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Originally posted by diamondsmith
Don't tell me that this is normal[earthquake.usgs.gov...].I don't buy it!!!
MEGW (Megler, Washington) was a 6-channel station (3 broad-band, 3 strong-motion), installed over a decade ago as part of the seismic monitoring for Tsunami hazard, under the acronym CREST, that nobody around now can easily remember what it means. MEGW was installed in -- yes IN, a power substation, that takes lots of traffic, and is noisy noisy noisy. While the station continues to operate, it was replaced functionally by station RADR. On a nearby hill, RADR is a much quieter site.
I'll append an image of today's seismogram from the vertical broadband channel at RADR--the big earthquake you see is the M6.9 just offshore of Peru. Hope this helps your understanding of the situation at MEGW.
Originally posted by StealthyKat
I had an experience yesterday similar to your friend. I was lying on the bed watching TV, and it felt like someone pushed it hard several times. It moved horizontally. My friend was in the living room, and yelled to me "did you feel that?!" She had the same experience in the recliner she was sitting on. I have no idea what it was, but I've never felt that before....it was as if someone walked up to the bed and put their hands on the frame and pushed it toward the wall rapidly 3 or 4 times.It was aprox 8:00 last night
Originally posted by TXTriker
I would like some of our resident experts to look at this link. This is a station in Hockley, TX. It states that the start date is 10-28-11.
Are all the readings from the Peru quake? I first looked at it a 18:45 CT but it has activity showing later?
Am asking because a friend wanted to know if there had been an earthquake today. She was waiting for her car and said it felt like she was lifted up and then dropped. She was in downtown Houston and felt it about 3:30 or so.
One of things he notes is the 6-second-period, sub-one-hz traces that often show on seismos near coastal regions. It's a classic sign of ocean water movement and whenever I'm watching near-coast seismos it's one I always allow for. On west-coast seismos, whenever I see rather large but fairly constant traces I like to chekc how close the seismo is to the coast and also what the weather is -- or has been during the past day.