Bibb Quake From Huntsville Sei...

Thanks to Steve Jones for this image… he writes:

“Hi James,
thought you might be somewhat interested in the event trace (attached GIF image) which I recorded this morning on my home-built seismograph here in Huntsville, of today’s M3.8 event with epicenter in Centerville. Note that it took about 30 sec. for the fast-moving P waves to reach Huntsville at 10:26:15 UTC, and almost a minute for the slower large-amplitude L waves to begin crossing my station at about 10:26:40 UTC.”