Magnitude 5.5 #earthquake in #Gabon 30 minutes ago (2022-12-04Z09:53).
Signal on station G.EDA (courtesy of the #GEOSCOPE global #seismic network and made available via #IRIS) - displayed using @obspy software. There were two very similar events here in March 2021 but today's is larger. https://earthquake.usgs.gov/earthquakes/eventpage/us6000j6u0/executive
@stevenjgibbons @obspy The seismogram from station GT.DBIC at Dimbokro, Ivory Coast shows very sharp and clear P and S energy arrivals and a long, dispersed, surface wave train - due to relatively "simple" oceanic geology between the earthquake and station.
Interactive view: http://alomax.free.fr/webtools/sgweb.html?http://service.iris.edu/irisws/timeseries/1/query?net=GT&sta=DBIC&loc=00&cha=BHZ&starttime=2022-12-04T09:54:16.719&duration=859&output=plot&demean=true&int=true
@carowe @ALomax @obspy
Yes - gives me a sinking feeling ...
https://earthquake.usgs.gov/earthquakes/eventpage/us6000j6u0/executive
@carowe @stevenjgibbons @obspy
Click on a blue triangle on this map
http://alomax.free.fr/projects/early-est//events/hypo.1670147597541.map.html
then click on "BRB". An interactive, 1 hour plot of the seismogram showing vertical ground motion should come up.
@ALomax @stevenjgibbons @obspy is there a mechanism, and what does this look like at other stations elsewhere?