on the san an drees, we had an earthquake down here. there's a belief what is happening is the earth quaiks are moving. two earth quaiks from now we'll have an ep center up here. it's pretty much our time in th next 20 years. if you actually talk to geologists, they're front loading it. they may say it's a virtual certainty in 20 years, but they're saying it's not five percent a year, 20 years into a hundred percent. it's 10 percent a year for the first ten years. it's so front loaded. we're overdue. >> let's stipulate to the fact. an earthquake is going to happe in the relative near future, ou lifetime near future. although maybe i'll be retired by then. >> we'll drag you out of retirement. >> okay. let's look at strans itself. we have a seismic matter map an it's -- it has been formally adopted by the state and the city uses this map. it shows us certain areas of th city as having high probability of liqii faction or soil stability. typically, you have the various kind of soil failures you might have, buildings can settle, spreading w