this afternoon and the tempo is picking out up pam you can visit kron4 dot com to check out our special section on earthquakes. We have an interactive map and a list of resources to help keep your family safe in case of emergency scary moments for commuters tonight. On interstate 880. Debris fell onto both southbound and northbound lanes of interstate 880. C