PUBLIC MARKS with tag seismology

The U.S. Geological Survey unveiled a nifty new "virtual helicopter tour" of the Hayward fault, which as you know runs down the side of San Francisco Bay on its east side. (It also is where I live.) What you may not know is that hundreds of thousands of homes and people are endangered there. A magnitude-7 event there would be an instant Katrina. The USGS page also has more useful tools, like a zoomable printable annotated photomap of the whole fault. Get your hands on it—and tell everyone you know who lives in the East Bay.

Spoiler warning! The difference between poetry and prose, is that in poetry, whitespace is significant.