Magnitude 6.4 #earthquake in Northern #California about 12 minutes ago (2022-12-20Z10:34) - when I request data I only seem to be be getting the first few seconds of the signal at the moment. Trying out different stations! I guess this will be very widely felt.
https://earthquake.usgs.gov/earthquakes/eventpage/nc73821036/executive
OK. This is the signal at Pinon Flats in Southern California. Data obtained via IRIS using @obspy software.
Magnitude 6.4 #earthquake Northern #California 2022-12-20
https://earthquake.usgs.gov/earthquakes/eventpage/nc73821036/executive
@stevenjgibbons @obspy Displacement seismogram at UO_CAVE Cave Junction, OR, 180km north of the earthquake
http://alomax.free.fr/webtools/sgweb.html?http://service.iris.edu/irisws/timeseries/1/query?net=UO&sta=CAVE&loc=--&cha=HHZ&starttime=2022-12-20T10:34:03.099&duration=196&output=plot&demean=true&int=true
@ALomax @stevenjgibbons @obspy
What's the story is with the double peaks?
Sensor hitting the stops?
@zl2tod @stevenjgibbons @obspy It does not look like there is any clipping. Here is the original ground-velocity seismogram as recorded by the sensor. Interactive visualization here: http://alomax.free.fr/webtools/sgweb.html?http://service.iris.edu/irisws/timeseries/1/query?net=UO&sta=CAVE&loc=--&cha=HHZ&starttime=2022-12-20T10:34:03.099&duration=196&output=plot&demean=true&int=false
@ALomax @stevenjgibbons @obspy
Thanks Alan.
Yep, that looks clean enough from the sensor.
Interesting.