Sunday, May 18, 2008
Little quake? [edit: No.]
Think we might have experienced a small quake a few minutes ago, at 4:50 AM Sunday here in the northwest part of Spokane.
I was awakened three minutes earlier by something, which might have been another quake. Didn't feel any movement, but the sound was unmistakable: a series of five deep thunder-like booms, off to the east of my house, about a half-second apart. (Boomboomboom - boomboom.) Same sound, same direction, varying patterns, was made by many of the small quakes in the 2000-01 set.
Can't think of anything else that would account for the noise, especially at 4:50 AM on a Sunday! Car crashes and transformer explosions don't have five parts, and there are no clouds to create plain old thunder.
Normally I'd have a recognizable bad mood about 18 hours before a quake, but with the ant attack on Wed and Thurs, then impending jury duty next week, I've been in maximum bad mood anyway. So the fairly brief pre-quake mood might not have been detectable if it occurred.
5:26 ... another three booms. This time I'm fully awake and ready for the sound, and I'm not so sure of its "seismicness". Could be construction blasting or something like that.
Another three at 5:35. Okay, this is definitely Anthropogenic Booming, not a quake. Too much regularity. ¶ 5:10 AM
I was awakened three minutes earlier by something, which might have been another quake. Didn't feel any movement, but the sound was unmistakable: a series of five deep thunder-like booms, off to the east of my house, about a half-second apart. (Boomboomboom - boomboom.) Same sound, same direction, varying patterns, was made by many of the small quakes in the 2000-01 set.
Can't think of anything else that would account for the noise, especially at 4:50 AM on a Sunday! Car crashes and transformer explosions don't have five parts, and there are no clouds to create plain old thunder.
Normally I'd have a recognizable bad mood about 18 hours before a quake, but with the ant attack on Wed and Thurs, then impending jury duty next week, I've been in maximum bad mood anyway. So the fairly brief pre-quake mood might not have been detectable if it occurred.
5:26 ... another three booms. This time I'm fully awake and ready for the sound, and I'm not so sure of its "seismicness". Could be construction blasting or something like that.
Another three at 5:35. Okay, this is definitely Anthropogenic Booming, not a quake. Too much regularity. ¶ 5:10 AM
