According to Stephen Hicks (@Seismo_Steve on Twitter) Hurricane Irma is being Detected by some equipment that is designed to read earthquakes.
Seismometer recordings from the past 48 hours on Guadeloupe show Cat. 5 #Hurricane #Irma driving closer toward the Lesser Antilles pic.twitter.com/9y3Nuv2Z9E
— Stephen Hicks 🇪🇺 (@seismo_steve) September 5, 2017
In the twitter thread Steve also says that this also happened to their equipment in the Gulf when Harvey was coming through