SeisComPBGR2026-04-04T00:08:46.69683ZGerman Regional Seismic Network, BGR Hannover10.25928/mbx6-hr7454.1875187.87359151Helgoland radio tower2017-11-30T07:00:00Z54.1875187.873591510900100100104774130001M/SVelocity in Meters Per Second54.1875187.87359151000100100104774130001M/SVelocity in Meters Per Second54.1875187.8735915100-90100100104774130001M/SVelocity in Meters Per Second