About: http://webisa.webdatacommons.org/343082770

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	On land, the typical receiver used is a small, portable instrument known as a geophone, which converts ground motion into an analogue electrical signal.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org