And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Friday, May 15, 2020
Nice 6.5 earthquake out in Tonopah Nevada
It looked like this on the seismographs up at Lassen. Four in the morning. Figures,
Felt it pretty good in the Pine Grove metropolitan area. Two distinct shocks. Wife guessed 5, I guessed 6+. I'm sure Tonopah could use the excitement. MfG, Goetz
When I lived in a highly-active area, I was surprised at the range of differences with quakes. Shallow versus deep ones, the motions involved, even the sounds. Some of them sounded like a close thunderclap - you could hear them coming - others completely silent and just a sharp single jolt. What's really mind-bending, if you happen to be inside a big, open-plan type building, is to see the corners of the box you're inside of, moving around and flexing independent of each other. Earthquakes violate your visual and motion frames of reference, and the brain cannot process it. They're really disorienting.
Twice I've seen the ground surface wave variation during an EQ. Just bizarre to see a blacktop parking lot look like waves from passing boats. Unfortunately, the first one was around 8-9 years prior to the '89 Bay Area 'quake that collapsed the freeway in Oakland with those sort of waves. The 'quake experts were unaware of that type, but that first one I saw was in Sunnyvale. Nobody told them about it. I assumed it was typical, but had only been in the area for a few years.
It looked like this on the seismographs up at Lassen. Four in the morning. Figures,
I don't suppose that you want to hear: " What's shaking, baby?", do you?
ReplyDeleteThanks for the post.
Paul L. Quandt
Felt it pretty good in the Pine Grove metropolitan area. Two distinct shocks. Wife guessed 5, I guessed 6+. I'm sure Tonopah could use the excitement.
ReplyDeleteMfG,
Goetz
When I lived in a highly-active area, I was surprised at the range of differences with quakes. Shallow versus deep ones, the motions involved, even the sounds. Some of them sounded like a close thunderclap - you could hear them coming - others completely silent and just a sharp single jolt. What's really mind-bending, if you happen to be inside a big, open-plan type building, is to see the corners of the box you're inside of, moving around and flexing independent of each other. Earthquakes violate your visual and motion frames of reference, and the brain cannot process it. They're really disorienting.
ReplyDeleteTwice I've seen the ground surface wave variation during an EQ. Just bizarre to see a blacktop parking lot look like waves from passing boats. Unfortunately, the first one was around 8-9 years prior to the '89 Bay Area 'quake that collapsed the freeway in Oakland with those sort of waves. The 'quake experts were unaware of that type, but that first one I saw was in Sunnyvale. Nobody told them about it. I assumed it was typical, but had only been in the area for a few years.
DeleteWhat happened at Area 51?
ReplyDeletenot really an earthquake; SR-73 making high speed passes at deck level.
Delete